Comparison study on the high-temperature phase stability of CaO-doped zirconia made using different precipitants

被引：14

作者：

Duan, Guorong

Yang, Xujie ^{[1
]}

Lu, Anqi

Huang, Guohong

Lu, Lude

Wang, Xin

机构：

[1] Nanjing Univ Sci & Technol, Mat Chem Lab, Nanjing 210094, Peoples R China

[2] Nanjing Hydraul Res Inst R&D High Technol Co Ltd, Nanjing 210024, Peoples R China

来源：

MATERIALS CHARACTERIZATION | 2007年 / 58卷 / 01期

基金：

美国国家科学基金会;

关键词：

cubic; tetragonal; zirconia; high-temperature phase stability; sol-gel;

D O I：

10.1016/j.matchar.2006.04.002

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

CaO-doped zirconia was synthesized by a traditional sol-gel method using both NaOH and ammonia solutions as precipitants. The high-temperature phase stability was investigated following calcining at 1000 degrees C for 2 h. XRD and Raman spectra were used to characterize the crystal form of the zirconia. The results indicate that the concentration of OH- introduced into the ZrO2 lattice is the main factor controlling the crystal form of nanosized zirconia using NaOH solution as the precipitant. CaO-doped zirconia synthesized using an ammonia solution as the precipitant can maintain the tetragonal phase after calcining at 1000 degrees C for 2 h. (c) 2006 Elsevier Inc. All rights reserved.

引用

页码：78 / 81

页数：4

共 22 条

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