Oxidation resistance of glass coated PbTe

Author

Chen, Lidong ; Goto, Takashi ; Tu, Rong ; Hirai, Toshio

Author_Institution

Inst. of Mater. Res., Tohoku Univ., Sendai, Japan

fYear

1998

fDate

24-28 May 1998

Firstpage

539

Lastpage

542

Abstract

The SiO₂-ZnO-B₂O₃-Na₂O system glass with various composition was coated on PbTe surface in order to improve the oxidation resistance of PbTe. The oxidation behavior of the glass-coated PbTe was investigated by measuring the mass change, and the effects of the glass composition on the oxidation behavior were discussed. The addition of PbO·TeO₂ to the SiO₂-ZnO-B₂O₃-Na₂O system glass reduced the microcracks and improved the adhesion of the glass to PbTe. The mass change of the glass coated PbTe decreased with increasing PbO·TeO₂ content in the glass. The PbTe specimen coated by the glass containing 60 mass% PbO·TeO₂ exhibited excellent oxidation resistance, which showed no mass changes at 773 K for 360 ks

Keywords

boron compounds; lead alloys; microcracks; oxidation; silicon compounds; sodium compounds; tellurium alloys; thermoelectric conversion; thermoelectric devices; zinc compounds; 773 K; PbO·TeO₂ content; PbO-TeO₂; PbTe; PbTe specimen; PbTe surface; SiO₂-ZnO-B₂O₃-Na₂O; SiO₂-ZnO-B₂O₃-Na₂O system glass; glass coated PbTe; glass composition; mass change measurement; microcracks reduction; oxidation resistance improvement; thermoelectric power generation; Coatings; Combustion; Glass; Lead; Oxidation; Power generation; Surface resistance; Tellurium; Temperature distribution; Thermoelectricity;

fLanguage

English

Publisher

ieee

Conference_Titel

Thermoelectrics, 1998. Proceedings ICT 98. XVII International Conference on

Conference_Location

Nagoya

ISSN

1094-2734

Print_ISBN

0-7803-4907-5

Type

conf

DOI

10.1109/ICT.1998.740436

Filename

740436