Application areas of tungsten carbide
It is widely used as high-speed cutting tools, kiln structure materials, jet engine parts, cermet materials, resistance heating elements, etc.
2021-07-09
View Details09
2021/07
Application areas of tungsten carbide
It is widely used as high-speed cutting tools, kiln structure materials, jet engine parts, cermet materials, resistance heating elements, etc.
09
2021/07
Application fields of molybdenum carbide
From the perspective of the global consumption structure, molybdenum is indeed an ally of iron. 80% of the demand for molybdenum in western developed countries comes from steel, stainless steel absorbs 30% of molybdenum, low-alloy steel absorbs 30%, drill bits and cutting tools account for 10%, and cast steel accounts for 10%. Another 20% of molybdenum consumption is in molybdenum chemicals, molybdenum-based lubricants and petroleum refining. Quite typically, the proportion of molybdenum consumption in steel production in the United States in 1998 was 75%.
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2021/07
Physical and chemical properties of vanadium carbide
Black cubic crystals. The melting point is 2810°C, the boiling point is 3900°C, and the relative density is 5.77. Slightly harder than quartz. It can be made by reducing vanadium pentoxide with coke. Mainly used in the manufacture of vanadium steel. It can be used as an additive for carbide cemented carbide.
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2021/07
The chemical properties of zirconium carbide
Dark gray cubic crystals with metallic luster. Brittle. The melting point is 3540°C. The boiling point is 5100°C. The apparent density is 6.70 g/cm3. Mohs hardness 8-9. Insoluble in cold water and hydrochloric acid. It is soluble in hydrofluoric acid and hot concentrated sulfuric acid containing nitric acid or hydrogen peroxide. It reacts with chlorine at high temperature to produce zirconium tetrachloride. At 700°C, it burns in the air to produce zirconia. Does not react with water.
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2021/07
1. Used as additives for cutting tool materials and metal bismuth, zinc, and cadmium melting crucibles to prepare semiconductor wear-resistant films, HDD large-capacity memory devices.
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2021/07
Physical and chemical properties of niobium carbide
Is insoluble in hot and cold hydrochloric acid, sulfuric acid, nitric acid, but soluble in a mixed solution of hot hydrofluoric acid and nitric acid. It is stable at 1000~1100℃, and rapidly oxidized to niobium pentoxide above 1100℃. Niobium carbide is easy to melt in titanium carbide, zirconium carbide, tungsten carbide and other compounds, and together form isomorphous solid solution mixtures. Melting point: 3500℃, density: 7.6g/cm³(25℃)
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