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Properties And Application of Titanium Carbide Based Cermet

Titanium carbide properties:

Titanium carbide This crystal is iron grey with a metallic shine. It is a metal-like substance with similar properties: high melting, boiling and hardness points. The thermal conductivity, electrical conductivity, and hardness are all excellent. It is superconducting at low temperatures. This substance can be used to make cermets as well as heat-resistant metals, antiwear materials, high temperature radiation materials and other high temperature vacuum devices.

Titanium Carbide Based Cermet Properties:

Titanium carbide is brittle by nature and can’t be used for engineering purposes. As a result, it is often used to reinforce composite materials and as a coating for material. Attention and application, as in the case of titanium-carbide-based cermets.

Titanium carbide based cermet (also known as cermet) is a heterogeneous material made of a metal or alloy phase TiC. It combines high strength, high toughness, wear resistance high temperature resistance oxidation resistant and chemical stability ceramics and metal.

Application and Use of Titanium Carbide Based Ceramic:

Cutting metal tools The new titanium-carbide-based cermet tool material has been developing rapidly over the past few years. It offers a very high level of performance, and the wear resistance is higher than normal cemented carbide when cut under identical conditions. Wear resistance in high-speed cuts is up to 8 times higher compared to YT14 cemented carbide. Titan carbide-based blades are now being made in various shapes and sizes, and used for a variety of finishing applications, including precision drilling holes, “turning instead” of grinding, and other finishing fields.

2.Aerospace industry: This TiC/Cu cermet, prepared using a high-temperature sintered infiltration framework process, has excellent ablation resistance. It can be used for the lining of rocket throats and as a guard plate material.

3.Others: This metal-based ceramic lining can be used for anti-corrosion pipelines for transporting petroleum, chemical and semi-products. Also, it can be used for anti-wear pipelines for mines and beneficiation plants, as well as slurry pipelines. The lining is also suitable for use in water pipes with muddy waters…

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Titanium carbide properties: Titanium carbide This crystal is iron grey with a metallic shine. It is a metal-like substance with similar properties: high melting, boiling […]

The Properties And Application of Molybdenum Carbide

What exactly is molybdenum carbide?
Molybdenum Carbide has the chemical formula MoC. Its molecular weight 107.95.

The material is known for its high melting and hardness points, thermal and mechanical stability and good corrosion resistance.

Molybdenum Carbide has a hexagonal gray crystal. It has a high melting and hardness point, as well as good mechanical and thermal stability. The melting temperature is 2692degC. It is insoluble in water, lye and sulfuric acid.

Molybdenum Carbide:

1. Molybdenum Alloy

TZM is the alloy with the highest strength and most comprehensive properties. The United States uses TZM for turbine disks, which account for 15 percent of the total molybdenum. In my country, we produce no less than 22 types of molybdenum material. This includes TZM molybdenum. Early 1990s, the output of my country in molybdenum alloys and molybdenum was around 200 tons.
TZM alloys with TZC molybdenum have better mechanical properties than pure Molybdenum. They are used for high-tech parts, such as molds, and other structural components. In the early 20th century, my nation successfully produced them as thermally perforated seamless steel pipe plugs. The sintered molybdenum plugged made using powder metallurgy technology can reduce raw material consumption (50%) and improve the average service life of 1.5 to 2x.

The seamless tube of molybdenum and rhenium (containing 50% Re), has excellent performance, and can be used close to the melting point. It can also be used to make the brackets, rings, grids, and other parts for thermowell and electronic tube cathodes.

It is easier to process molybdenum than tungsten. The plates, strips and foils are used to make tubes, rods wires profiles etc. These are used to make electronic tubes (grids), electric light source parts (support material), metal processing tool (die-casting dies, extrusion dies forging dies perforated plugs liquid metal screens), turbine discs etc. Used in many components.

2. Alloying components of steel

Molybdenum is an alloying metal that, when combined with nickel, chromium and other elements, can help reduce the embrittlement of alloy steels. The use of molybdenum in high-speed alloys to replace the tungsten is a leading solution for the shortage in tungsten. Molybdenum, according to calculations has twice the capacity of tungsten. The steel that contains 18% tungsten is replaced by steel that contains 9% molybdenum. Molybdenum’s role in stainless steel is to enhance corrosion resistance, strength and weldability. You can see that molybdenum has a major role to play in the steel sector.

