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表面诱导沉淀法制备Al2O3-ZrO2纳米复合粉体
引用本文:刘晓林,黄勇,袁蓉. 表面诱导沉淀法制备Al2O3-ZrO2纳米复合粉体[J]. 无机材料学报, 2000, 15(6): 1089
作者姓名:刘晓林  黄勇  袁蓉
作者单位:清华大学新型陶瓷与精细工艺国家重点实验室, 北京 100084
基金项目:国家高新技术发展计划资助项目!(863-715-06-0100)
摘    要:采用表面诱导沉淀法,制备了Al-ZrO(15vol%)纳米复合粉料,利用透射电子显微镜对其形貌进行了表征.结果表明:在pH=5时,可以使ZrO前驱体均匀地包裹在Al颗粒表面,经过800℃煅烧之后,Al颗粒表面均匀地结合着粒径约为30nm的ZrO颗粒,ZrO颗粒尺寸均匀.该粉体经过24h球磨和超声波处理之后,未发生ZrO颗粒脱落现象,表明ZrO颗粒与Al颗粒表面结合紧密.

关 键 词:Al2O3-ZrO2  纳米复合粉体  表面诱导沉淀  
收稿时间:1999-11-26
修稿时间:2000-01-19

Preparation of Al2 O3-ZrO2(15vol%) Nanometer Composite Powder by Surface-Induced Precipitation
LIU Xiao-Lin,HUANG Yong,YUAN Rong. Preparation of Al2 O3-ZrO2(15vol%) Nanometer Composite Powder by Surface-Induced Precipitation[J]. Journal of Inorganic Materials, 2000, 15(6): 1089
Authors:LIU Xiao-Lin  HUANG Yong  YUAN Rong
Affiliation:State Key Laboratory of New Ceramics and Fine Processing; Dept. of Mater. Sci. and Eng.; Tsinghua University) Beijing 100084; China
Abstract:Al2O3-ZrO2(15vol%) nanometer composite powder was prepared by surface-induced precipitation under the condition of pH=5. Zeta potential and TEM were applied for characterizing the specimen. The results show that the structure of the composite powder calcined at 800℃ is tightness and uniform and the average size of ZrO2 particles combined on the surface of Al2O 3particle is about 30nm.
Keywords:Al2O3-ZrO2  nanometer composite powder  surface-induced precipitation    
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