Abstract
The SiO/sub 2/-ZnO-B/sub 2/O/sub 3/-Na/sub 2/O 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/spl middot/TeO/sub 2/ to the SiO/sub 2/-ZnO-B/sub 2/O/sub 3/-Na/sub 2/O 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/spl middot/TeO/sub 2/ content in the glass. The PbTe specimen coated by the glass containing 60 mass% PbO/spl middot/TeO/sub 2/ exhibited excellent oxidation resistance, which showed no mass changes at 773 K for 360 ks.
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