3. Other apps

Molybdenum exhibits a very low vapour pressure when working at the pressure and temperature of the vacuum oven. Molybdenum is the material that causes the least contamination to the materials and workpieces inside the vacuum furnace.
Due to its high strength, molybdenum makes the ideal electrode in glass manufacturing. It is also the ideal processing equipment and electrode during rapid heating. Because molybdenum is chemically incompatible with most glass components, it will not produce harmful color changes due to the small amount of molybdenum that may be dissolved in a glass melting tank. As a heating electrode in a glass melt furnace, it can last up to 3 or 5 years.

4. Emerging applications

Molybdenum diilicide (MoSi2) is a composite material that can be used to overcome the low ductility, high oxidation and low ductility problems.

Molybdenum Carbide has excellent properties in terms of electrical, mechanical, and thermal properties. It is widely used as a composite material in the advanced composite field.

Tech Co., Ltd. () is an expert in Molybdenum Carbide, and has over 12 years’ experience in research and product development. You can contact us to send an inquiry if you are interested in high-quality Molybdenum Carbide.

What exactly is molybdenum carbide? Molybdenum Carbide has the chemical formula MoC. Its molecular weight 107.95. The material is known for its high melting and […]

Modified Artificial Graphite: an Excellent Anode Material for Lithium Batteries

Graphite Graphite can be classified into artificial graphite Graphite or natural graphite. Although both graphite powders have similar properties in terms of physical and chemical structure, their applications are very different. Some researchers have not noticed the differences between the two, and called it graphite as a whole in several studies. The resulting confusion between the two materials has resulted in many errors of judgment and decision-making, which have led to a waste of resources and financial losses. This article discusses the structure, composition and performances of both natural and synthetic graphite.

Classification of Graphite and its Characteristics

Natural graphite is produced by the transformation carbon-rich organic material under long-term geological conditions of high temperatures and high pressure. Nature’s crystallization. The crystal form of graphite determines the process characteristics. Minerals of varying crystalline forms have different industrial value and uses. Natural graphite comes in different forms. The industry divides graphite according to its crystalline form. My country has two major categories: flake graphite, and cryptocrystalline.

Crystallography uses polycrystals to describe the structure of graphite. Artificial graphite comes in many different forms, each with a unique production process. All graphite materials that are obtained through high-temperature graphitization and organic carbonization can be called artificial graphite. These include carbon (graphite), carbon fiber, foam graphite etc. In the narrowest sense, the term artificial graphite refers to raw carbonaceous materials (petroleum, pitch, etc.). With low impurity contents as aggregates, coal pitches, etc. After batching, kneading molding and carbonization (industrially known as it is a block-solid material obtained through baking) and graphitization. Examples include graphite electrode, hot isostatic pressed graphite etc. Today, we will look at the uses and production processes of artificial graphite.

Artificial Graphite: Production and Application Process

Anode materials are one of the key components of lithium-ion battery, and they play a major role in energy efficiency and cycle stability. The development of science has led to the emergence of new negative electrodes materials. These materials include graphene and carbon nanotubes. They also come in silicon-based, tinbased, tungstenbased, etc. but their large quantity is limited due to a variety problems. At present, graphite carbon materials dominate the market for anode materials.

Artificial graphite is less crystallized, has a lower graphitization level (=93%) than natural graphite and has some disordered structure. Artificial graphite also has a surface that is not smooth and porous. It also has a high specific surface. It decomposes and reacts easily with the electrodelyte. Therefore, its initial efficiency (=350mAh/g), and specific capacity are low.

Researchers improved the production method to overcome the problem of artificial graphite, which is used in lithium-ion batteries. A modified artificial graphite product with low expansion and high compaction is a good example. Its use as the negative electrolyte of a replacement lithium battery improves its conversion to electrolyte and reduces the swelling of pole shoes. The process of production is to replace the artificial graphite by pitch, etc. The carbonization process is to replace the artificial graphite with pitch, etc. A layer of amorphous, carbon-doped material is formed over the artificial graphite. The overlapping layer prevents the co-embedding and expansion of organic solvents. The surface layer has been displaced so that the lithium batteries are interrupted. This maintains high capacity and low potential, as well as compatibility with solvents.

