Category: News

Newstungstenmolybdenummetals is a professional news and article media center for new materials, nano materials, chemical company, machinery, digital products, indusitrial products and more. Newstungstenmolybdenummetals has a professional editorial and researching team that provides qualified and authentic content on the internet. We also have laboratory and R&D resources for advanced Nano material / New material research and experiment. Our topics: nanoparticles, graphite powder, boron powder , zinc sulfide , nitride powder, Molybdenum disulfide,silicon powder,max phases powder, quartz powder, 3D printing metal powder, and so on.

Zirconium ntride is a hard ceramic material similar to titanium nitride

What is zirconium-nitride (ZnN)? The zirconium-nitride, with its chemical formula ZrN, has excellent corrosion resistance. It also has a high degree of hardness, lubricity, and ductility. This coating is attractive due to its many properties. It is applied using physical vapor deposit. It is available in a yellow crystalline coating or attractive golden coating.

The zirconium-nitride has a physical and chemical property of 7.09 and a microhardness between 9800 and 19600 MPa. It also has a melting point of 2980 degrees Celsius plus or minus fifty. Zirconium is soluble only in hydrofluoric and concentrated sulfuric acids. Zirconium (ZrN), because of its properties, can be used in various ways.

ZrN grown through physical vapor deposit (PVD), is similar in color to elemental Gold. ZrN has a resistivity of 12.0mO*cm at room temperature, a temperature coefficient resistivity of 5.6*10-8O*cm/K and a superconducting threshold temperature of 10.4K. The relaxation lattice parameters is 0.4575nm. The elastic modulus and hardness are 450 GPa.
What is zirconium-nitride used for?
Zirconium Nitride is a ceramic hard material, similar to titanium nitride. It also acts as a cement like refractory. This material can be used to make refractory materials as well as laboratory crucibles, cermets or cermet alloys. Physical vapor deposition is a coating method that is commonly used on medical equipment, industrial components (especially drill bits), aerospace and automotive parts, as well as other parts exposed to harsh environments and high wear. In the case of alloying ZrN with Al, electronic structure is developed from the cubic ZrN’s local octahedral symmetry. As the Al concentration increases, this symmetry is distorted and becomes more complex, with a higher degree of hardness.
For rockets, zirconium-nitride is recommended as a fuel tank lining.

Zirconium Nitride (ZrN) compounds are composed of different crystal structures. These vary depending on their composition. ZrN is an alloy compound that has been discovered in the ZrN system. Not only do they have excellent chemical characteristics, but they can also be used in junctions, diffusion laminations, low temperature instruments, etc. These compounds can be used in three-dimensional integrated electronic coils as well as metal-based semiconductor transistors. The ZrN compounds have superior wear resistance to pure zirconium, as well as oxidation, corrosion and wear resistance. In addition, they have a greater superconducting threshold temperature.

Preparation and use of zirconium powder
The main processes for the synthesis of zirconium oxide powder include direct nitridation using nitrogen on Zr metals, high-energy ball milling, microwave plasma, benzene method, aluminum reduction, magnesium thermal, carbothermal nitridation. There are suitable routes for various particle morphologies and sizes. The mass production of Zirconium Nitride and other Transition Metal Nitrides is possible. It should be noted, that due to the formation solid solution within the ZrN – ZrC – “ZrO” System, the final nitriding product in CRN, or CN, is typically represented by this formula Zr (N – C – O). It is necessary to perform a CRN two-step process. The nitrite is converted from zirconium carburide (ZrC), which was produced earlier as an intermediate. The CN method is a direct nitridation in the presence carbon of ZrO2, and it only requires a single heat treatment. It is possible that the latter method can be more time- and energy-efficient in producing zirconium-nitride.

