Title :
Materials of BaO-SnO2-Sb2O3 system of ceramic fixed resistors
Author :
Zhuang, Yan ; Yang, Zunde ; Yu Zhengfang ; Zheng Yufang ; Zhang, Daniel H.
Author_Institution :
Min. of Machinery & Electron. Ind., Guangzhou, China
Abstract :
The relationship between the electrical characteristics of Ba(Sn,Sb)O3 system materials for fixed resistors and the contents of Sb2O3, BaO, and a silicate sintering agent was investigated. It was found that the donor centers formed by Sb 5+ are the cardinal cause of semiconduction in this system, but when Sb2O3>0.03 mol, the proportion of phase constituents among high-resistance, low-resistance, and insulating phases in the materials becomes a main factor affecting conduction. Therefore, the resistivity of the materials can be adjusted through changing the contents of Sb2O3, BaO, and the silicate sintering agent. A suspicious unidentified barium stannate seems to have been found in the high BaO region
Keywords :
antimony compounds; barium compounds; ceramics; electrical conductivity of solids; resistors; tin compounds; BaO; BaO-SnO2-Sb2O3 system; Sb2O3; Sb5+ donor centres; ceramic fixed resistors; electrical characteristics; resistivity; semiconduction; silicate sintering agent; Barium; Ceramics; Conductivity; Insulation; Phase measurement; Resistors; X-ray diffraction;
Conference_Titel :
Electronic Components and Technology Conference, 1990. ., 40th
Conference_Location :
Las Vegas, NV
DOI :
10.1109/ECTC.1990.122328