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Graphite Graphite can be classified into artificial graphite Graphite or natural graphite. Although both graphite powders have similar properties in terms of physical and chemical […]

A New Semiconductor Material Germanium Disulfide Powder

Germanium disulfide The chemical formula of this inorganic compound is GeS2. Germanium disulfide (GeS2) is a semiconductor.

Germanium Disulfide Properties:

Germanium disulfide comes as a white powder that is readily soluble in water. It also dissolves in hot alkali or concentrated hydrochloric. It is unstable. It can be sublimated at high temperatures and oxidized. In moist or inert environments, it dissociates. Germanium disulfide, an intermediate of germanium metalurgy, is produced when germanium powder reacts with sulfur vapor.
Germanium oxide is a transparent material for microwave radiation. It does not absorb the radiation. The sodium sulfide (as well as the sulfur element) and germanium diulfide that are produced in this reaction, however, are substances which absorb microwave radiation. In order to achieve vulcanization or volatilization using microwave radiation, only the sulfide is selectively absorbed. This causes a sudden rise in temperature which triggers germanium’s reaction with sulfur. Germanium Sulfide is produced, and this germanium sulfide absorbs microwave radiation to reach the temperature for sublimation and volatileization.

Germanium Disulfide Application:

The “nano flowers” that are created from dust of metal germanium diulfide (a semiconductor) is made. Its petal shape means that, even though the object is tiny, it has an enormous surface area. This allows it to store a great deal of energy.

Recently, American scientists developed a miniature power source. This tiny pink structure can completely subvert traditional battery designs and store energy through a unique, surface-structured nanostructure. This “nanoflower”, made from germanium (a semiconductor), has a flower-shaped space that is smaller and with more surface to store energy.

The germanium-disulfide nano flower is just 20-30 nanometers thin and 100 microns wide. It can be used in the production of new smart phone batteries because it has a large space structure with a small surface area.

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Germanium disulfide The chemical formula of this inorganic compound is GeS2. Germanium disulfide (GeS2) is a semiconductor. Germanium Disulfide Properties: Germanium disulfide comes as a […]

Molybdenum disilicide is often used as a structural ceramic material in electric heating elements

Introduction to molybdenum Disilicide Molybdenum diilicide This silicon molybdenum compound, also known by the name molybdenum-silicide, has a molecular composition of MoSi2 with a molal weight of 154.13. It is a gray metal solid. They have similar properties to ceramics and metals because the radii and electronegativity of the two types of atoms is not very different. The melting point can reach as high a temperature as 2030degC and is also conductive. It is possible to form a layer of silicon dioxide on the surface at high temperatures in order to prevent further oxidation. The gray metallic color is due to its tetragonal, a-type crystalline structure. Although it has a hexagonal form, the crystal structure is unstable. The b modified crystal structure. Insoluble in many acids, but soluble only in hydrofluoric and nitric acids.

It is used for high-temperature antioxidation coatings, electric heating element films, structural materials as well as reinforcing materials for composite materials.

Applications of molybdenum Disilicide
They are used as high-temperature coatings against oxidation, heating elements, electrode films integrated, structural materials. Composite materials. Reinforcements for composite materials. Wear-resistant materials. Connecting materials for structural ceramics. These products are used in the following industries.
1. Energy and Chemical Industry: Electric heating elements, heat exchangers for atomic reactors, gas burners, thermocouples at high temperatures and their protective tubes, melting vessels and crucibles.
2. Microelectronics: MoSi2 The refractory metals Si5Si3, WSi2, and TaSi2, among others, are also good candidates for large-scale integrated circuit gates and interconnection lines. They are also important candidates as materials for large-scale interconnection and integrated circuit gates.
3. Aerospace Industry: This coating has been widely researched and extensively applied in the aerospace industry as an anti-oxidation high-temperature coating. Particularly as a material used for turbine engine parts, such as impellers, blades, combustors and nozzles.
4. Automobile Industry: turbochargers, valves bodies, spark plugs, and engine parts.