In oxygen reduction, zirconium nitride surpasses platinum
Pt-based materials play an important role in microelectronics, anti-cancer medicines, automotive catalysts, and electrochemical energy-conversion equipment. Pt, the most common catalyst for oxygen reduction reactions (ORR), is used in fuel cell and metal-air battery applications. Its toxicity, scarcity, and cost limit its potential use. In this study, we demonstrate that nano-particles of zirconium (ZrN), can replace or exceed Pt in ORR catalysts for alkaline environments. The synthesized ZrN (nanoparticles) exhibit high oxygen-reduction performance, and are as active as the commonly used commercial catalyst Pt/C. After 1000 ORR cycle, both materials had the same half wave potential (E1/2 = 0.80 V), but ZrN was more stable (DE1/2 than = 3 mV). In 0.1 M KOH. ZrN is also more efficient and has higher cycles in zinc-air battery than Pt/C. ZrN replacing Pt may lower costs and encourage the use electrochemical energy devices. ZrN could also be useful in catalytic systems.
Enhanced Photoluminescence Combined with a Periodic array of Organic Dyes and Zirconium Nitride Nanoparticles
Due to their excellent optical properties, noble metals like gold have been used in plasma technology. The melting temperature of gold, particularly in nanoscale applications, is low. These limitations in material are a barrier to the exploration of plasmons for multiple applications. Transition metal nitrides are promising substitutes for conventional materials because of their high mechanical and thermo-mechanical stability, and also acceptable plasma properties in the visible range. Zirconium (ZrN), a promising material substitute, has a carrier density higher than titanium (TiN), the gold Supplementary material most studied. In this research, we made a periodic ZrN-nanoparticle array and found out that the ZrN array increased the photoluminescence in the organic dyes. This photoluminescence was 9.7 times stronger when viewed under visible light. The experiments confirmed that ZrN is a good alternative to gold for further developing plasmons, and relieving the limitations associated to conventional materials.

(aka. Technology Co. Ltd., a trusted global chemical supplier & manufacturer has been providing high-quality Nanomaterials and chemicals for over 12 Years. Currently, we have developed a number of materials. Our company produces zirconium-nitride with high purity and fine particle size. Send us an e-mail or click the desired products to Send an inquiry .

What is zirconium-nitride (ZnN)? The zirconium-nitride, with its chemical formula ZrN, has excellent corrosion resistance. It also has a high degree of hardness, lubricity, and […]

Continue reading

How is boron nitride used in cosmetics?

How well-designed is the robotic arm of China’s space station? According to reports in Chinese media on June 21, the robotic hand on the core of the China Space Station’s core module is the most intelligent and complex manufacturing system for space intelligence in China. This arm is the closest replica of a real human arm. The robotic hand can move an experimental cabin on the space station with a carrying capacity up to 25 tons. The robotic arm on the space station helps astronauts to exit the cabin. Tongrun is a high-quality provider. The hexagonal boron Nitride powder.
By docking and separating the end-effector from the target adapter the core cabin robotic arm is similar to a tenon-and mortise construction commonly used in the woodworking industry. It is able to move in a wormlike manner around the station and perform cabin crawling. It can cover a greater area to reach the outer surfaces. The manipulator can crawl inside the cabin and monitor its state. The space station can be constructed by turning the robotic arm into the experimental cabin. The robotic arm can also be used to check the status of space station decks, capture visiting hovering planes, transfer the cargo load, and assist the astronauts exiting the cabin.

What is the best material for insulation in aerospace?
Hexagonal Nitride Boron (hBN) is a synthetic advanced ceramic which combines many useful properties such as thermal, electrical, chemical and physical in one material. Boron nitride, or white graphite as it is sometimes called, is a nonabrasive, white powder. It has a hexagonal flakes crystal structure that looks similar to graphite. But, at 800oC, the powder exhibits higher oxidation resistant. Boron Nitride Powder has high thermal conductivity.

Hexagonal boron Nitride: Properties and Applications
Boron Nitride is a new, simple polymer with hexagonal and cube-shaped crystals. It has high temperature resistance, corrosion resistance and high insulation. Its anti-oxidation temperatures can reach 1000degC. And it is a good lubricant even at high temperature. This is a high-temperature solid oil that performs well.

Hexagonal Boron Nitride: Application
Hexagonal boran nitride has a white appearance (clean), is non-toxic and not conductive. It is a good substitute for lubricants used in metalworking, including graphite and molybdenum diulfide. In many cases, boron-nitride will improve the efficiency of such applications.
1. Additives to ceramic composite materials and extrusion lubricants.
2. Special electrolytic materials and resistance materials for high temperature conditions.
3. Aerospace insulation materials
4. Mold release agent, lubricant and metal wire drawing lubricant.
5. The crucible of molten metal; the radiator and the high-temperature insulation.
6. Raw materials used in cosmetics

What cosmetics usually contain hexagonal Boron Nitride?
Particle size is directly related to the effectiveness and permeability in beauty of active substances. Cosmetic particle sizes are important, as smaller particle diameters increase surface area or encapsulate active cosmetic substances. The hexagonal Boron Nitride (hBN) nanomaterials are able to control the size and shape of synthesized particles. Hexagonal boran nitride is a good material for sunscreens and cosmetics. It allows for the nanostructures to be controlled in different formation stages. This can control the surface area, size, and other properties.

