The resistance coefficient of rhodium wire is 4.67 x 10-2Ω·mm2/m, tensile strength is 726MPa, and the elongation is 46%.The argon gas of high frequency furnace is used to protect melting. The Rhodium wire is processed into 0.02mm filament by melting, remelting 2~3 times, bottom pouring, hot processing and cold processing in the protection of high frequency furnace argon. It is a good high temperature thermocouple material. The temperature stability of Rh - PtRh20 thermocouple is good, it doesn’t need stringent cold junction compensation. Operating temperature is 1800 ℃. There are also Rh-PtRe8 and Rh-Rh Re8.
Volume modulus of elasticity: GPa 380.
Atomization enthalpy: 556.5 kJ/mol, @ 25 ℃
Heat capacity: 24.98.J/(mol· K)
Electrical conductivity: 0.211 10 ^ (6)/(cm Ω)
rhodium wire - rhodium alloy wire - rhodium sheet - rhodium rod - rhodium ingot - rhodium pellet - rhodium alloy.