Granular powder of titanium carbide for titanium ceramic steel bonded to gold

1. TiC Appearance and light gray. Face-centered cubic structure. Insoluble in water. It has high chemical stability. Almost no chemical reaction with hydrochloric acid, sulfuric acid, but can be dissolved in aqua regia, nitric acid and nitrogen fluoride. Also soluble in solutions of alkaline oxides.

① 1. properties: gray metallic luster of the crystalline solid, hard, hardness second only to diamond, weak magnetic.

Density (g/mL,25℃): 4.93

③ 4. Melting point (ºC): 3140

④ 5. Boiling point (ºC, atmospheric pressure): 4820

⑤ 6. Solubility: soluble in nitric acid and aqua regia, insoluble in water.

⑥ 7. Mohs hardness: 9～10

⑦ 8. Microhardness (kg/mm2): 3000

⑧ 9. Modulus of elasticity (N/mm2): 2940

⑨ 10. Flexural strength (N/mm2): 240～400

⑩ 11. Thermal expansion coefficient (K): 7.74×10-6

⑪ 12. Thermal conductivity (W/(m-K)): 21

⑫ Heat of generation (kJ/mol): -183.4

5. High hardness, corrosion resistance, and good thermal stability

6. Titanium carbide is a typical transition metal carbide. Its bonding type is a mixture of ionic, covalent and metallic bonds in the same crystal structure. Therefore, titanium carbide has many unique properties. The crystal structure determines the basic characteristics of titanium carbide such as high hardness, high melting point, wear resistance and electrical conductivity. Titanium carbide ceramics are the most widely developed materials among the transition metal carbides of titanium, zirconium and chromium.