| 摘要 |
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<x<1; 0<z<1; 0<y<1−z.
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