摘要
本文采用水热法,以Al(OH)3和Y2O3为前驱物,3 mol/L KOH作矿化剂,高温430℃,反应24 h,合成了微米级Y3Al5O12晶体。对合成材料的结构和形貌进行了测量分析,用差示扫描量热仪(DSC)和热重分析仪(TGA)测量分析了热性能。实验结果表明,所合成产物的成分、结构与前驱物中Y2O3与Al(OH)3的摩尔比有关。当Y∶Al的摩尔比为1∶3时合成的纯相钇铝石榴石Y3Al5O12(YAG)晶体,呈立方体形,最大尺度超过100μm。
Y3Al5O12 micro-crystals were synthesized by hydrothermal method,with Al(OH)3 and Y2O3 as precursor,3 mol/L KOH as mineralizer in this paper.The reaction time and temperature was 24 h and 430 ℃,respectively.The structure and morphology of the production were studied by XRD and SEM.Differential scanning calorimetry(DSC) and thermo-gravimetric analysis(TGA) techniques were conducted to determine the thermal characteristics.The result show that the composition and the morphology of complex were different by cha...
出处
《人工晶体学报》
EI
CAS
CSCD
北大核心
2009年第1期179-183,共5页
Journal of Synthetic Crystals
基金
国家自然科学基金(No.50472037
No.50672020
No.50772027)
河北省自然科学基金(E2008000628
E2007000197)
关键词
钇铝石榴石
水热法
晶体形貌
YAG
hydrothermal method
crystal morphology
