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.

Do you know what indium phosphide does?

What is InP’s full name? The full name is indium phosphide . Indium phosphide (also known as pitch luster) is a chemical material, consisting of dark gray crystals. It is made from metallic indium and phosphorus red in a tube of quartz and used as semiconductor material. Indium-phosphorus binary semiconductor InP is composed of both indium, and phosphorus. It has the same face-centered cubic (zinc-blende) crystal structure as GaAs, and most IIIV semiconductors.

Indium phosphide This binary semiconductor material is composed of phosphorus, indium. It has a face centered cubic (galena), crystal structure that is similar to gallium-arsenide, and most third and fifth group semiconductors.
InP has a faster electron speed than silicon or gallium arsenide, which are more commonly used as semiconductors.

Is InP ionic?
Consider GaAs, or InP. Both are classified as ions. It is possible to say that solid electronic structures are primarily composed of cations or anions.

What is a semiconductor?
Any crystalline solid which has an intermediate conductivity (between a conductor, and an insulator) is referred to as a semiconductor. Semiconductors play a role in many electronic devices including transistors, diodes and integrated circuits.

How is InP powder made?
Indium phosphide can be produced through the reaction of white and indium. White phosphorus, which is a translucent solid with a waxy consistency that turns yellow in the presence of light, is orange-colored crystalline indium. Indium phosphide may be obtained in the following ways: Both elements must be stored at 400degC.
Thermal synthesis is used to combine the elements purified by the thermal synthesis of the compound trialkylindium with phosphine. This occurs under high pressure and temperature.
To obtain the surface of nanocrystals made from indium-phosphide, an electrochemical etching procedure was carried out before observation under a scanning microscope.

Application of indium-phosphide (InP) powder
Indium phosphide circuits are used to produce high-power, high-frequency electronics because the electron speed of indium phosphide semiconductors is faster than that in silicon and gallium arsenide. Indium phosphide’s direct bandgap makes it suitable for optoelectronic engineers components such as Laser Diodes. Indium-phosphide substrates are also used for optoelectronic components based on indium gallium arsenide.
INP is the base for three primary application areas including optoelectronics components, high speed electronic devices, and solar devices. INP components can also be used to open a range of electromagnetic spectrum between microwaves and infrared. The terahertz range is not fully used but it contains a combination of high-frequency electromagnetic waves and high optical properties.

Storage of InP powder
Moist clusters have an impact on the dispersion effect and the effectiveness of InP powder. Indium phosphide inP powder must be kept in a sealed vacuum package in a cool, dry environment. Indium-phosphide shouldn’t be exposed to the air. In addition, InP powder shouldn’t be used under any pressure.

The price is InP powder
(aka. Technology Co. Ltd., a global chemical materials supplier and manufacturer with more than 12 years of experience in providing high-quality Nanomaterials and chemicals. Our company is currently developing a range of powder materials. Our OEM service is also available. You will find what you need. Indium phosphide Please contact us. Please click on Needed products Send us an inquiry.

What is InP’s full name? The full name is indium phosphide . Indium phosphide (also known as pitch luster) is a chemical material, consisting of […]

Molybdenum Silicide

molybdenum silicide (MoSi2) is an intermetallic compound with moderate density and melting point of 2030 degC. It is electrically conductive and forms a passivation layer of silicon dioxide at high temperatures, which prevents further oxidation. It also exhibits good corrosion resistance and high toughness. The combination of these properties make MoSi2 an attractive material for use in electric furnaces used in laboratories and production environment in glass, steel, electronics and ceramics industries.

MoSi2 is gray square crystal powder insoluble in common mineral acids including aqua regia but soluble in mixture acid of nitric and hydrofluoric acid. The atomic radius of Mo and Si is comparable and their electronegativities are similar, resulting in close electronic interactions. It is also stable at high temperatures.

A new method for forming metal silicides on gated polycrystalline silicon (poly-Si) field emission cathodes has been developed. The Mo silicide coatings show superior performance compared to pure poly-Si emitters in both field emission current and stability.

