【摘要】 采用固相反应法制备了LaFe0.25Ni0.75O3陶瓷并加入少量添加物作为改性剂,对其与Ag的浸润性,材料的电阻率以及Ag/陶瓷复合电接触材料的电性能分别进行了研究,结果显示,改性剂使陶瓷材料与Ag之间的浸润性发生明显的变化,且作用效果与改性剂的加入方式有关,添加剂的加入使材料的电阻率增大,同时一定程度上改变了陶瓷在银基体中的分布状态,从而对电接触材料的使用性能产生较大的影响。更多还原

【Abstract】 With a small quantity of additive as the ameliorant,LaFe_0.25Ni_0.75O₃ ceramic was prepared by means of traditional solid-phase reaction.The study shows ameliorant leads to obvious improvement of the wettability and the accession mode play the important role.The wettability greatly affects the distribution of ceramic in the silver base and at the same time affects the service performance of the electrical contact materials.更多还原