中国化学前沿2011，Vol.6Issue(2) ：76-83.DOI:10.1007/sl1458-011-0240-y

Electrophoretic deposition of Al2O3/ZrO2 layer with controllable thickness in ethanol medium

Chun-mei YANG Xian-chun CHEN Xiao-ming LIAO Zhong-bing HUANG Ya-dong YAO Guang-fu YIN
中国化学前沿2011，Vol.6Issue(2) ：76-83.DOI:10.1007/sl1458-011-0240-y
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Electrophoretic deposition of Al2O3/ZrO2 layer with controllable thickness in ethanol medium

Chun-mei YANG 1Xian-chun CHEN 1Xiao-ming LIAO 1Zhong-bing HUANG 1Ya-dong YAO 1Guang-fu YIN1
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作者信息

  • 1. College of Materials Science and Engineering, Sichuan University,Chengdu 610064, China
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Abstract

ZrO2 toughened Al2O3 (Al2O3/ZrO2) ceramic layers with required thickness were prepared by electrophoretic deposition (EPD) method using ethanol suspensions with stabilizing agent of polyethyleneimine (PEI) under constant-voltage mode in this paper. The deposition of Al2O3/ZrO2 ceramic powders occurred on the titanium alloy cathode. A stable suspension with 1wt% PEI in ethanol at pH 5 was prepared in terms of the zeta potential and sedimentation of the suspension.The effects of the suspension concentration, applied voltage, deposition time and processing method of titanium alloy cathode on the coating thickness and morphology were investigated. The deposition layers on titanium alloys with smooth surfaces and thickness of 0.35-1.2mm could be obtained by adjusting the aforementioned parameters. In addition, after being sintered at 1500℃ for 3 h in air atmosphere, ZrO2 toughened A12O3 ceramic layers became smooth and dense.

Key words

electrophoretic deposition/suspension/Al2O3/ZrO2

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基金项目

This work was supported by the National Natural Science Foundation of China(60871062)

This work was supported by the National Natural Science Foundation of China(50873066)

Distinguished Young Scholars of Sichuan Province(08ZQ026-007)

supports from Sichuan Province through a Science Fund for Key Technologies Research and Development Program of Sichuan Provi(2008SZ0021)

supports from Sichuan Province through a Science Fund for Key Technologies Research and Development Program of Sichuan Provi(2006Z08-001- 1)

出版年

2011
中国化学前沿
高等教育出版社

中国化学前沿

ISSN：1673-3495
参考文献量19
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