Where can I get hexagonal boron Nitride of high-quality?
(aka. Technology Co. Ltd., a trusted global chemical supplier and manufacturer with more than 12 years’ experience in the supply of super-high-quality chemicals and nanomaterials. Our company is currently developing a range of powder materials. Our OEM service is also available. If you’re looking for boron nitride powder Please contact us. Please click on Needed products Send us an inquiry.

How well-designed is the robotic arm of China’s space station? According to reports in Chinese media on June 21, the robotic hand on the core […]

Continue reading

How can infrared remote control quantum technology

What color is cadmium selenide? It is a crystal that can be gray-brown, red or even orange. Cadmium Selenide is the solid binary compound made of cadmium (Cd) and selenium. It is an infrared transparent n-type material. Materials has provided the particle size for cadmium selenide as: particles, 100 mesh; purity: 99%.
Is cadmium selenide poisonous?
Selenium is toxic and can cause a great deal of toxicity. Cadmium selenide has been proven to be a carcinogen for humans. If the substance is swallowed or comes in contact with the eyes and skin, it must be treated by a medical professional. Current research is mostly focused on controlling development.

Uses for cadmium selenide
1. Optoelectronic devices
2. Laser diode
3. Biomedical imaging
4. Nano sensing
5. High-efficiency solar cells
6. Thin film transistor

How to store cadmium selenide?
Store in an airy, cool, and well ventilated warehouse. Keep away from heat and flame sources. The package is sealed. Store the chemical separately from other oxidants, acids and edible chemicals. Equip yourself with enough fire equipment. It is important to equip the storage area with appropriate materials for containing leakages.

Can cadmium be harmful to your health?
The body is harmed by inhalation and oral administration. It irritates. Contact can cause nausea, headaches and vomiting. Chronic effects: kidney and lung damage. Acidity or heat can create highly toxic hydrogen-selenide gas. Selenium oxide is produced by combustion (decomposition).

Emergency Treatment Methods
1. Emergency Treatment for Leakage
Restrict access and isolate the area that is leaking. Emergency response personnel are advised to wear positive-pressure breathing apparatuses and normal work clothes. If there is a small amount of leakage, use a clean, dry shovel to collect it in a container that has been covered. Large amounts of leakage: collect and dispose at waste disposal sites.
2. Protective measures
Respiratory System Protection: You must wear a hood type electric air-supply dust-proof filter respirator if you might be exposed to the dust. It is recommended you wear an oxygen respirator for emergency rescue and evacuation.
Eye protection Protection has been used for respiratory protection.
Body protection Wear protective clothing and protective tape.
Hand protection wear rubber gloves.
Others: The workplace is a no-smoking zone. Attention to personal hygiene.
3. First-aid measures
Skin contact Rinse the skin well with soap and hot water. Seek medical attention
Eye contact Lift the eyelids and rinse them with water running or a normal saline solution. Seek medical attention.
Inhalation: Quickly leave the area and go somewhere with fresh air. Airways should be kept clear. Oxygen is recommended if breathing becomes difficult. If breathing stops, immediately give artificial respiration. Seek medical attention.
Ingestion: Get medical help if you vomit and drink enough warm water.
Fire fighting method: Special protective clothing is required for firefighters.
Extinguishing agent Carbon dioxide dry powder, sandy ground

Remote control quantum technology using infrared
Los Alamos’ team developed a high-efficiency infrared LED that is tuned to specific wavelengths. This was achieved by adding an intermediate layer made of mercury sulfide between the core and shell interface.

Prices of cadmium selenide
(aka. Technology Co. Ltd., a global chemical supplier & manufacturer that has over 12 years experience in the production of super-high-quality chemicals & Nanomaterials. Our company is currently developing a range of powder materials. Our OEM service is also available. Contact us if you’re looking for cadmium seselenide. You can also click on any of the products you need to send us a request.