The formation of the protective layer is highly dependent on the technology and environmental conditions. Chemical reactions of the metal components in contact with MoSi2 produce silicides and can lead to a gradual degradation of the protective coating. Besides the reaction with molten metals, the presence of gaseous noble gases (argon, nitrogen) disturbs the chemical equilibrium and accelerates the degradation of the MoSi2 layer. In addition, vapors of dust particles from molten metals react with the protective layer. For these reasons, the performance of a MoSi2 protective coating is limited in applications requiring high temperatures.

molybdenum silicide (MoSi2) is an intermetallic compound with moderate density and melting point of 2030 degC. It is electrically conductive and forms a passivation layer […]

Platinum Nitrate Solution

platinum nitrate is one of the raw materials for making palladium-containing compounds, heterogeneous catalysts and surface coatings for material surfaces. It is also indispensable for purifying automobile motorcycle exhaust catalyst and has broad market prospects. However, platinum nitrate solution is easily susceptible to hydrolysis which leads progressively from an increase in apparent viscosity to gel formation and in extreme cases to precipitation of orange Pt (IV) oxide. This makes it difficult to prepare the platinum nitrate solution required for processing the noble metal compound industry and other homogeneous catalyst industries as well as for exhaust gas treatment, combustion and petrochemical catalysts.

To overcome this problem the present invention provides a method for easily producing a platinum nitrate soln. that exists stably for one month or more. The method comprises adding nitric acid having a specified concn. to a hexahydroxopotassium platinum soln. in an amount equivalent to about 8 times (mol) the amt. of the hydroxyplatinic acid in order to reach this desired concentration.

After the hydroxyplatinic acid is perfectly dissolved by heating, nitric acid is added in an amount equal to about 8 times the amt. of the hydroxyplatinic acids in order to obtain a platinum nitrate solution that exists stably for a long period of time.

The nitric acid is also used to prevent platinum from precipitating in the form of black particles during the process. In addition, the nitric acid is also used to control the temperature of the solution. This helps to ensure that the solution is not contaminated with other substances such as salts, organic compounds or phenolic compounds.

platinum nitrate is one of the raw materials for making palladium-containing compounds, heterogeneous catalysts and surface coatings for material surfaces. It is also indispensable for […]

Properties and Uses of Molybdenum Disilicide

What is molybdenum Disilicide (Molybdenum Dioxide)?

The crystal structure of Molybdenum Disilicide is tetragonal. It is an interphase with the highest silicon contents in the MoSi binary alloy. It is a Dalton-intermetallic compound of a fixed composition. It is gray and has a metallic sheen. It is highly conductive, both electrically and thermally. It also has excellent mechanical characteristics and resistance to high temperatures. It has a higher performance than silicon carbide and can be used to heat a metal substrate. The first application of this material was to protect metal surfaces from corrosion and heat at high temperatures. It was used to coat gas turbine components, jet engine combustion rooms and missile combustion cells. Today, molybdenum-disilicide is used primarily in high temperature heating elements and thermocouple tubes.

Molybdenum diilicide properties

Crystallographic properties It is a tetragonal crystalline structure, with a densities of 5,9-6.3g/cm. Pure molybdenum is stable at high temperatures and does not phase change until it reaches its melting point. Changes in crystallographic property will not affect the temperature change within its maximum effective temperature range.

Thermodynamic properties include melting points up to 2030degC and high thermal conductivity. These are the necessary characteristics for high-temperature heaters or thermocouple tubes. They can also increase their thermal shock resistance.

This material has excellent magnetic properties, including low resistivity (2×10-5O*cm), a high electric rate and a good conductor. This material can be used to manufacture heating elements, thermocouple electroelectrodes or temperature protection tubes.

