Electrical properties of varistors based on tin oxide

[摘要] Tin oxide varistors may be an alternative for zinc based ones. The comparative analysis of both materials showed that, after adding suitable dopants, SnO2has similar semiconducting properties as ZnO. SnO2varistors were made in two versions: low- and high- added. The distinction lied in the added barium-bismuth compound in an amount of 0.3% and 0.8% respectively. Other metal oxides commonly used in varistors were added as well. Varistors were created using conventional ceramic technology applying sintering temperature 1250oC.

[发布机构] Electrotechnical Institute, M. Sklodowskiej Curie 55/61, Wroclaw, Poland^1

[关键词] Ceramic technologies;Comparative analysis;Metal oxides;Semi-conducting property;Sintering temperatures