表面诱导沉淀法制备Al2O3-ZrO2纳米复合粉体

无机材料学报

表面诱导沉淀法制备Al₂O₃-ZrO₂纳米复合粉体

刘晓林; 黄勇; 袁蓉

清华大学新型陶瓷与精细工艺国家重点实验室, 北京 100084

收稿日期:1999-11-26 修回日期:2000-01-19 出版日期:2000-12-20 网络出版日期:2000-12-20

Preparation of Al₂O₃-ZrO₂(15vol%) Nanometer Composite Powder by Surface-Induced Precipitation

LIU Xiao-Lin; HUANG Yong; YUAN Rong

State Key Laboratory of New Ceramics and Fine Processing; Dept. of Mater. Sci. and Eng.; Tsinghua University） Beijing 100084; China

Received:1999-11-26 Revised:2000-01-19 Published:2000-12-20 Online:2000-12-20

摘要/Abstract

摘要： 采用表面诱导沉淀法，制备了Ａｌ_２Ｏ_３－ＺｒＯ_２（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_２前驱体均匀地包裹在Ａｌ_２Ｏ_３颗粒表面，经过８００℃煅烧之后，Ａｌ_２Ｏ_３颗粒表面均匀地结合着粒径约为３０ｎｍ的ＺｒＯ_２颗粒，ＺｒＯ_２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_２颗粒脱落现象，表明ＺｒＯ_２颗粒与Ａｌ_２Ｏ_３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

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 Al₂O₃ particle is about 30urn.

Key words: Al₂O₃-ZrO₂, nanometer composite powder, surface-induced precipitation

中图分类号:

TF123

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.

LIU Xiao-Lin,HUANG Yong,YUAN Rong. Preparation of Al₂O₃-ZrO₂(15vol%) Nanometer Composite Powder by Surface-Induced Precipitation[J]. Journal of Inorganic Materials.

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表面诱导沉淀法制备Al₂O₃-ZrO₂纳米复合粉体

Preparation of Al₂O₃-ZrO₂(15vol%) Nanometer Composite Powder by Surface-Induced Precipitation

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