Thermoelectric properties of W-Re composite strengthened by nanoparticles of yttrium oxide

Characteristics of the thermocouples with W5%Re against W20%Re thermoelements were studied when the positive thermoelement was made of a composite with addition of 0.1% yttrium oxide nanoparticles having an average size of 50nm. Physical, mechanical and thermoelectric properties of the composite as well as its structural features were determined. The conditions of thermal EMF stabilization for the modified thermocouple were established under high temperatures annealing.