Effects of some rare earth oxides and/or SiO2 additions to a commercial ZrO2 paint for coating SiGe thermoelectric materials |
| |
| Authors: | T. Amano B. J. Beaudry K. A. Gschneidner Jr. F. C. Laabs |
| |
| Affiliation: | (1) Ames Laboratory, and Department of Materials Science and Engineering, Iowa State University, 50011 Ames, Iowa, USA;(2) Present address: Sagami Institute of Technology, Tsujido-Nishikaigan, Fujisawa, 251 Kanagawa, Japan |
| |
| Abstract: | The effects of some rare earth oxides (Y2O3, CeO2, Sm2O3 or Er2O3) and/or SiO2 additions to a commercial oxide paint (mainly ZrO2) were studied as coatings for SiGe thermoelectric materials. No spalling occurred in the samples prepared from coatings containing small amounts of Er2O3, SiO2 or both CeO2 and SiO2 while heating for 1322 h at 1080° C in vacuum, and the sublimation of silicon and/or germanium was reduced significantly. The improvements imparted by these oxide additions to the commercial oxide paint is thought to be due to decreased internal stress of the surface oxides. The addition of Y2O3 and Sm2O3 had a detrimental effect. |
| |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ |
|
