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无机材料学报

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水热盐溶液卸压法制备氧化物粉体

李汶军; 施尔畏; 郑燕青; 王步国; 殷之文   

  1. 中国科学院上海硅酸盐研究所; 上海 200050
  • 收稿日期:1998-06-29 修回日期:1998-09-12 出版日期:1999-06-20 网络出版日期:1999-06-20

Preparation of Oxide Powders by Hydrothermal Salt Solution Pressure-relief

LI Wen-Jun; SHI Er-Wei; ZHENG Yan-Qing; WANG Bu-Guo; YIN Zhi-Wen   

  1. Shanghai Institute of Ceramics; Chinese Academy of Sciences Shanghai 200050 China
  • Received:1998-06-29 Revised:1998-09-12 Published:1999-06-20 Online:1999-06-20

PDF (PC)

942

被引次数

85

摘要： 本文采用一种新的水热粉体制备方法-水热盐溶液卸压法，制得了α-Al2O3粉体、AlO（OH）纤维以及ZrO2和AlO（OH）复合氧化物粉体．发现以1mol／LAl（NO3）3溶液作为前驱物，0．2mol／LFe（NO3）3为添加剂，在300℃可制得α－Al2O3粉体．以1mol／LAl（NO3）3溶液为前驱物；1mol／LKBr为添加剂，在350℃可制得长径比为13：1的AlO（OH）纤维．当采用AlCl3、ZrOCl2溶液为前驱物，Zr/Al的比例为1：3时，在240℃可制得纤维状AlO(OH)颗粒和球形ZrO2颗粒的复合氧化物粉体．

关键词: 水热法, 粉体, 纤维

Abstract: α-Al2O3 powder, AlO(OH) fibers and complex oxides made up of ZrO2 and AlO(OH) were prepared by a new hydrothermal method-hydrothermal salt
solution pressure-relief. α-Al2O3 powders were prepared at 300℃ by using 1mol/L Al(NO3)3 solution as precursor, 0.2mol/L Fe(NO3)3 as additive; AlO(OH) fiber with the ratio of length with
diameter 13:1 were prepared at 350℃ by using 1mol/LAl(NO3)3 as precursor, 1 mol/L KBr as additive; complex oxides made up of ZrO2 and AlO(OH) were prepared
at 240℃ by using 0.75mol/L AlCl3 and 0.25mol/L ZrOCl2 mixed solutions as precursor.

Key words: hydrothermal method, powder, fiber

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