表面活性剂对NTC纳米粉体及热敏材料性能的影响  

The effect of surface active agent on performance of CoMnNi oxides powders and characters of the thermistor

作　　者：张惠敏[1] 常爱民[1] 杨阳[1] 赵青[1] 

机构地区：[1]中国科学院新疆理化技术研究所,新疆乌鲁木齐830011

出　　处：《功能材料》2007年第A02期591-594,共4页Journal of Functional Materials

基　　金：乌鲁木齐市科技攻关资助项目（G06211002）.

摘　　要：采用液相共沉淀法制备了CoMnNiO热敏电阻粉体材料，重点研究了表面活性剂在合成过程中对CoMnNiO粉体性能的影响，并采用XRD、TEM对制备的粉体进行了表征，同时探讨了表面活性剂对粉体的烧结性能和电学性能的影响。结果表明添加合适的表面活性剂能够较好地控制粉体材料的大小、形状，改善粉体材料的表面性能；通过研究粉体的烧灶性能以及电性能发现，加入一定量的表面活性剂可以提高粉体的烧结活性，并且使得材料的日值、R值一致性较好。Thermistor powder of CoMnNi oxides was perpared by using co-precipitation method. The effects of surface active agent on performance of CoMnNi oxides powders are studied emphatically, and it was analyzed using XRD, TEM technology. The effects of surface active agent on the sintering activity and electric characters of CoMnNi oxides powders have been investigated. The results indicated that adding suitable surface active agent, the size and shape of CoMnNi oxides can be controlled well, and the superficial performance of CoMnNi oxides powders can be improved.

关 键 词：NTC粉体材料 表面活性剂 热敏电阻 

分 类 号：O611.4[理学—无机化学]