材料科学与工程学报2013，Vol.31Issue(3)：380-385,6.
共沉淀法合成NdAlO3陶瓷粉末
Synthesis of NdAlO3 Fine Ceramic Powders via Co-precipitation Process
摘要
Abstract
NdAlO3 fine ceramic powders have been successfully synthesized by co-precipitation process using aqueous ammonia as precipitating agent.Formation process of NdAlO3 powders and effect of mixing sequence of precipitating agent and nitrate solution and concentration of nitrate solution upon phase constitution and morphology of the prodnct powders have been investigated.Amorphous precursor decomposes into amorphous oxides with increasing heat treatment temperature,then NdAlO3 powders form when heat treatment temperature increasing to 700℃ ～ 750℃.NdAlO3 single phase powders are obtained by heat treated at 800℃ with a process that aqueous ammonia and 0.25-1mol/L of nitrate solution in proportion were mixed gradually.Uniform and spherical particles of product powder are obtained,the average particle size decreases slightly with increasing the nitrate solution concentration,and the smallest average particle size is about 60nm.While aqueous ammonia drops into nitrate solution,NdAlO3 phase forms at 800℃ with trace Nd4Al2O9 phase and average particle size is about 100nm.关键词
共沉淀法/NdAlO3粉末/微波介质陶瓷Key words
Co-precipitation process/ NdAlO3 powders/ microwave dielectric ceramics分类
化学化工引用本文复制引用
陈向楠,吴淑雅,陈湘明..共沉淀法合成NdAlO3陶瓷粉末[J].材料科学与工程学报,2013,31(3):380-385,6.基金项目
国家973重点基础研究发展计划资助项目(2009CB623302) （2009CB623302）
