Influence of oxidation way on microstructure and oxides distribution of Ag–SnO2Sb2O3 materials
摘要
Ag–SnO2Sb2O3 materials prepared by internal oxidation technology have excellent electrical properties. Here Ag–SnO2Sb2O3 materials are fabricated by four kinds of different oxidation ways. Influence of oxidation way on microstructure and oxides distribution is investigated and the formation mechanism of Ag–SnO2Sb2O3 materials is discussed. The oxidation effect of billet oxidation in air + Ag2O is the best and the oxides distribution is the most uniform and the physical properties (relative density: 97.2%, hardness: 57 Hv03 and electrical conductivity: 12.3 Ms/m) are also the best in the four kinds of oxidation ways.