What factors influence the service life and performance of molybdenum-disilicide heating components?
1. Fired products. Fired products. The magnetic material industry is the one with the longest service life, and the special glass industry has the least.
2. Product quality. Product quality is determined by raw material production and manufacturing processes.
3. The quality is important. A high quality stove can extend the life of its components.
4. Surface problems. Long-term usage at 1800degC can cause surface problems, such as bubbles and lumps, which will reduce the life of the rod.
5. Dimensional tolerance. The precise temperature control will be affected directly by the accuracy in the hot-end size. If there is a small tolerance in the diameter of the hot end, then the impedance and cross-sectional area will also be affected, which will alter the heat generated by the electric heating component. It also affects the uniformity or life of the heating elements in an electric furnace.
6. Furnace operator. The heating element will be damaged if it is overheated or has too much power.
7. Product contamination. The component deteriorates when the protective coating reacts with a product or an atmosphere.
8. Insulation issues. Insulation problems.
9. Mechanical force. Thermal breaks can become brittle and even deform if they are placed in the wrong direction.

What is the cost of molybdenum dilicide?
(aka. Technology Co. Ltd., a global chemical supplier & manufacturer that has over 12 years experience in the production of super-high-quality chemicals & Nanomaterials. Currently, we have developed a successful series of powdered materials. Our OEM service is also available. If you’re looking for MoSi2 Contact us for more information about powder. Please click here to order powder. Needed products Send us a message.

Introduction to molybdenum Disilicide Molybdenum diilicide This silicon molybdenum compound, also known by the name molybdenum-silicide, has a molecular composition of MoSi2 with a molal […]

The Property And Application of Bismuth Telluride

What property does Bismuth Telluride have?

Bismuth telluride The molecular formula of the powder is Bi2Te3. Bismuth telluride, an indirect band-gap semiconductor, has a band gap of 0.145eV at room temperature, electron mobility of 0.135m2/(V*s) and hole mobility of 4.×10-2m2/ (V*s), and a coefficient of thermoelectric quality of 1.6×10-3/K.
Bismuth Telluride is a dense material with a density 7.8587g/cm3 at a melting temperature of 585degC. It is bound with covalent and ionic bonds. Bismuth telluride exhibits the characteristics of a topological insulate, which allows electrons flow freely over its surface.

Bismuth Telluride is prepared by the Bridgman Method, Zone Smelting Method, and Czochralski Method. Bismuth telluride, a semiconductor, has a good electrical conductivity and mediocre thermal conductivity.

What are the applications of Bismuth Teluride?

Bismuth-telluride-based semiconductors have high performance thermoelectric conversion in the low- and mid-temperature range. These materials are widely used to control temperature and for local refrigeration in microelectronics. The applications of these devices are excellent in thermoelectric power generation and industrial waste heat recovery.

By doping the alloy, phonons can be increased to reduce thermal conductivity and to optimize the carrier concentration to improve electrical performance. This will enhance the thermoelectric performance.

The dangers of ingesting large amounts of bismuth-telluride are low but it can still be fatal. The material is able to allow electrons on its surface to move at room temperatures without consuming energy, which can lead a significant increase in the chip’s operating speed.

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What property does Bismuth Telluride have? Bismuth telluride The molecular formula of the powder is Bi2Te3. Bismuth telluride, an indirect band-gap semiconductor, has a band […]

The Invention Relates to a Preparation Method and a Process of Aluminum Diboride Powder

Background Technology

Aluminium diboride, also known as AlB2, is a compound that has high theoretical burning heat, a high melting temperature, good chemical stability, and refines aluminum grains well. This makes it suited for many applications. AlB2 has many applications, including particle enhancers to improve wear resistance, hydrogen storage materials, solid propellants, etc. AlB2 is currently prepared in two ways: by direct solid phase sintering between boron powder, aluminum powder, and boron fluoride or oxide, or through aluminum heat reaction. AlB2 Powder prepared by either of these two methods suffers from uneven particle size and form, which results in a reduction of performance. There is a need for a method that can prepare AlB2 Powder with uniform size. This will allow the powder to be controlled in particle size and shape and provide good performance.

Technical Implementation Element

The invention aims to solve these problems by providing an aluminum diboride and its preparation method that can control particle size and shape and ensure good performance. The invention reveals a method to prepare aluminum diboride. This includes adding the precursor raw materials in the liquid phase to get the evenly mixed solution, followed by ultrasonic mixing. The precursor raw materials can be boron powder or aluminum powder.

