硅酸盐学报2017，Vol.45Issue(7)：984-989,6.DOI:10.14062/j.issn.0454-5648.2017.07.14
氧化锆晶须的制备工艺
Preparation of Zirconia Whiskers
摘要
Abstract
Zirconia whiskers were prepared by a non-hydrolytic sol-gel process and a molten salt method with zirconia xerogel powder prepared by a reflux process as a raw material. The process of phase transformation of zirconia xerogel powder in NaVO3 molten salt system was investigated. The influences of reaction precursor species, heat treatment temperature and time on the preparation of zirconia whiskers were also analyzed by thermogravimetry–differential thermal analysis, X-ray diffractometer, field emission scanning electron microscopy and transmission electron microscopy, respectively. The results show that the activities of reaction precursor, heat treatment temperature and time all have influences on the formation of zirconia whiskers. When the dry gel prepared by the reflux process is used, and the heat treatment temperature and time are 900℃ and 5h, respectively, and zirconia whiskers elongated along the [010] direction with the average diameter of 110nm and the aspect ratio of 18 can be synthesized.关键词
非水解溶胶–凝胶工艺/熔盐法/氧化锆/晶须Key words
non-hydrolytic sol-gel process/molten salt method/zirconia/whiskers分类
通用工业技术引用本文复制引用
刘健敏,高啟蔚,江伟辉,冯果,陈婷,苗立锋..氧化锆晶须的制备工艺[J].硅酸盐学报,2017,45(7):984-989,6.基金项目
国家自然科学基金(51662016,51362014) （51662016,51362014）
江西省优势科技创新团队建设计划项目(20133BCB24010) （20133BCB24010）
江西省教育厅基金(GJJ150887,GJJ150919)项目. （GJJ150887,GJJ150919）
