熔盐法制备ZrO2晶须的工艺研究  

Preparation of Zirconia Whiskers by Molten Salt Method

作　　者：张权 冯果 江峰 刘健敏 苗立锋 吴倩 王涛 江伟辉 ZHANG Quan;FENG Guo;JIANG Feng;LIU Jianmin;Miao Lifeng;WU Qian;WANG Tao;JIANG Weihui(School of Material Science and Engineering,Jingdezhen Ceramic Institute,Jingdezhen 333403,China;National Engineering Research Center for Domestic&Building Ceramics,Jingdezhen 333001,China)

机构地区：[1]景德镇陶瓷大学材料科学与工程学院,景德镇333403 [2]景德镇陶瓷大学国家日用及建筑陶瓷工程技术研究中心,景德镇333001

出　　处：《中国陶瓷》2021年第6期19-24,共6页China Ceramics

基　　金：国家自然科学基金(51662016,51962014,52072162);江西省重点研究计划项目(20192BBEL50022);江西省青年基金重点项目(20202ACBL241006);江西省研究生创新专项资金项目(YC2019-S377)。

摘　　要：以氯化钾为熔盐,氟化锂为矿化剂,采用熔盐法制备了单斜氧化锆晶须。利用XRD、SEM、TEM、HR-TEM等测试手段研究了矿化剂用量、热处理温度、降温制度对氧化锆晶须合成的影响。结果表明:矿化剂的引入促进了氧化锆晶体的一维生长,矿化剂用量为熔盐的7 wt%,热处理温度为950℃,保温3 h,可得到长度1~3μm,长径比20~30的氧化锆晶须,其表面光滑、没有明显缺陷,生长方向为[001]。Monoclinic zirconia whiskers were prepared by a molten salt method with potassium chloride as the molten salt,and lithium fluoride as mineralizer.The effects of the dosage of mineralizer,heat treatment temperature,cooling scheme on the preparation of the zirconia whiskers were studied by XRD,SEM,TEM,HR-TEM.The results show that the mineralizer promoted the one-dimensional growth of zirconia crystals.The zirconia whiskers with the length of 1~3μm,the aspect ratios of 20~30,and smooth surface with no obvious defects were obtained with the dosage of mineralizer of 7 wt%,the heat treatment temperature of 950℃,the holding time of 3 h,and the growth direction was[001].

关 键 词：晶须 氧化锆 熔盐法 矿化剂 

分 类 号：TQ174.758.11[化学工程—陶瓷工业]