ZnO基导电陶瓷的溶胶掺杂制备

PREPARATION OF ZnO-BASED CONDUCTIVE CERAMICS BY SOL DOPING PROCESS

摘要: 用Co、Nb、Y元素对ZnO材料进行掺杂制备出ZnO基导电陶瓷样品。研究了掺杂含量及掺杂方式对ZnO基导电陶瓷电阻率的影响。用溶胶一凝胶法制得Y（NO₃）₃含Ti掺杂剂溶胶且与Y₂O₃固相氧化物掺杂进行了比较。结果表明，Y（NO₃）₃含Ti溶胶掺杂可制备出室温电阻率很低的ZnO基导电陶瓷，其室温电阻率可达3.38x10^-2Ω·m，溶胶引入量为0.05%mol。

Abstract: The samples of ZnO-based conductive ceramics have been prepared by doping ZnO materials with Co, Nb and Y elements. Influence of doping amount and method on the resistivity of ZnO-based conductive ceramics is investigated. Y(NO₃)₃ sol dopants with Ti are fabricated by a sol-gel process and compared with Y2O3 solid phase additives, the results show that ZnO-based conductive ceramics of very low resistivity at room temperature can be prepared by use of Y(NO₃)₃ sol dopants with Ti, the resistivity is as low as 3.38 × 10^-2Ω·m and the amount of Y(NO₃)₃ sol dopants with Ti is 0.05%mol.