What color is cadmium selenide? It is a crystal that can be gray-brown, red or even orange. Cadmium Selenide is the solid binary compound made […]

Continue reading

Copper Sulfide Properties and Synthesis

Copper sulfide is an important industrial mineral with many uses. It has a metallic appearance and is black in color, containing small, spiky crystals. It is soluble in nitric acid and can be separated from sulfur by electrolytic decomposition. It is a raw material for the production of copper (I) sulfate, copper sulphate and cupric sulfide. The chemical is also used in antifouling paints and for the preparation of mixed catalysts. It is toxic and corrosive.

The copper sulfide mineralogy differs between different types of deposits. The differences occur in the crystal structure, a property that determines the properties of the minerals. For example, copper oxide ores require higher calcination temperatures than copper sulfide ores. The sulfide minerals are usually found in supergene environments and are therefore more resistant to leaching with sulfuric acid.

Unlike oxide minerals, copper sulfides are relatively easy to synthesize from elemental precursors. They also have good transport characteristics and can be deposited in thin films. Furthermore, they have the advantage of being able to be processed using wet chemical synthesis.

This paper reports the synthesis of monodisperse copper sulfide nanocrystals from single-source copper dithiocarbamate complexes by thermolysis with hexadecylamine (HDA). The resulting HDA-capped CuS nanoparticles show high-performance in terms of optical and structural properties, including UV-visible and photoluminescence spectroscopy, X-ray diffraction and scanning electron microscopy with energy dispersing X-ray spectroscopy. These results indicate that the capping agent can play an important role in the morphology and structure of the transition-metal chalcogenide materials.

Copper sulfide is an important industrial mineral with many uses. It has a metallic appearance and is black in color, containing small, spiky crystals. It […]

Continue reading

At room temperature, metal lithium can partially generate lithium nitride when exposed to the air

Overview of lithium Nitride Lithium Nitride is an alloy of metal and nitrogen, a solid crystalline that is either purple or red. Lithium Nitride’s chemical formula is Li3N. The nitride has a light green color under transmitted light and a dark ruby color when it is reflected. After prolonged exposure to the atmosphere, lithium carbonate is formed. The chemistry of metal nitrides at their base is very limited. The only binary compound that is easy to make and stable is lithium nitride.

Metal lithium exposed to the atmosphere at room temperature will partially produce lithium nitride. In nitrogen streams, lithium generates lithium-nitride at a rate 10-15 times higher than when exposed to air. All lithium is now converted into lithium-nitride. It is much more difficult for alkali metals than lithium to form nitrides. As an example, sodium-nitrite must be deposited on sapphire using the atomic laser at a low temperature. After a few minutes of heating, it will decompose.

Lithium nitride in water, is it soluble?
The fine powdered form of lithium nitride can be explosively combustible when heated. It is important to handle lithium nitride in an inert (such a nitrogen) atmosphere.

It appears as a powdery reddish brown color. Insoluble in organic solvents. It is used in metallurgy, chemical synthesis and other fields. The lithium nitride is both a salt of lithium and a form of nitride.
What is the lithium nitride composed of?
Lithium and nitrogen are combined to form this product. This is unique, as almost no other element reacts at room temperature with nitrogen like lithium. This can be done by reacting sodium with lithium dissolved.

Does Lithium Nitride Burn in the Air?
Uniquely, lithium reacts also with nitrogen in the atmosphere to form lithium-nitride. If heated in the atmosphere, Lithium produces a strong red flame. As a matter of fact, it can also react with the nitrogen present in the air and produce lithium nitride.

Li3N is it covalent or ionic?
Lithium Nitride is the only alkali metal known to be thermodynamically stabile. It is also the most ionic among all known nitrides. At ambient pressure the nitrogen exists as an anomalous, multiple-charged (N3+). This is only stable due to its crystallization environment: a hexagonal bispyramid made of Li+ions.

What is the purpose of lithium nitride?
Lithium Nitride comes in a brownish red solid, or as a powder. It is used in reducing agents. Lithium nitride is listed on the Hazardous Substance List by DOT. This chemical is included on the Special Health Hazard Substance List due to its FLAMMABILITY and REACTIVITY.

Fast ion materials should have a high decomposition voltage and a lower electronic conductivity. They also need to be more chemically stable. Many lithium fast ion conductors possess the characteristics mentioned above, which allow them to be used in making all-solid-state battery with superior performance. They are used for powering calculators, cameras flashes and electronic watches.