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Background Technology Aluminium diboride, also known as AlB2, is a compound that has high theoretical burning heat, a high melting temperature, good chemical stability, and […]

What are the Main Application Areas 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 three hardest substances known (the two others being diamond and cubic boron-nitride). Tank armor, bulletproof vests, and many other industrial uses are made of it. Boron carbide absorbs a lot of neutrons but does not produce radioisotopes. This makes it an ideal neutron absorption material for nuclear power plants. Neutron absorbers are used to regulate the rate of nuclear fusion. 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.

What are the main applications of Boron Carbide?

(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.

(2) In terms or chemical raw materials. To increase the wear-resistance and strength of alloys, boron carbide is used as an alloy boronizing agent. This can be done by boronizing the metal to create 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 gun cutting. 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. Due to its excellent capacity for neutron absorbtion, boron carbide is often used as a neutron absorption control rod, safety rods and in other components, which are designed to reduce the rate of nuclear fusion and ensure human safety.

(5) Aviation. The gyroscope in the navigational system of an aircraft is an essential component. Boron carbide can be used as an additive to increase the gyroscope’s life.

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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. […]

Study on Semiconductor Material Bismuth Telluride

What is property of Bismuth Telluride?

Bismuth telluride is a gray powder with the molecular formula Bi2Te3. Bismuth telluride is a semiconductor material, which has good electrical conductivity, but poor thermal conductivity. Although the risk of bismuth telluride is low, it can be fatal if ingested in large amounts. However, this material can allow electrons to move on its surface without energy consumption at room temperature, which will bring a leap in the operating speed of the chip, meanwhile it can greatly improve the operating speed and work efficiency of computer chips.

What are preparation methods of Bismuth Telluride?

Bismuth telluride powder materials can be processed into various commonly used devices. The more commonly used preparation methods are: zone melting method, Bridgeman method, single crystal pulling method, plasma activated sintering method and hot pressing Sintering method, the preparation of single crystal materials often use zone melting method, Bridgman method and single crystal pulling method.

1. Zone melting method: It is a method of growing single crystals by melting and crystallization of polycrystalline ingots. The rod-shaped polycrystalline ingot is melted in a narrow area, and the rest is kept solid, and then a molten area is moved along the length of the ingot, so that the rest of the entire ingot is melted and crystallized again.

2. Bridgman method: It is a commonly used crystal growth method, also known as the crucible descending method. This method is to put the material for crystal growth in a cylindrical crucible, and slowly pass through a high-frequency furnace or resistance furnace with a temperature gradient. The temperature of the furnace should be slightly higher than the melting point of the crystal material. When the crucible containing the crystal material drops to the heating center of the furnace, the material begins to melt; when the crucible continues to fall slowly, after passing the heating center of the furnace, the temperature at the bottom of the crucible begins to drop first, when the temperature drops When the melting point of the crystalline material is below, the crystalline material begins to crystallize until the crucible is completely cooled, and the crystal continues to crystallize and grow. This method is mainly suitable for common ionic compounds, such as halides of alkali metals and alkaline earth metals.

3. Czochralski method: It is the method that Chukraski invented in 1917 to grow high-quality single crystals from the melt, so it is also called Chukraski method. This method is to put crystal material in the crucible. Then heat the crucible, after the crystal material is completely melted, use the pull rod to pull the crystal material out of the melt, and under proper temperature control, the seed crystals pulled out during the cooling period are continuously rearranged, then growing crystals.

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What is property of Bismuth Telluride? Bismuth telluride is a gray powder with the molecular formula Bi2Te3. Bismuth telluride is a semiconductor material, which has […]

Brief introduction of silicon carbide products

Introduction to silicon carbide products
Silicon carburide also known by the names moissanite or emery is an inorganic material with a formula of SiC. It is produced by melting quartz sand with wood chips, coke or petroleum coke. In nature, silicon carbide is found in the rare mineral moissanite. It is the most popular and cost-effective refractory material among the non-oxide materials like C, N, and B. It can also be called refractory or gold steel. In China, silicon carbide is made up of two types: green and black. They are both hexagonal crystals and have a specific gravity ranging from 3.20 to 3.25.

