采用共沉淀法制备Ni-Mn-O系负温度系数(negative temperature coefficient,NTC)陶瓷粉体,考察三种沉淀剂(NaOH、Na2CO3、H2C2O4)对沉淀前驱体和烧结体的影响.分别采用TEM、XRD、TGA和SEM对沉淀前驱体和烧结体进行表征,并测量烧结体的电学性能.结果表明,草酸是最优的沉淀剂,所制得前驱体的粒度分布均匀,结晶完善,烧结体致密,电学性能一致.
参考文献
| [1] | Rousset A;Legros R;agrange A .Recent progress in the fabrication of ceramic negative temperature coefficient thermistors[J].Journal of the European Ceramic Society,1994,13(03):185-195. |
| [2] | 王忠兵,吴蕾,赵肃莹,韩效钊.掺杂对Ni-Mn-O系NTC热敏陶瓷及其电学性能的影响[J].硅酸盐学报,2009(06):927-931. |
| [3] | Adalbert F;Walter P .Spinel forming ceramics of the system FexNiyMn3-x-yO4 for high temperature NTC thermistor applications[J].Journal of the European Ceramic Society,2000,20(14-15):2353-2366. |
| [4] | Weimin Wang;Xiangchun Liu;Feng Gao .Synthesis of nanocrystalline Ni_1Co_(0.2)Mn_(1.8)O_4 powders for NTC thermistor by a gel auto-combustion process[J].CERAMICS INTERNATIONAL,2007(3):459-462. |
| [5] | G. Ashcroft;I. Terry;R. Gover .Study of the preparation conditions for NiMn_2O_4 grown from hydroxide precursors[J].Journal of the European Ceramic Society,2006(6):901-908. |
| [6] | S.A. Kanade;Vijaya Puri .Composition dependent resistivity of thick film Ni_(1_x)Co_xMn_2O_4: (0 < = x <= 1) NTC thermistors[J].Materials Letters,2006(11):1428-1431. |
| [7] | Zhenxing Yue;Xiwei Qi;Xiaohui Wang;Ji Zhou;Zhilun Gui;Longtu Li .Low-temperature sintered Ni-Zn manganite NTC ceramics prepared by a gel auto-combustion method[J].Journal of Materials Science Letters,2002(5):375-377. |
| [8] | 方道来,朱运兵,赵春花,王忠兵,杨萍华,陈初升.FeNiMnO4负温度系数热敏电阻的制备与电性能表征[J].功能材料,2004(z1):903-906. |
| [9] | Zhongbing Wang;Chunhua Zhao;Pinghua Yang .X-ray diffraction and infrared spectra studies of Fe_xMn_(2.34-x)Ni_(0.66)O_4 (0<X< 1) NTC ceramics[J].Journal of the European Ceramic Society,2006(13):2833-2837. |
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