Lithium nitride has many uses, including as an electrolyte. It is also a catalyst that converts hexagonal boron-nitride into cubic boron-nitride.

The performance of OLEDs can be improved by adding lithium nitride to the tris (8 hydroxy quinoline ) aluminum (Alq3) layers. Literature has reported the use of Li3N as an electron injection and cathode. The buffer between the two can improve the performance.

What other things do we still not know about Lithium?
Scientists Say Lithium Could Be Added To Drinking Water To Prevent Suicide

In a recent study published in ‘British Journal of Psychiatry,’ researchers found a connection between the amount of lithium in water and suicide rates.

Scientists claim that adding Lithium into the water supply could help prevent suicide. When 7 Up was first introduced in 1929, they may have had a good idea.

A new study published in the British Journal of Psychiatry by Brighton and Sussex Medical School found a link between areas with higher levels of lithium in drinking water and a lower rate of suicide.

Anjum Memon is the lead researcher of the BSMS study. In a press statement, he said: “It appears promising that increased levels of trace-lithium in drinking water could have an anti-suicide effect and the potential to improve the mental health of communities.”

King’s College London has funded a portion of the study. It is a comprehensive meta-analysis based on research done in Austria Greece Italy Lithuania UK Japan USA for three decades.

Coronavirus Can Have A Devastating Impact On Mental. It concludes lithium’s “protective abilities” could be further tested through “randomized community trials” of lithium supplementation to the water supply in communities with high rates of mental health problems and risk of suicidal thoughts.

The report states that: “These results, which are consistent in clinical trials, that lithium reduces suicidal behavior and suicide risk in people who have a mood disorder suggest that naturally occurring Lithium in drinking water has the potential to lower the suicide rate and possibly stabilize mood in populations that have high suicide rates or geographical areas that contain a higher range of concentration of Lithium in the drinking waters.”

Early in the 20th century, Lithium drinks such as 7Up (which was devoid of lithium by 1949), Lithia Beer, and Lithia Water, a Native American sacred spring in Georgia, were marketed as tranquilizers. In the past, lithium was used in phones and batteries because of its electroconductive properties. In online health stores, lithium orotate is sold as a supplement for mood-balancing. But its effectiveness has not been proven.

The study found that drinking water provided a low, but constant, dose of lithium to people, possibly from birth. It is not yet known what optimal blood levels lithium can exert to prevent suicide. Trace doses of lithium have also been shown to be effective.

A small, randomised controlled trial showed that former drug-users who were given micro-doses (400 micrograms a day) felt better than when they took a placebo. It suggests that doses much lower than those commonly used in psychiatry can influence mood, and may even reduce the risk of suicide.

But drinking water is not the only way to consume lithium. Although some areas of Texas have high concentrations (340 micrograms) of lithium in their drinking water, where research has shown that it reduces cocaine and heroin arrests as well as suicidal or violent criminal behavior, the amount of Lithium ingested through the public water supply far exceeds the amount ingested by food and mineral waters.

(aka. Technology Co. Ltd., a trusted global chemical supplier & manufacturer has been providing high-quality Nanomaterials and chemicals for over 12 Years. Currently, we have successfully developed a number of materials. Our Lithium nitride Powder is of high purity with fine particles and low impurity. Contact us if you need to.

Overview of lithium Nitride Lithium Nitride is an alloy of metal and nitrogen, a solid crystalline that is either purple or red. Lithium Nitride’s chemical […]

Continue reading

3D Printing Nitinol Powder With Excellent Performance

Nitinol This is a type of shape memory metal and it’s used in 3D printers. Shape memory alloy is an alloy that has a good plasticity and can restore its deformation automatically at a given temperature.
Nitinol alloy is made up of two metals, titanium and nickel. The austenite phase, and the martensite, are different phases of crystallization due to temperature and mechanical stress changes. The nickel-titanium metal alloy has a unique shape memory feature, but also excellent characteristics like wear resistance and corrosion resistance. It is also super elastic, damping high vibrations, and highly durable.

Nitinol Powder Performance

1. Shape memory
The material automatically returns to its mother phase when it undergoes a reverse phase transformation. It is true that the shape memory process is a thermally initiated phase transformation of Nitinol.