Both black silicon carburide and green silica carbide belong to the aSiC. Black silicon carbide has a SiC content of 95% and is more durable than green silicon carbide. It is used to process materials that have low tensile strengths, like glass, ceramics or stone. Green silicon carbide has a SiC content of over 97% and is self-sharpening. It is used primarily for the processing of cemented carbide (a titanium alloy), optical glass and titanium alloy. Also, it can be used for honing and fine grinding tools made from high-speed steel and for cylinder liners. There is also a cubic silicon-carbide, which is yellow-green crystals prepared through a special method. The abrasive tools used to make them are suitable for superfinishing bearings. Surface roughness is processed between Ra320.16microns and Ra0.040.02 microns.

Aside from being an abrasive, silicon carbide can be used in many other ways. This is due to its chemical stability, high thermal conductivity (low thermal expansion coefficient), and wear resistance. The powder of silicon carbide can be used to coat a specific impeller, cylinder or other part of a turbine. The inner wall of the refractory can be improved to increase its resistance to abrasion and its life span by upto 2 times. Low-grade Silicon carbide (containing about 85% SiC), which is a deoxidizer of excellent quality, can improve the steelmaking process and speed. It also allows for better control over chemical composition. Besides, silicon is used in the manufacture of silicon carbide for electric heater elements.
It is the second hardest substance in the world, after diamonds (10). It has excellent heat conductivity and is a semi-conductor.

There are at least 70 crystal forms of silicon carbide. Allomorphs of silicon carbide are the most common. It has a hexagonal crystalline structure and is formed above 2000 degC at high temperatures. Below 2000 degC b Silicon Carbide with cubic crystals, similar to Diamond, is formed. On the page is a network. It is eye-catching due to its larger surface area unit than the a catalyst type, even though heterogeneous catalyst support is used. A type of silicon carburide called m-silicon is more stable, and it produces a pleasing sound when it collides. However, until now these two types had not been used commercially.
Due to its high sublimation temp (approximately 27°C) and 3.2g/cm3 specific weight, silicon carbide makes a great raw material for bearings and high-temperature ovens. It does not melt at any pressure, and it has a very low chemical activity. Its high thermal conductivity and breakdown electric field strength as well as its high maximum current densities have led many to try and use it in place of silicon for high-power semiconductor components. It has a high coupling effect to microwave radiation.
The color of pure silicon carbide, however, is black or brown when produced industrially. This is due to iron impurities. The silica coating on the surface of the crystal gives it a rainbow-like appearance. To

