Pulse electric current sintering is an advanced technology for materials synthesis and one of effective methods for preparation nano - structure ceramic . but the sintering mechanism is different with traditional sintering method . the sintering phenomena of oxide nano - powders have been investigated in this paper 放电等离子体烧结技术( sps )是材料制备新技术之一,也是制备纳米相陶瓷的有效方法之一,但烧结金属氧化物纳米粉末过程中的致密化机理与传统理论有一定的区别,本文对脉冲电流烧结金属氧化物纳米粉末进行了系统研究。