根据传统的草酸盐共沉淀法合成超细BaTiO3粉末易产生偏离四方相的特点,提出了一种改进的草酸盐共沉淀法制备BaTiO3粉体的方法.利用改进的草酸盐共沉淀法在700℃制备出了各向同性的四方相纳米尺寸的BaTiO3粉体,煅烧温度比常规的草酸盐共沉淀法降低了100℃左右;粉体平均粒径约30nm,颗粒均匀,且制备出的粉体具有良好的热稳定性.
参考文献
| [1] | 张煜 .喷雾水解反应法制备电子陶瓷用钛酸钡超细粉末[D].华东理工大学,2000. |
| [2] | H. Chang;I. Takeuchi;X. -D. Xiang .A low-loss composition region identified from a thin-film composition spread of (Ba_(1-x-y)Sr_xCa_y)TiO_3[J].Applied physics letters,1999(8):1165-1167. |
| [3] | EZHIVALAVAN S;TSENG T Y .Progress in the developments of (Ba,Sr) TiO3 (BST) thin films for Gigabit era DRAMs[J].Materials Chemistry and Physics,2000,65:227-248. |
| [4] | COLE M W;JOSHI P C;ERVIN M H .The influence of Mg doping on the materials properties of Ba1-xSrxTiO3 thin films for tunable device applications[J].Thin Solid Films,2000,374:34-41. |
| [5] | 张爱菊,沈毅,张晨.草酸盐共沉淀法制备高性能无铅PTC粉体[J].中国陶瓷工业,2005(05):21-24. |
| [6] | PANDA B;SAMANTARAY C B;DHAR A et al.Electrical properties of RF magnetron sputtered Bax Sr1-x TiO3 films on multi-layered bottom electrodes for high-density memory application[J].J Mater Sci:Materals in Electronics,2002,13:263-268. |
| [7] | NODA M;HASHIMOTO K;KUBO R et al.A new type of dielectric bolometer mode of detector pixel using ferroelectric thin film capacitors for image sensor[J].Sensors and Actuators A:Physical,1999,77:39-44. |
| [8] | W.Hhu;O.K.Tan .Preparation, property, and mechanism studies of amorphous ferroelectric (Ba, Sr)TiO_3 thin films for novel metal-ferroelectric-metal type hydrogen gas sensors[J].Journal of Materials Research,2000(6):1291-1302. |
| [9] | Zhu W.;Yao X.;Tan OK. .Amorphous ferroelectric (Ba0.67Sr0.33)Ti1.02O3 thin films with enhanced H-2 induced interfacial polarization potential[J].Journal of Applied Physics,1998(9):5134-5139. |
| [10] | STOCKENHUBER Michael;MAYER Helmut;Lercher Johannes A .Preparation of barium titanates from oxalates[J].Journal of the American Ceramic Society,1993,76(05):1185-1190. |
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