Mechanical properties are: the tensile and bending strengths are similar to those of metals, as are some oxide materials such as Al2O3. The hardness and compression strength are higher. The biggest disadvantage of metals is their poor impact resistance, which makes them brittle materials like general ceramics. To make cermet, the metal bond is added to the ceramic material in a very small amount, while ensuring that it does not affect its high temperature oxidation resistance.

Chemical state: It is acidic. It is not soluble in most acids or alkalis. MoSi2 is most stable refractory material, with the exception of oxide ceramics. MoSi2 has a lower oxidation stability below 1700degC because silicon is only 1% solubilized in molybdenum (1800degC).

Molybdenum Disilicide does not resist high temperature oxidation. However, at temperatures between 1300 and 1600degC a glassy layer of dense silicon dioxide forms on the surface, which inhibits continued oxidation. MoSi2 has a high temperature range and is stable not only in an oxidizing medium, but can also be used in reducing media, neutral atmospheres, inert atmospheres and in some very strong corrosive environments. In N2, SO2, CO2, etc., the maximum temperature can be 1600.

Uses for molybdenum Disilicide

Molybdenum Disilicide is the silicide with the highest industrial production. Its main products include high-temperature heating tubes and thermocouple protector tubes.

(aka. Technology Co. Ltd., a trusted global chemical materials supplier & manufacture with more than 12 years experience in providing high quality nanomaterials and chemicals. The moSi2 powder that we produce is of high purity with a fine particle size. If you need lower, please Contact us.

What is molybdenum Disilicide (Molybdenum Dioxide)? The crystal structure of Molybdenum Disilicide is tetragonal. It is an interphase with the highest silicon contents in the […]

Zinc Stearate Manufacturing Process

In cosmetics, zinc stearate is used as a lubricant to improve the feel of powder cosmetics, such as eye lines and mascaras. It can also be found in makeup products such as foundations and lipsticks. The manufacturing process of this product involves reacting stearic acid with zinc hydroxide in an aqueous solution under stirring and heating. The resulting precipitate is then rinsed, filtered and dried to form the final product.

Zinc stearate is a solid, odorless compound with high melting point. It is combustible and a fire hazard when exposed to heat or flame. It is also very soluble in water. Acute toxicity studies with fish (Daphnia magna) have shown no effects at nominal concentrations up to three orders of magnitude higher than its water solubility limit. The chemical is a skin irritant, but does not cause acute systemic effects.

Laboratory animals exposed to zinc stearate ingestion experienced moderate acute gastrointestinal irritation, but no adverse effects were observed on their general growth or development. When 50 mg of the substance suspended in 1 mL of water was injected into the lungs of six rats and into the peritoneum of six guinea pigs, all died as a result of severe pulmonary edema. The compound also caused granulomata of the peritoneum in guinea pigs. These animals died within 24 hours of injection, but no permanent fibrosis was evident. Metallic soaps are referred to as driers because they accelerate the oxidation reaction that is associated with the drying of oils. Cobalt, manganese, iron, lead and calcium soaps are known as primary driers, while zinc and ziroconium soaps do not promote drying on their own and are considered auxilliary driers.

In cosmetics, zinc stearate is used as a lubricant to improve the feel of powder cosmetics, such as eye lines and mascaras. It can also […]

The Property And Application of Bismuth Powder

What property does bismuth Powder have?

Bismuth powder Metal bismuth is a metal with a silvery white (pink) to light yellow luster. It has brittle and easily crushed properties. Metal bismuth, a metal that has a brittle and easily broken luster of silvery white to light yellow, is a metal that is stable in the air.Bismuth occurs in nature as oxide bismuth dioxide (Bi2O3) or sulfide-bismuthite. Bismuth Loess is created by the oxidation process of bismuthite, bismuth, and other bismuthcontaining sulfides. Because bismuth’s melting point is low, it can easily be reduced with charcoal.

When bismuth is heated to a temperature above the melting point it will burn, emitting a light-blue flame and bismuthtrioxide. Bismuth powder can be combined when red hot with sulfur or halogen. Bismuth powder does not dissolve in water, and it is also insoluble in nonoxidizing acids like hydrochloric. Even concentrated sulfuric and concentrated hydrochloric acids only react slightly upon heating. But it is soluble when heated in aqua regia, and concentrated nitric.

