Study on compact α-Al2O3 coating fabricated by sol-gel method

Xi Na Wang; Cheng Bin Jing; Xiu Jian Zhao

Study on compact α-Al₂O₃ coating fabricated by sol-gel method

Xi Na Wang^*
, Cheng Bin Jing
, Xiu Jian Zhao

^*Corresponding author for this work

Wuhan University of Technology

Research output: Contribution to journal › Article › peer-review

5 Scopus citations

Abstract

Transparent and stable alumina sol have been prepared by sol-gel method using aluminum isopropoxide as precursor, water as solvent and nitric acid as peptizer. Heat-treatment is adopted for the formation of Al₂O₃ coatings after the alumina gel is plated by liquid-falling method. Then transformation from alumina gel to Al₂O₃ is studied by TG-DTA. The result of XRD shows that the obtained coatings have crystal structure of α-Al₂O₃ and SEM shows that α-Al₂O₃ coatings finely combined with substrate are compact, homogeneous and crackfree. So the method is a good and simple one in fabricating compact a-Al₂O₃ coatings.

Original language	English
Pages (from-to)	1-3
Number of pages	3
Journal	Cailiao Kexue yu Gongyi/Material Science and Technology
Volume	13
Issue number	1
State	Published - Feb 2005
Externally published	Yes

Keywords

Aluminum isopropoxide
Compact α-AlO coating
Dispersion method
Liquid-falling method
Sol-gel method

Cite this

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title = "Study on compact α-Al2O3 coating fabricated by sol-gel method",

abstract = "Transparent and stable alumina sol have been prepared by sol-gel method using aluminum isopropoxide as precursor, water as solvent and nitric acid as peptizer. Heat-treatment is adopted for the formation of Al2O3 coatings after the alumina gel is plated by liquid-falling method. Then transformation from alumina gel to Al2O3 is studied by TG-DTA. The result of XRD shows that the obtained coatings have crystal structure of α-Al2O3 and SEM shows that α-Al2O3 coatings finely combined with substrate are compact, homogeneous and crackfree. So the method is a good and simple one in fabricating compact a-Al2O3 coatings.",

keywords = "Aluminum isopropoxide, Compact α-AlO coating, Dispersion method, Liquid-falling method, Sol-gel method",

author = "Wang, \{Xi Na\} and Jing, \{Cheng Bin\} and Zhao, \{Xiu Jian\}",

year = "2005",

month = feb,

language = "英语",

volume = "13",

pages = "1--3",

journal = "Cailiao Kexue yu Gongyi/Material Science and Technology",

issn = "1005-0299",

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number = "1",

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TY - JOUR

T1 - Study on compact α-Al2O3 coating fabricated by sol-gel method

AU - Wang, Xi Na

AU - Jing, Cheng Bin

AU - Zhao, Xiu Jian

PY - 2005/2

Y1 - 2005/2

N2 - Transparent and stable alumina sol have been prepared by sol-gel method using aluminum isopropoxide as precursor, water as solvent and nitric acid as peptizer. Heat-treatment is adopted for the formation of Al2O3 coatings after the alumina gel is plated by liquid-falling method. Then transformation from alumina gel to Al2O3 is studied by TG-DTA. The result of XRD shows that the obtained coatings have crystal structure of α-Al2O3 and SEM shows that α-Al2O3 coatings finely combined with substrate are compact, homogeneous and crackfree. So the method is a good and simple one in fabricating compact a-Al2O3 coatings.

AB - Transparent and stable alumina sol have been prepared by sol-gel method using aluminum isopropoxide as precursor, water as solvent and nitric acid as peptizer. Heat-treatment is adopted for the formation of Al2O3 coatings after the alumina gel is plated by liquid-falling method. Then transformation from alumina gel to Al2O3 is studied by TG-DTA. The result of XRD shows that the obtained coatings have crystal structure of α-Al2O3 and SEM shows that α-Al2O3 coatings finely combined with substrate are compact, homogeneous and crackfree. So the method is a good and simple one in fabricating compact a-Al2O3 coatings.

KW - Aluminum isopropoxide

KW - Compact α-AlO coating

KW - Dispersion method

KW - Liquid-falling method

KW - Sol-gel method

UR - https://www.scopus.com/pages/publications/17244371274

M3 - 文章

AN - SCOPUS:17244371274

SN - 1005-0299

VL - 13

SP - 1

EP - 3

JO - Cailiao Kexue yu Gongyi/Material Science and Technology

JF - Cailiao Kexue yu Gongyi/Material Science and Technology

IS - 1

ER -

Study on compact α-Al₂O₃ coating fabricated by sol-gel method

Abstract

Keywords

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