| 申请日期 | 2025-07-25 | 申请号 | WOEP08052628 |
| 公开（公告）号 | WO2008110485A2 | 公开（公告）日 | 2008-09-18 |
| 公开国别 | WO | 申请人省市代码 | 全国 |
| 申请人 | EPCOS AG; CERNOCH CLAUS; FELTZ ADALBERT | ||
| 简介 | An embodiment of the invention relates to a ceramic material having negative temperature coefficients of the specific resistance and the general formula : [{(SE1III, SE2III)1-x(M1II, M2II )x} (Cr1-y-zMny(Me1III, Me2III)z)O3] where 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 < x < 1; 0 < z < 1; 0 < y < 1-z. | ||
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