From an extrapolation of previously reported thermoelectric power (TEP) data of Zr-Ni glasses for Ni contents below 70 at.%, large negative TEP values were expected for alloyswith about 90 at.% Ni. By contrast, in the present work, large positive values (as high as+8U.V /K in some cases) were obtained at room temperature for melt-quenched Zr10Nigo, Zr9Ni95and HfnNi89alloy ribbons either in the amorphous or crystalline state. The TEP wasfound to be positive and to increase monotonously from 4.2 K to 320 K with a broad maximumaround room temperature. These anomalously large positive thermopower data are suggested tobe explained based on ideas developed for crystalline solid solution alloys of Ni with earlytransition metals.
ASJC Scopus subject areas
- Physics and Astronomy(all)