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醇-水热法制备钇铝石榴石(YAG)纳米粉体

李霞; 刘宏; 王继扬; 崔洪梅; 张旭东   

  1. 山东大学晶体材料国家重点实验室 济南 250100
  • 收稿日期:2003-08-15 修回日期:2003-10-20 出版日期:2004-09-20 网络出版日期:2004-09-20

Synthesis of Yttrium Aluminium Garnet (YAG) Nano-sized Powders by Mixed Solvo-thermal Method

LI Xia; LIU Hong; WANG Ji-Yang; CUI Hong-Mei; ZHANG Xu-Dong   

  1. The State Key Laboratory on Crystal Materials; Shandong University; Jinan 250100; China
  • Received:2003-08-15 Revised:2003-10-20 Published:2004-09-20 Online:2004-09-20

摘要: 首先采用共沉淀法制备钇铝石榴石前驱体,然后以乙醇-水混合溶剂作为反应介质,在较低的温度(300℃)和压力(10MPa)下,制备分散性好的钇铝石榴石纳米粉体.并借助XRD,TEM,BET与IR等测试手段,对所制备样品的性能进行了表征.实验结果表明,在适当的醇-水比条件下可在较低的温度和压力下制备纯相的YAG纳米粉体,其粒度大约为20nm,分散性良好.并对YAG的醇-水热形成机理进行了初步探讨.

关键词: 钇铝石榴石, 纳米粉体, 醇-水热法

Abstract: Polycrystalline nano-sized powders of aluminium yttrium garnet (YAG) were synthesized by a mixed
solvo-thermal method at low temperature(300℃) and low pressure (10MPa). The phase transformation, composition and micro-structural features
of the final products were characterized by X-ray powder diffraction, IR, BET, and TEM techniques. X-ray powder diffraction patterns indicated that pure
phase YAG powder was synthesized in the mixed solvent at lower temperature. The transmission electron microscopy (TEM) revealed the averaged size of
crystallite was 20nm and well dispersed. The mechanism of YAG formation in the hydrothermal condition was investigated based on the results.

Key words: yttrium aluminium garnet, nano-sized powder, solvo-thermal method

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