烧结工艺对SnO_2-LiZnVO_4系纳米湿敏材料性能的影响  

Influence of Sintering Processes on Characters of SnO_2-LiZnVO_4 System Nanometer Humidity-sensitive Material

作　　者：胡素梅[1] 陈海波[1] 傅刚[2] 孟凡明[3] 

机构地区：[1]茂名学院技术物理系,广东茂名525000 [2]广州大学固体物理与材料研究实验室,广东广州510405 [3]安徽大学物理与材料科学学院电子材料研究室,安徽合肥230039

出　　处：《材料科学与工程学报》2007年第1期108-110,21,共4页Journal of Materials Science and Engineering

基　　金：广东省科技计划资助项目(2002A1070304)

摘　　要：采用共沉淀法制备出SnO2-LiZnVO4系纳米粉体,考察了烧结工艺对材料微结构、湿敏特性和电容特性的影响。实验结果表明,适当的烧结工艺可明显改善纳米材料的微结构和感湿特性,采用共沉淀法制备SnO2-LiZnVO4系纳米粉体并选择好烧结温度,可使材料具有棒状晶粒微结构及低湿电阻小、灵敏度适中的湿敏试样。SnO2-LiZnVO4 system nanometer powders were prepared by co-precipitation. The influences of sintering processes of SnO2-LiZnVO4 nanometer humidity-sensitive material on microstructure, humidity-sensitive characters and capacity characters were studied. The experimental results show that the microstrhcture and humidity-sensitive characters can be improved by the proper sintering processes. A humidity sensitive material with a fine microstructure of suitable rod-shaped grains, lower resistance at lower humidity and proper humidity sensitivity can be obtained by the proper sintering processes in co-precipitation SnO2-LiZnVO4 powders.

关 键 词：共沉淀法 烧结工艺 微结构 电特性 

分 类 号：TN304[电子电信—物理电子学]