摘要
研究了(Sr_(0.48)Pb_(0.48)Y_(0.03)Ca_(0.01))TiO_3基陶瓷的半导化行为。结果表明:PbO适当过量有利于半导化。Raman光谱,AES(Augerelectronspectroscopy)分析表明,随着SiO_2含量的增加,氧空位浓度及Ti ̄(3+)浓度增大,XRD分析表明,随SiO_2含量增大,轴比c/a增大。
The semiconducting characteristics of(Sr_(0.48)Pb_(0/48)Y_(0/03)Ca_(0.01))TiO_3-based ceramics were investi- gated. It is shown that appropriate excess of PbO is favourable to semiconduction,According to Raman spec- troscopy,AES(Auger electron spectroscopy)and XRD results,the concentration of oxygen vacancies,Ti ̄(3+) ions and the axis ratio are increatsed with the increase of SiO_2 content.
出处
《硅酸盐学报》
EI
CAS
CSCD
北大核心
1994年第4期364-369,共6页
Journal of The Chinese Ceramic Society
关键词
钛酸锶铅基
陶瓷
半导化
光谱
lead strontium titanate-based ceramics,semiconducting,Raman spectra,Auger electron spec- troscopy