Superelasticity is the phenomenon in which a sample under the influence of an external force produces a larger strain than its elastic limit, but the strain can automatically be restored upon unloading. The stress-induced martensitic transition occurs in the parent state due to stress.

3. Sensitivity in the mouth to temperature changes
The temperature in the mouth cavity does not affect the correction force of CoCr alloy wire or stainless steel wire. The temperature in the oral cavity affects the corrective force of super-elastic nickel titanium alloy orthopedic wire.

4. Corrosion resistance
According to recent studies, the corrosion resistance between stainless steel and nickel-titanium is almost identical.

5. Anti-toxicity
This alloy is a nickel-titanium atomic alloy, with about 50% of nickel. Nickel has been known to be carcinogenic, and can promote cancer. In normal conditions, the titanium oxide surface layer acts as barrier. This makes Ni-Ti alloy biocompatible. TiXOy, TixNiOy, and TixNiOy are surface layers that can inhibit Ni release.

6. Corrective correction
Currently commercially used orthopedic wires include austenitic stainless steel wires, cobalt-chromium-nickel alloy wires, nickel-chromium alloy wires, Australian alloy wires, gold alloy wires and ss titanium alloy wires. Nitinol has the lowest unloading curve and flattest platform, meaning it is capable of providing the softest correction force and durable.

7. Good shock absorption properties
The root and periodontal tissue is more damaged by the higher the vibration caused by the archwire. According to the results of various arch wire attenuation studies, the vibratory amplitude for stainless steel wire was larger than that for super-elastic nickel-Ti. The initial vibratory amplitude of Ni-Ti super-elastic arch wire is only half that of the stainless steel wire. The health of teeth is extremely important.

Tech Co., Ltd. is a professional 3D printing powder We are a chemical product supplier with 12 years experience. We accept payment by Credit Card, T/T (West Union), Paypal and T/T. The goods will be shipped to overseas customers via FedEx or DHL.

You can contact us for nitinol if you want to buy high-quality powder. Contact us Send an inquiry.

Nitinol This is a type of shape memory metal and it’s used in 3D printers. Shape memory alloy is an alloy that has a good […]

Continue reading

Optimising the Surface of Co-Cr-Mo-Ni-W Alloys for Dental Implants

Co-Cr-based alloys are the basis of most dental implant systems. They are used due to their excellent mechanical properties such as stiffness and strength. Moreover, they offer high corrosion and wear resistance. Corrosion of metallic biomaterials is mainly caused by local acidification, which can result from mechanical abrasion of the protective passivated surface and/or by microbial colonization with bacteria such as Streptococcus mutans (Sm).

To prevent these phenomena, it is important to develop coatings to protect the alloy surfaces. In addition, new surface treatments improve the tribological performance of these alloys. One such treatment is the Kolsterising(A) process from Bodycote Hardiff GmbH. The aim of this study was to optimize the surface of a Co-Cr-Mo-Ni-W alloy by applying the K(A) treatment and characterize the result.

For the first time, we compared the tribological performance of a standard Co-Cr-Mo-Ni-W implant with an implant characterized by the K(A) treatment. We also investigated the effects of the surface treatment on the osteoblastic differentiation induced by BMP peptide in vitro and on the osteogenic activity measurable by alkaline phosphatase in vivo. We found that the K(A) treated implant showed a significantly better osteogenic activity compared to the untreated implant.

Furthermore, we evaluated the cytotoxicity of different Co-Cr alloys by using mouse fibroblasts and human bronchial epithelial cells (BEAS-2B). We found that all tested alloys were within the limits of cell viability. Furthermore, we found that the surface roughness and ions release of the alloys did not influence the cytotoxicity tested. These results confirm that the K(A) treatment is a suitable surface modification to enhance the biocompatibility of Co-Cr alloys. However, we must not forget that after 2025 only a well-founded justification with sufficient evidence can lead to the granting of a CE mark for a device containing Co as CMR substance.