What is the application of bismuth?

1. Metallurgical additives
A small amount bismuth can be added to steel to improve the performance. Bismuth can also be added to malleable casting iron to give it properties similar to stainless steel.

2. Bi-base low melting point alloy
For cold stamping, thin metal plates are formed using an alloy of bismuth and tin. The alloy can be reused many times because the temperature is no lower than that of the steel mould.
Electric appliances, safety device, automatic device indicators, etc., are all made from a low melting point alloy composed of aluminum powder, tin cadmium and bismuth.

3. Medical treatment
The astringent action of bismuth medicines is used for surgery to treat hemostasis and trauma.

4. Application of Bismuth in Flame Retardant
Bi203, among flame retardant chemicals, has a greater effect than Sb203. It is also non-toxic and safe. The smoke that is produced during combustion can be extremely harmful and has no effect on the stability of flame retardant products.

5. Use of Bismuth in Chemical Industry
Bismuth Yellow pigment is made from a combination of bismuth vanadate and bismuth mollybdate. It can be used as a substitute for lead, cadmium or other pigments. It has excellent surface resistance against chemical corrosion. It also has a strong adhesion, bright color and a good surface. It is difficult to fade and fall off.

6. Electronic ceramics
Electronic ceramics with bismuth powder are used as a scintillation material in devices like nuclear radiation sensors, x ray level scanners.

7. Semiconductor
Air conditioners and refrigerators are assembled using high-purity powders of bismuth combined with tellurium and other elements such as selenium and antimony. Artificial bismuth can be used as a photoresistor in photovoltaics devices, and to increase the sensitivity on the visible spectrum.

Tech Co., Ltd. is a professional Bismuth powder We have over 12 year experience in research and development of chemical products. You can contact us for high quality Bismuth Powder. Contact us Send an inquiry.

What property does bismuth Powder have? Bismuth powder Metal bismuth is a metal with a silvery white (pink) to light yellow luster. It has brittle […]

Amorphous Boron Powder Properties And Applications

Boron Powder can also be called monomer. Both the mass and volume calorific values are high for boron. Boron is a gray-brown powder with active chemical properties. However, it is not stable at normal room temperature and will oxidize when temperatures reach 300 degrees Celsius.

Boron Powder Properties

Boron is either a silver-gray or black solid. Crystal boron, which is black in color, has the second highest hardness of diamonds and a brittle surface texture. Borax is a flux that can be used to weld and melt metal oxides.
Boron’s weight is only second to beryllium in terms of volumetric heat. Boron is slightly soluble but not soluble in water. Amorphous boron powder is chemically reactive, and can be combined with air to form explosive mixtures.

Elemental Boron is a powdery black or dark brown color. When the boron is oxidized, a diboron-trioxide film forms. This prevents boron to continue oxidizing. Boron powder is resistant to hydrochloric and hydrofluoric acids and can react with fluorine.

Boron Powder Applications

Boron is used for metal smelting and ceramic manufacturing. It’s also widely used in the chemical, nuclear, and electronic industries. These are the applications of boron:

1. Boron powders can be used to produce boron compounds and fibers. They are also important raw materials in the production high-purity boron halid.

2. Boron compound is used as a gas absorber in the smelting process of special alloyed steels or molten metals;

3. Boron powder is used in rocket fuel to provide high energy.

4. The electronic industry uses a powdered form of Boron as the ignition electrode for the ignition tubes;

5. Boron can be used to replace precious or rare metals.

6. Boron is used in the atomic energy sector as a protection material and for the control rod of the atomic power reactor.

Tech Co., Ltd. is a professional Boride Powdersupplier, with more than 12 years’ experience in chemical product research and design. We accept payment by Credit Card, T/T (wire transfer), West Union, Paypal and T/T. The goods will be shipped to overseas customers via FedEx or DHL.

