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J. Korean Ceram. Soc. > Volume 47(3); 2010 > Article
Journal of the Korean Ceramic Society 2010;47(3): 256.
doi: https://doi.org/10.4191/kcers.2010.47.3.256
플라즈마 전해 산화 코팅에 있어서 알루미늄 합금 모재 성분의 물리적, 결정학적 영향 I. PEO 층의 물성
김배연, 이득용1, 김용남2, 전민석2, 송준광2, 김성엽3, 김광엽3
인천대학교 신소재공학과
1대림대학교 재료정보학과
2한국산업기술시험원 재료평가센터
Effect of Al Alloy Composition on Physical and Crystallographical Properties of Plasma Electrolytic Oxidized Coatings I. Physical Properties of PEO Layer
Bae-Yeon Kim, Deuk-Yong Lee1, Yong-Nam Kim2, Min-Seok Jeon2, Jun-Kwang Song2, Sung-Youp Kim3, Kwang-Youp Kim3
Department of Advanced Materials Engineering, University of Incheon
1Department of Materials Engineering, Daelim University College
2Material Testing Center, Korea Testing Laboratory
3MST Technology
Physical properties of Plasma electrolytic oxidized 8 different types of Al alloys, A-1100, A-2024, A-5052, A-6061, A-6063, A-7075, ACD-7B and ACD-12 were investigated. The electrolyte for PEO was $Na_2SiO_3$ solutions with NaOH and some alkali earthen metal salts. Porous layer near the surface of PEO coating was not found, and surface roughness Ra50 was below 2.5 ${mu}m$. Surface roughness was affected by growth rate of plasma electrolytic oxidized layer, not by Si content in Al alloy.
Key words: PEO, Coating, Crystal structure, Physical properties
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