1.前言对于热电偶材料,高的热电势固然是重要的性能指标,但热电势的稳定性与均匀性则更为重要.影响热电势稳定性与均匀性的因素主要有化学成分和组织结构等.选择适当的热处理制度及加工工艺是改善热电势的稳定性与均匀性的重要措施之一.在本实验中,我们测取PtRh_10.合金在不同热处理条件下的正电子湮没辐射 1. Introduction For thermocouple materials, high thermoelectric power is an important performance index, but the stability and uniformity of thermoelectric power are more important. Factors that affect the stability and uniformity of thermoelectric power are mainly chemical composition and organizational structure Etc. Selecting the appropriate heat treatment system and processing technology is one of the important measures to improve the stability and uniformity of the thermoelectric power.In this experiment, we measured the positron annihilation radiation of PtRh_10 alloy under different heat treatment conditions