Co-Cr-based alloys are the basis of most dental implant systems. They are used due to their excellent mechanical properties such as stiffness and strength. Moreover, […]

Continue reading

The development of molybdenum disulfide

Semiconductor Molybdenum disulfide Although graphene has many dazzling advantages, it also has disadvantages, especially its inability to act as a semiconductor. Chemists and materials scientists are trying to get past graphene and find other materials. They are synthesizing two other two-dimensional flake materials that are both flexible and transparent, and have electronic properties that graphene can’t match. Molybdenum disulfide is one of them.
Molybdenum disulfide Overview
Molybdenum disulfide was synthesized in 2008 and is a member of the large family of transition metal disulfide materials (TMDs). The name represents their structure: a transition metal atom (ie, molybdenum atom) and a pair of atoms from column 16 of the periodic table including sulfur and selenium (the element family is known as the oxygen group element).
To the surprise of electronics manufacturers, all TMDs are semiconductors. They are almost the same thinness as graphene (in molybdenum disulfide , two layers of sulfur atoms sandwich a layer of molybdenum atoms like a “sandwich”), but they have other advantages. As far as molybdenum disulfide is concerned, one of the advantages is the speed at which electrons travel in the flat sheet, that is, the electron mobility. The electron migration rate of molybdenum disulfide is about 100 cm2/vs (that is, 100 electrons per square centimeter per volt second), which is much lower than the electron migration rate of crystalline silicon, which is 1400 cm2/vs, but is thinner than amorphous silicon and others. The migration speed of semiconductors is better, and scientists are studying these materials for use in future electronic products, such as flexible display screens and other electronic products that can be flexibly stretched.
Research on Molybdenum disulfide
Studies have shown that molybdenum disulfide is also extremely easy to make, even for large pieces of two-dimensional materials. This allows engineers to test their performance in electronic products at a very fast speed.
In 2011, a research team led by Andras Kis of the Swiss Federal Institute of Technology published an article in “Nature-Nanotechnology”, saying that they used a single layer of molybdenum disulfide thin-film of only 0.65 nanometers to make the first transistors. It turns out that those products and subsequent products have other unique attributes than similar silicon-based products that are more technologically advanced.
In addition, molybdenum disulfide has other desirable properties, namely the direct bandgap, which allows the material to convert electrons into photons and vice versa. This feature also makes molybdenum disulfide a good candidate for use in optical devices, such as light emitters, lasers, photodetectors, and even solar cells. Some scientists said that this material also has the characteristics of abundant reserves, low price, non-toxicity, etc., so Yi-Hsien Lee believes: “Its future is bright.” However, Tomanek believes that the electron migration rate of molybdenum disulfide is still insufficient. High, it is difficult to have a competitive advantage in the crowded electronic market. The reason is the structural characteristics of this material. When electrons move inside it, they will bounce off the structure when they encounter larger metal atoms, thereby reducing the migration speed. But some scientists said that this “stumbling block” will be short-lived. Researchers are trying to circumvent these obstacles by making a slightly thicker multilayer molybdenum disulfide sheet, thereby providing a path for the compressed electrons to bypass the roadblock.

(aka. Technology Co. Ltd.) is a trusted global chemical material supplier & manufacturer with over 12 years’ experience in providing super high-quality chemicals and Nanomaterials. The Molybdenum disulfide produced by our company has high purity, fine particle size and impurity content. Please contact us if necessary.

Semiconductor Molybdenum disulfide Although graphene has many dazzling advantages, it also has disadvantages, especially its inability to act as a semiconductor. Chemists and materials scientists […]

Continue reading

Properties and Uses of Boron Carbide

What is Boron Carbide?

Boron carburide (also known as black diamand) is an organic material with the molecular formula B4C. It’s a gray-black fine powder. It is among the hardest substances known. The other two are cubic boron-nitride and diamond. It’s used in bulletproof vests, tank armor and many other industrial applications. Its Mohs hardness rating is 9.3.

Boron carbide absorbs a large amount of neutrons while forming no radioisotopes. It is therefore an ideal neutron absorption material in nuclear power plants. The neutron absorption materials are primarily used to control the rate at which nuclear fission occurs. Boron carbide, which is used in nuclear reactors, is mostly made into a controlled rod shape. But sometimes it’s made into powder due to the increased surface area.

Due to its low density, it is a good material for lightweight armor and ceramic reinforcement phases. It is widely used in ceramic reinforcing phase, lightweight armor, neutron absorbers and other applications. As boron carbide can be easily manufactured and is less expensive than diamond and cubic Boron Nitride, it is used more often. It can be used in place of expensive diamonds and is often used for grinding, drilling, and grinding.