If you need high quality amorphous boran powder, feel free to contact us or send an inquiry.

Boron Powder can also be called monomer. Both the mass and volume calorific values are high for boron. Boron is a gray-brown powder with active […]

The Main Characteristics of Silicon Nitride

Silicon Nitride application:

Silicon nitride has many unique characteristics and is an important engineering ceramic. Silicon nitride has excellent mechanical properties at high temperatures. These include low density, high flexural and tensile strength, high modulus elasticity, fracture toughness and high wear resistance. The material is also very strong and hard. Material also exhibits excellent thermal properties. It has minimal temperature-induced shrinkage and can resist thermal shock (rapid temperature changes). Finaly, silicon nitride is a material with excellent chemical properties. It can withstand most acids and alkalis as well as corrosive gases and liquid metals.

Silicon Nitride – Main Characteristics

It is also a good thermal conductor, which makes it a great material for demanding industrial uses. Thermal conductivity is a material’s inherent ability to transfer or conduct energy. The heat transfer coefficient determines whether engineering materials are suitable for applications requiring extreme temperatures. The low thermal conductivity of silicon nitride is due to its unique chemical and microstructure composition.

The material is extremely stable due to the strong atomic bonds. It is resistant to both acid and alkaline corrosion at room temperatures. This is especially important when considering the long-term use of silicon nitride in the human body. The corrosion resistance of a material is due to an oxide coating on its surface. The same corrosion resistance was observed in tests where silicon nitride had been placed in hot gases and molten metallic salts. The formation of an oxide layer plays an important and complex role in determining the corrosion resistance.

The self-reinforced structure, high strength, toughness and other excellent properties of silicon nitride have made it a popular structural component in various industries.

Tech Co., Ltd. () has over 12 years of experience in the chemical product development and research. We accept payment by Credit Card, T/T (wire transfer), West Union, or Paypal. The goods will be shipped to overseas customers via FedEx or DHL.

Silicon Nitride application: Silicon nitride has many unique characteristics and is an important engineering ceramic. Silicon nitride has excellent mechanical properties at high temperatures. These […]

Silicon nitride synthesis method and forming processing

Silicon nitride The chemical formula is: The chemical formula of alumina is as follows:

3Si(s) + 2N2(g) -Si3N4(s)

This can be done with diimine.

SiCl4(l) + 6NH3(g) -Si(NH)2(s) + 4NH4Cl(s) (at 0 degC)
3Si(NH)2(s) -Si3N4(s) +N2(g) + 3H2(g) (at 1000 degC)

Or, use the carbothermal reduction to synthesize under an atmosphere of nitrogen at 1400-1450degC.

3SiO2(s) + 6 C(s) + 2N2(g) -Si3N4(s) + 6 CO(g)

In the 1950s the method of nitriding a silicon elemental powder was discovered. It was also the first method to mass produce silicon nitride. The silicon nitride powder will be impure if the quality of the raw silicon material used is poor.
The diamine method produces amorphous silicon nitride, which must be annealed in nitrogen at 1400-1500degC before it can become crystalline powder. Diamine decomposition is currently only relevant in the commercial production of Silicon Nitride.
The most cost-effective and easiest way of manufacturing silicon nitride is through the carbothermal reaction.
Electronic grade silicon nitride The film is made by either chemical vapor deposited or plasma enhanced chemical-vapor deposition:

3SiH4(g) + 4NH3(g) -Si3N4(s) + 12H2(g) 3SiCl4(g) + 4NH3(g) -Si3N4(s) + 12 HCl(g) 3SiCl2H2(g) + 4NH3(g) -Si3N4 (s) + 6 HCl(g) + 6H2(g)

