| 摘要 |
<p>Provided is a method for producing a lead-free, perovskite semiconductor ceramic composition which is capable of suppressing the temperature coefficient of resistance ± from becoming small, and obtaining stable characteristics. The method for producing a lead-free semiconductor ceramic composition in which a portion of Ba in a BaTiO 3 -based oxide is substituted by Bi and A (in which A is at least one kind of Na, Li and K), the method including: calcining a raw material for forming the semiconductor ceramic composition at 700°C to 1,300°C; adding an oxide containing Ba and Ti, which becomes a liquid phase at 1,300°C to 1,450°C, to the calcined raw material; forming the same; and then sintering at a temperature of 1,300°C to 1,450°C.</p> |