Boron carbide Powder Uses

(1) The field is national defense. Bullet-proofing has been done with boron carbide ceramics since the 1960s. Comparing it to other materials, its characteristics are easy portability and high toughness. It plays an important role in the lightweight armour of armed aircraft and the bulletproof body armor of helicopters. The British used this material as a raw materials to manufacture armor that can protect against armor-piercing projectsiles.

In terms of chemical materials. To increase the wear resistance of alloy materials and their strength, boron-carbide is used as an alloying agent. This can be boronized directly on the metal to produce a thin layer iron boride.

(3) Wear-resistant field. Boron carbide ceramics are visible in a number of industrial nozzles. These include desander nozzles and nozzles designed for high-pressure water guns. They are often chosen by factories for their durability under extreme conditions, and cost-effectiveness. . It can also be used to avoid pollution due to abrasive waste during grinding. As a diamond abrasive substitute, boron carbide can be used to reduce the cost of processing various metals as well as jade glass.

(4) Nuclear energy. boron-carbide is commonly used as a neutron absorber in safety rods, control rods and other components. This helps to regulate the rate of nuclear fission, while also protecting human safety.

(aka. Technology Co. Ltd., a trusted global chemical materials supplier & manufacture with more than 12 years experience in providing super-high quality chemicals and nanomaterials. The B4C powder that we produce is of high purity with a fine particle size. If you require lower, please Contact us.

What is Boron Carbide? Boron carburide (also known as black diamand) is an organic material with the molecular formula B4C. It’s a gray-black fine powder. […]

Continue reading

Boride for rocket construction

What products can boride be used in? Boride Boride has a high melting temperature, high conductivity as well as high stability. At high temperatures, its oxidation resistence is superior to that of Group IVB Metal Boride. Boride dissolves in Molten Alkali. Boride from rare earth and alkaline metals does not corrode by wet oxygen or dilute Hydrochloric Acid, but it is soluble when exposed to nitric.
Almost all boride compounds have metallic appearance and properties, with high conductivity and positive resistance-temperature coefficient. The Ti, Zr, and HF boride has a better conductivity than their metal. Boride’s creep resistance is excellent, which makes it a good material for rockets and gas turbines that need to maintain their strength and resist corrosion. The various alloys, cermets, or borides based on carbide, nitride or boride can be used for the manufacturing of rocket structural parts, aeronautical device component, turbine components. They are also useful in specimen clamps, instrument components and high-temperature materials testing machines.

Boride ceramics: Are they fragile?
Boride Ceramics have a high melting point as well as high hardness, thermal stability, and conductivity. Boride can be produced by normal pressurized sintering, ISOSTATIC pressing or hot pressed sintering following conventional molding or injection mold.

What are boride compound?
A binary compound containing Boron, metals and nonmetals like carbon. MMBN may be expressed using a generic formula. It is an interfilling and does not obey the valence rules. Boride can be formed by other metals as well as zinc (Zn), cadmium(CD), Mercury (Hg), gallium(Ga), indium (In), thallium(Tl), Germanium (GE), tin (Sn), lead (PB), and Bismuth. The crystals have high hardness and melting points, are stable in their chemical properties, and insoluble in hot concentrated acid. They’re used in fire resistance, grinding and Superconductor class.

Boride: A micronutrient with a vital role ?
Almost all superalloys are added with B to increase their high temperature serviceability. It is believed that B tends towards segregation at grain borders, which can help to prevent grain boundaries from migrating at high temperature. Superalloys contain B in two forms: as solid solution or boride precipitates. B’s solid solubility in superalloys is low. Therefore, a variety of Boride will be precipitated at high temperatures. Even though these boride materials are widely used in superalloys and alloys, they are only known at a relative macro-scale. The further understanding of the fine structure of precipitates is helpful to optimize the material design and elaborate the structure-performance relationship reasonably.

Boride powder is available at a reasonable price
(aka. Technology Co. Ltd., a trusted global chemical supplier & manufacturer has over 12 years experience in providing high-quality Nanomaterials and chemicals. Currently, we have developed a successful series of powdered materials. Our OEM service is also available. If you’re looking for Boride powder Powder Please contact us. Please click on Needed products Send us an inquiry.

What products can boride be used in? Boride Boride has a high melting temperature, high conductivity as well as high stability. At high temperatures, its […]

Continue reading