Pure silicon carbide is a transparent, colorless crystal. The impurities in industrial silicon carbide cause it to be light yellow or green. It can also be blue, black, or dark brown. Its clarity varies according to its purity. The cubic silicon carburide (called cubic silica carbide) and hexagonal rhombohedral or hexagonal a-SiC crystal structures are the two main types of silicon carbide. The different stacking of silicon and carbon atoms creates a variety of a SiC variants. Over 70 types have been identified. Above 2100degC bSiC turns into aSiC. Industrial silicon carbide is produced by refining petroleum coke and high-quality sand in a resistance oven. The silicon carbide blocks that have been refined are crushed and then subjected to acid-base washing, magnetic separation, sieving, or water selection.
It is artificial because silicon carbide has a low natural content. The standard method involves adding wood chips and salt to coke. It is then heated to 2000degC in an electric kiln.
Its excellent hardness has made it an indispensable abrasive, but its range of application is much wider than that of general abrasives. Due to its thermal conductivity and high-temperature resistance, it is a popular choice for kiln furniture in tunnel kilns. The electrical conductivity of this material makes it a vital electric heating element. SiC products can be prepared by first preparing SiC smelt block [or SiC Pellets, as they contain C but are very hard and were previously called: emery. It is not natural emery, also known as garnet. In the industrial production of SiC, quartz, petroleum coal, etc. is usually used. As raw materials, as auxiliary recovery material, or as spent materials. After grinding or other processes, the materials are blended to a charge that has a reasonable particle size and ratio to adjust its gas permeability. An appropriate amount must be added. To prepare green silicon carbide at high temperatures, you need to add the correct amount of sodium chloride. Special silicon carbide electric heaters are used for the thermal equipment to prepare SiC smelting at high temperatures. Its main components are the bottom of furnace, end wall with electrodes inside, removable sidewalls and furnace core body. Both ends are electrode-connected. This electric heater uses what is known as buried-powder firing. As soon as you turn it on, the heating begins. The furnace core is at 2500degC (or even higher, between 2660-2700degC). SiC is produced when the charge reaches approximately 1450degC (but SiC forms mainly at temperatures >=1800degC). SiC decomposes when the temperature is >=2600. The decomposed si, however, will form SiC and C in the charged.
Each electric heater is equipped with transformers. Even so, during production only one electric heater is operated to adjust voltage according to electrical load characteristics in order to maintain constant electricity. The high-power electric furnace needs to be heated for about 24 hours. After a power failure, the reaction of generating SiC is over. After a cooling period, the sidewall can be removed, and then the charge is gradually taken out. Silicon carbide products can be divided into many categories and are divided into different categories according to different use environments and generally used on machinery more. For example, when used on mechanical seals, it can be called a silicon carbide seal ring, which can be divided into the static ring, moving ring, flat ring and so on. We can also produce various shapes of silicon carbide products according to customers’ special requirements, such as silicon carbide special-shaped parts, silicon carbide plates, silicon carbide rings, etc.
Silicon carbide ceramics, one of the silicon carbide products, has the characteristics of high hardness, high corrosion resistance, and high-temperature strength, which makes silicon carbide ceramics widely used.
Applied to seal ring: Silicon carbide ceramic has good chemical resistance, high strength, high hardness, good wear resistance, low friction coefficient, and high-temperature resistance, so it is an ideal material for manufacturing sealing rings. When paired with a graphite material, its friction coefficient is smaller than that of alumina ceramics and cemented carbide, so it can be used for high PV values, especially in the working conditions of transporting strong acids alkalis. The SIC-1 silicon carbide atmospheric sintered products produced by our company have the characteristics of high density, high hardness, large production batches, and the ability to make products with complex shapes. They are suitable for high-performance seals, exceptionally high PV values and Resistant to strong acids and alkalis. The SIC-3 silicon carbide ceramic works produced by our company are graphite-containing silicon carbide materials. Since the silicon carbide matrix contains many dispersed fine graphite particles when paired with other materials, its friction coefficient is minimal. It has good self-lubricating properties, which is especially suitable for making air-tight dry-friction seals. It is used in the medium so that the seal’s service life and the work’s reliability are improved.

The furnace charge after high-temperature calcination is unreacted material (for heat preservation in the furnace), silicon carbide oxycarbide (semi-reactive material, the main components are C and SiO. ), the binder layer (for bonding Very tight material layer, the main element is C, SiO2, 40% to 60% SiC and Fe, Al, Ca, Mg carbonate), amorphous material layer (the main component is 70% to 90% SiC, and it is Cubic SiC is b-sic, and the rest are C, SiO2 and carbonates of Fe, Al, Ca, and Mg), second grade SiC layer (the main component is 90%-95% SiC, the coating has formed hexagonal SiC, namely the mouth One SiC, but the crystal is small and fragile, and cannot be used as an abrasive), the first-class SiC layer (SiC content <96%, and it is hexagonal SiC that is a coarse crystal of SiC), furnace core graphite. Among the layers as mentioned above, the unreacted material and a part of the oxycarbide layer material are usually collected as spent material, and the other part of the oxycarbide layer material is collected together with the amorphous material, the second-grade product, and part of the bonded material as recycled material. Charges and some bonds with tight bonding, large lumps and many impurities are discarded. The first-grade product is classified, coarsely crushed, finely crushed, chemically treated, dried and sieved, and magnetically separated into black or green SiC particles of various sizes. To make silicon carbide powder, it must go through a water selection process; to make silicon carbide products, it must go through forming and sintering.

( Tech Co., Ltd ) is a professional Silicon carbide manufacturer with over 12 years of experience in chemical product research and development. If you are looking for high-quality Titanium dioxide, please feel free to contact us and send an inquiry.

Introduction to silicon carbide products Silicon carburide also known by the names moissanite or emery is an inorganic material with a formula of SiC. It […]
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