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Jun 30, 2020Tungsten carbide is three times harder than steel. The hardness of tungsten carbide falls in between 8.5 and 9 on the Mohs hardness scale, which is next only to diamond. In addition, tungsten carbide shows good resistance to flame, water, organic

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History - Union Carbide

Union Carbide establishes Carbide and Carbon Chemicals Corporation; also, the first commercial ethylene plant is completed at Clendenin, W. Va. — the start of the petrochemical industry. 1923 Eleven acres of land in South Charleston, W. Va. are leased to set up a commercial scale plant, which will — in a few years — begin production of several ethylene-based chemicals.

Face Materials | Types of Mechanical Seal Faces

Tungsten Carbide - A very versatile seal face like Silicon Carbide. It is very hard like silicon carbide however it is very heavy to the touch, making it easy to distinguish from silicon carbide. Ideal for high pressure appliions due to a high modulus of elasticity which helps prevent face distortion.

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Calcium carbide - Wikipedia

Calcium carbide, also known as calcium acetylide, is a chemical compound with the chemical formula of CaC2. Its main use industrially is in the production of acetylene and calcium cyanamide.[3] The pure material is colorless, however pieces of technical-grade calcium carbide are grey or brown and consist of about 80–85% of CaC2 (the rest is


Barium Oxide is a highly insoluble thermally stable Barium source suitable for glass, optic and ceramic appliions. Barium oxide is a white hygroscopic solid often formed through the decomposition of barium salts, it forms barium hydroxide when reacted with water.

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WILLIAMS et al.: ETCH RATES FOR MICROMACHINING PROCESSING—PART II 763 TABLE II E TCH R ATES OF Si, Ge, SiGe, AND C (nm/min) sccm, , mtorr. The polygermanium deposition was preceded by the deposition of silicon seed layer approximately 6


Silicon carbide (SiC) exists only as a solid and, as it has no liquid phase, the material is rigid at all practical operating temperatures. This means that silicon carbide elements can be installed horizontally or vertically, without any additional supports, which Silicon

Silicone fluids & silicone emulsions - Wacker Chemie AG

Optimum water repellency. Silicone fluids have no known harmful effects and are transparent liquids that have no taste or odor. Their viscosities lie between 0.65 and 1,000,000 mm²/s, depending on the type. Since there are only very weak intermolecular forces

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Silicon Carbide SiC Material Properties - Accuratus

Silicon carbide ceramics with little or no grain boundary impurities maintain their strength to very high temperatures, approaching 1600 C with no strength loss. Chemical purity, resistance to chemical attack at temperature, and strength retention at high temperatures has made this material very popular as wafer tray supports and paddles in semiconductor furnaces.

14.4A: Graphite and Diamond - Structure and Properties - …

Silicon Dioxide does not conduct electricity since there aren''t any delocalized electrons with all the electrons are held tightly between the atoms, and are not free to move.Silicon Dioxide is insoluble in water and organic solvents.

Alumina Trihydrate (ATH) - Huber Engineered Materials

Huber’s ATH is inert, low in oil absorption and completely insoluble in water, alcohol and other solvents. In cast polymer and solid surface appliions, ATH is the ideal choice to provide stain resistance for kitchen countertops. In some coating systems, ATH outperforms calcium

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