CONSTANTAN THERMOCOUPLE DEVICE CONTAINING ALUMINUM

摘要

The thermocouple has higher oxidation resistance and stable thermal electromotive force. It is composed of Cu 45 %, Ni 0.2-1.0 %, Mn 0.2-0.4 %, and Fe with 1-5 wt.% aluminum addition. The dense alumina film formed on the surface keeps the thermocouple from oxidation, thus making it to be used at higher temperature.