【摘要】 研究了施主掺杂和受主掺杂对SrTiO3压敏陶瓷材料微观结构和电性能的作用。研究结果表明,La、Nb进行双施主掺杂时按一定比例能获得较低的压敏电压;以La进行单施主掺杂,含量为1.2mol%时,压敏电压最低。双施主掺杂的压敏电压要高于单施主的电压。以CuO进行受主掺杂的效果要好于以MnCO3进行受主掺杂的效果。更多还原

【Abstract】 The effect of donor and acceptor doping on the microstructure and electrical property of SrTiO3 ceramic varistor material was studied. When doped with two donors of La and Cu in stated proportion, the sensing-voltage is relatively low; When doped with a single donor of La of 1.2mol%, the sensing-voltage is low. The sensitive-voltage of the material doped with two donors is higher than with a single donor. When CuO and MnCO3 are used as acceptors, the effect of doped CuO is better.更多还原