水热水解法制备钇稳定纳米氧化锆工艺研究  

Study on Preparation Process of Yttrium-Stabilized Nano-Zirconia by Hydrothermal Hydrolysis

作　　者：谭海翔 秦文忠 韦世强 甘培原 黄裕峰 TAN Hai-xiang;QIN Wen-zhong;WEI Shi-qiang;GAN Pei-yuan;HUANG Yu-feng(Chalco Guangxi Non-Ferrous Rare Earth Development Co.,Ltd.,Nanning 530023,China)

机构地区：[1]中铝广西有色稀土开发有限公司,广西南宁530023

出　　处：《稀有金属与硬质合金》2023年第3期77-81,共5页Rare Metals and Cemented Carbides

基　　金：南宁市科技基地专项(20215017);南宁市兴宁区重点研发计划项目(2022A04)。

摘　　要：以氧氯化锆、氯化钇和氨水为原料,聚乙二醇为分散剂,采用水热水解法制备钇稳定氧化锆(YSZ),系统研究了锆离子浓度、反应温度、钇掺杂量、分散剂添加量以及煅烧温度对氧化锆产品形貌、分散性、粒度和晶型的影响。结果表明:在锆离子浓度0.8 mol/L、反应温度180℃、钇掺杂量3%(摩尔分数)、分散剂添加量2%(质量分数)和煅烧温度1000℃的条件下,可制得分散性好、粒度分布均匀的类球状钇稳定纳米氧化锆粉末。Yttrium-stabilized zirconia(YSZ)was prepared by hydrothermal hydrolysis using zirconium oxychloride,yttrium chloride,and ammonia as raw materials and polyethylene glycol as a dispersant.The effects of zirconium ion concentration,reaction temperature,yttrium doping amount,dispersant addition,and calcination temperature on the morphology,dispersity,particle size,and crystal form of the zirconia products were systematically studied.The results show that under the conditions of zirconium ion concentration of 0.8 mol/L,reaction temperature of 180℃,yttrium doping amount of 3%(molar fraction),dispersant addition of 2%(mass fraction),and calcination temperature of 1000℃,yttrium-stabilized nano-zirconia powders with good dispersity,uniform particle size distribution and spherical-like shape could be obtained.

关 键 词：钇稳定纳米氧化锆 水热水解 氧氯化锆 氨水 工艺条件 

分 类 号：TQ134.12[化学工程—无机化工]