| 摘要 |
PURPOSE:To provide an element capable of self-heat generating at a high temp. of 500-1,200 deg.C when low voltage is impressed, not causing deformation or shrinkage at the time of high temp. heating and excellent in stability. CONSTITUTION:This heat generating element made of ceramics has multiple oxide ceramics represented by a formula (La1-x-yAxBy)p(Cr1-zCz)O3+ or -delta, contg. <=5wt.%, in total, of metallic impurities and having 1-45% open porosity and <=50mum average grain diameter as a resistor. In the formula, A is at least one selected among Ca, Sr and Ba, B is at least one selected among Y, Yb, Sc, Er, Dy and Nd, C is at least one selected among Mn, Co, Fe and Ni, 0.05<=x<=0.60, 0<=y<=0.50, 0.10<=z<=1.00 and 0.90<=p<=1.05. |
