申请日期 | 2025-07-05 | 申请号 | DE102007012468 |
公开(公告)号 | DE102007012468A1 | 公开(公告)日 | 2008-09-18 |
公开国别 | DE | 申请人省市代码 | 全国 |
申请人 | EPCOS AG | ||
简介 | A ceramic material with a negative temperature coefficient of specific resistance has the general formula [{(SE1III, SE2III)1−x(M1II, M2II)x}(Cr1−y−zMny(Me1III, Me2III)z)O3]. In this formula, SE1III and SE2III are different rare-earth metal cations, M1II and M2II are selected from CaII, SrII, and Me1III and Me2III are redox-stable, trivalent metal cations, wherein the following applies with respect to the parameters : 0 |
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