Metallurgical studies carried out on samples of iridium versus iridium/40-percent rhodium thermocouples in condition received from manufacturer. Metallurgical studies included x-ray, macroscopic, resistance, and metallographic studies. Revealed large amount of internal stress caused by cold-working during manufacturing, and large number of segregations and inhomogeneities. Samples annealed in furnace at temperatures from 1,000 to 2,000 degree C for intervals up to 1 h to study effects of heat treatment. Wire annealed by this procedure found to be ductile.


    Access

    Access via TIB

    Check availability in my library


    Export, share and cite



    Title :

    Annealing Increases Stability Of Iridium Thermocouples



    Published in:

    Publication date :

    1989-04-01



    Type of media :

    Miscellaneous


    Type of material :

    No indication


    Language :

    English