Ir Bal. Pt 0.002 Pd 0.001 Rh 0.003 Ru 0.001 Au 0.001 Ag 0.001 Fe 0.001 Cu 0.002 Application: 1. Iridium is the only precious metal thermocouple that can measure temperature up to 2100 C in the atmosphere because of its high temperature oxidation resistance and thermoelectric properties. Iridium can be used as a container material for radioactive heat source. Iridium anodic oxide film is a promising electrochromic material. Ir192 is a gamma ray source, which can be used for nondestructive testing and radiochemical therapy. Iridium is also an important alloying element; 2. Iridium powder/Iridium gold melting into gold can increase the weight, hardness and density of gold, generally adding about 5%~30%(K gold) of gold weight for mixed melting; 3. It is used for electronic pastes, reduce the sintering temperature of the electronic pastes; 4. It is used for welding of alloy, reduce the alloy melting point; 5. It's for in the alloy, improve the abrasion resistance of alloy; 6. It's for lubricants, improve the wear resistance of lubricating oil; 7. In the application of coatings, improve transparency and abrasion resistance, resistance to scratch and conductive ability;
