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J. Korean Ceram. Soc. > Volume 46(3); 2009 > Article
Journal of the Korean Ceramic Society 2009;46(3): 295.
doi: https://doi.org/10.4191/kcers.2009.46.3.295
Al1050 합금에 Plasma Electrolytic Oxidation으로 형성된 산화피막 분석
김배연, 이득용1, 김용남2, 전민석2, 유완식3, 김광엽3
인천대학교 신소재공학과
1대림대학교 재료정보학과
2한국산업기술시험원
Analysis of Oxide Coatings Formed on Al1050 Alloy by Plasma Electrolytic Oxidation
Bae-Yeon Kim, Deuk-Yong Lee1, Yong-Nam Kim2, Min-Seok Jeon2, Whan-Sik You3, Kwang-Youp Kim3
Department of Advanced Materials Engineering, University of Incheon
1Department of Materials Engineering, Daelim University College
2Korea Testing Laboratory
3MST Technology
ABSTRACT
The crystal structure of surface coatings on Al1050 alloy by PEO (Plasma Electrolytic Oxidation), were investigated. The electrolyte for PEO was Na-Si-P system solution. The main crystalline phase were $gamma$-alumina and $alpha$-alumina. Crystallinity was increased with applied voltage and applied time. The dominant crystalline phase were affected not only chemical composition of Al alloy substrate and electrolyte, but also the +/- ratio of applied voltage.
Key words: PEO, Coating, Alumina, Crystal structure, XRD
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