Two methods are available to deposit Silicon Nitride on a Semiconductor Substrate:
1. Use low pressure chemical vaporization technology using a tube furnace, either vertically or horizontally.
2. The plasma-enhanced vapor deposition technique is used under vacuum conditions of relatively low temperature.
The unit cell parameter of silicon nitride is different than that of elemental Silicon. Dependant on the deposition technique, the silicon nitride generated film can either generate tension, or stress. Adjusting the deposition parameter is a great way to reduce tension, especially when using plasma enhanced chemical vapor technology.
To obtain silicon nitride, the first step is to prepare silica using the sol-gel process. Next, the silica containing ultrafine carbon particles will be processed with the carbothermal method of reduction, followed by nitridation. The ultrafine carbon particles are formed by the decomposition glucose at temperatures between 1200 and 1350degC. The reactions which are part of the synthesis can be:

The following are the results of SiO2(s), C(s), and SiO (g). 3 SiO g + 2N2 g + CO (g). Si3N4 (s) plus 3CO2 g or 3SiO g + 2N2 g + 3C(s).

Processing silicon nitride block
Silicon nitride As a granular product, it is difficult to work with. It can’t be heated higher than its melting point (1850degC) because silicon nitride would decompose to silicon and nitrogen. Hot press sintering is no longer acceptable. By adding binders or sintering aids, the powdered silicon nitride can be bonded to form a solid material. Due to the necessity of adding binders or other sintering aids to the material, impurities will be introduced. Another method to produce purer bulk material is spark plasma sintering. The compacted powder will be pulsed within a short period of time (a few seconds). This method works at temperatures between 1500degC and 1700degC. The temperature at which you want to obtain compact and dense lumps of silicon nitride.

(aka. Technology Co. Ltd., a trusted global chemical supplier & manufacturer has over 12 years experience in providing super-high-quality chemicals and nanomaterials. The silicon nitride Please note that the products produced by our company are of high purity and have low impurity. Please. Contact us if necessary.

Silicon nitride The chemical formula is: The chemical formula of alumina is as follows: 3Si(s) + 2N2(g) -Si3N4(s) This can be done with diimine. SiCl4(l) […]

Characteristics and applications of spherical alumina

Spherical alumina: characteristics
1. High filling: Due to its large particle diameter, and wide particle distribution, this product produces compounds of low viscosity.
2. High thermal conduction: The high filling density of the compound allows for a greater thermal conductivity as well as a faster heat dissipation compared to crystalline silicon.
3. Spherical shape reduces wear of machines such as kneading machines.

Application of spherical aluminum
1. Use as a ceramic material
Micropowder with a spherical shape has excellent properties for compression molding and silting, making it ideal for producing high-quality ceramic products.
2. It is used as a material for grinding and polishing
Using spherical aluminum oxide as a polishing material can help to avoid scratches.
3. It is used in the petrochemical industries
The petrochemical industries are putting more and more demands on the alumina carrier’s pore size distribution, and its pore structure. To control the particle size distribution, it is possible to adjust the spherical shape of the alumina powder by changing the particle size configuration.
4. Catalyst
The use of spherical aluminum as a catalyst directly can reduce abrasion while increasing the lifespan of the catalyst. This will lower the production costs.
5. For surface protective coating
Surface protection for machinery, tools, chemical pipelines, and equipment is achieved by spraying spherical powder particles. These can significantly improve surface hardness, corrosion and wear resistance.
6. Luminescent materials
Alumina powder spherical has a high density which reduces the scattering and loss of light.
7. Electronics industry
The excellent properties of spherical aluminum in terms of electrical, thermal, and mechanical properties make it a popular choice for electronic semiconductor packaging.

The excellent properties of spherical aluminum in terms of electrical, thermal, and mechanical properties make it a popular choice for electronic semiconductor packaging.

Tech Co., Ltd. () is an experienced spherical-alumina manufacturer with over 12 year experience in chemical product development and research. If you need high quality spherical aluminum please contact us or send an enquiry.

Spherical alumina: characteristics 1. High filling: Due to its large particle diameter, and wide particle distribution, this product produces compounds of low viscosity. 2. High […]

Recent articles