Tag: resistant

The applications of Chromium Carbide Powder

Overview Chromium Carbide Powder
Chromium carbide This organic compound has a molecular structure of Cr3C2 (molecular weight 180). Gray powder,orthorhombic crystal system,a = 2.821,b = 5.52,c = 11.46,melting point 1890degC,boiling point 3800degC.The micro Vickers hardness(load 50 g)is 2700kg/rnrn2,and the thermal expansion coefficient is 10.3×10-6/K.Insoluble in water,resistant to acids and alkalis.It is a high melting point inorganic material with good wear resistance,corrosion resistance and oxidation resistance in high temperature environments(1000-1100 degrees).Chromium carbide is used as a thermal spray material for metal surface protection,and it is also often used as a cemented carbide.Grain refiners and other wear-resistant and corrosion-resistant parts.Chromium carbide-based cermets have excellent oxidation resistance at high temperatures,and the surface only slightly darkens after exposure at 982degC for 5 hours.Under the same conditions,18-8 stainless steel has been severely damaged,Chromium carbide Cr3C2 powder is a very hard refractory ceramic material.It is a fine gray powder,rarely the natural mineral Tongbaishi.Chromium carbide has strong corrosion resistance and high temperature oxidation properties,and its thermal properties are similar to steel.It is an excellent material for many commercial industries.Several different chromium carbide compounds can be formed,each of which has slightly different mechanical properties and applications.Chromium carbide is used as a thermal spray material to protect the surface of the underlying metal,and as an additive for corrosion-resistant and wear-resistant materials.Where there is sliding wear,the application of chromium carbide is particularly effective.
Chromium Carbide Cr3C2 Powder CAS 12012-35-0
What is i These are the applications Carbide Powder
Chromium carbide Cr3C2 Powder is a high melting material with excellent wear resistance, corrosion resistance and oxidation resistance.
1.Oxidation-resistant,oxidation-resistant and acid-resistant coatings are widely used in aircraft engines and petrochemical machinery and equipment,which can greatly increase the service life of the machinery.It is also commonly used as a grain refiner for cemented carbide and other wear-resistant and corrosion-resistant parts.Cermets based on Cr3C2 have excellent oxidation resistance at high temperatures.
2. Used to make chromium carbide ceramics. It is used to make chromium-carbide ceramics.
3. Used as a thermal spray material to protect the metal surfaces below.
4.Additives used in the manufacture of wear-resistant or corrosion-resistant materials
5.As a coating to seals, bearings or valve seals.
6.It is used as the microcrystalline component in cemented carbide (such like vanadium carbide) to inhibit sub-micron grain growth during pressing and sintering.
The supplier Chromium Carbide Powder
Tech Co., Ltd. () is a professional carbide powder Over 12 years’ experience in chemical product development and research. We accept credit cards, T/T and West Union payments. We will ship goods overseas via FedEx, DHL and by air or sea to our customers.
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Overview Chromium Carbide Powder Chromium carbide This organic compound has a molecular structure of Cr3C2 (molecular weight 180). Gray powder,orthorhombic crystal system,a = 2.821,b = […]

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What is Silicon Nitride Si3N4?

What is Silicon Nitride? Silicon Nitride Is an organic substance that has the chemical composition Si3N4. Gray, white, or grayish-white. The relative molecularweight is 140.28.
It is an important structural ceramic material and has high hardness. It is a high-temperature antioxidant and has wear resistance and lubricity. It does not react to hydrofluoric and hot phosphoric acids, and is strong resistant to corrosion. It is also resistant to cold and heat shock, rapid cooling and heating, as well as heating in the air to more that 1000.
It is often used to make mechanical components, such as bearings and gas turbine blades. It can improve the quality and efficiency of an engine by using silicon nitride clay that is resistant to high heat and difficult to heat transfer.

How to make silicon nitride clays?
There are two primary production methods for silicon nitride ceramics: reaction heating and hot pressing heating.
The reaction Sintering technique is used to produce the mixture of silicon nitride and silicon powder in accordance with the general production methods for ceramic products. It is then pre-nitrided at 1150-1200 to achieve a certain strength. Then it is ready for machine on the machine tool. It is then nitrided again at 1350-1450 for an additional 18-36h, until it becomes silicon nitride. The product size and volume are stable because of this method.
The hot-pressing rule stipulates that silicon oxide powder and a small quantity of additives (such MgO, Al2O3, AlF2, AlF3, or Fe2O3) must be used. They are sintered and pressed at a pressure of 19.6MPa or 1600 to 1700. In general, hot pressing sintering produces a product with a higher density and greater performance than reaction sintering.

What’s silicon nitride ceramic for?
Silicon nitride clays are strong and resistant to high temperatures. The ceramic material silicon nitride ceramics has the highest comprehensive mechanical properties. It is also resistant to oxidation, heat shock, wear, corrosion, and oxidation. Silicon nitride clays are used in the mechanical sector as bearing balls and rollers, seats, tooling, pumps, sealants, and other purposes.
The chemical industry uses silicon nitride clays as wear-resistant, corrosion-resistant parts. This includes the ball valve, pump body and combustion carburetors as well as filters.
Silicon nitride ceramics, which are high-temperature resistant and have a low friction coefficient, provide self-lubricity in the gold mining industry. It can work with most metals and alloy solutions.

Silicon Nitride Si3N4 Powder Price
Price is affected by many factors, including supply and demand, industry trends and economic activity.
You can email us to request a quote for the latest silicon-nitride Si3N4 si3N4 powder price . (brad@ihpa.net)

Silicon Nitride Si3N4 Powder Supplier
Technology Co. Ltd. is a trusted global supplier and manufacturer of chemical materials. We have more than 12 years experience in producing super high-quality chemicals.
Send us an inquiry if you’re looking for Si3N4 powder of high quality. (brad@ihpa.net)

What is Silicon Nitride? Silicon Nitride Is an organic substance that has the chemical composition Si3N4. Gray, white, or grayish-white. The relative molecularweight is 140.28. […]

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