Effect of process conditions on crystal structure of Al PEO coating. I. Unipolar pulse and coating time (알루미늄 PEO 코팅의 결정상에 미치는 공정 조건에 대한 연구 I. Unipolar 펄스와 코팅시간)

Bae-Yeon Kim (김배연); 함재호; DeukYong Lee (이득용); Yongnam Kim (김용남); 전민석; Kim, KI-Youn (김기윤); Ji-Won Choi (최지원); 김석엽; 김광엽

doi:10.6111/JKCGCT.2014.24.2.059

Effect of process conditions on crystal structure of Al PEO coating. I. Unipolar pulse and coating time

Journal of the Korean Crystal Growth and Crystal Technology
Abbr : J. Korean Cryst. Growth Cryst. Technol.
2014, 24(2), pp.59-64
DOI : 10.6111/JKCGCT.2014.24.2.059
Publisher : The Korea Association Of Crystal Growth, Inc.
Research Area : Engineering > Materials Science and Engineering

Bae-Yeon Kim ¹, 함재호 ¹, DeukYong Lee ², Yongnam Kim ³, 전민석 ³, Kim, KI-Youn ¹, Ji-Won Choi ⁴, 김석엽 ⁵, 김광엽 ⁵

¹인천대학교
²대림대학교
³한국산업기술시험원
⁴한국과학기술연구원
⁵MST Technology

Accredited

ABSTRACT

Crystallographic phases of Plasma electrolytic oxidized Al alloy, A1050, were investigated. The electrolyte ofPEO was Na2Si2O3 and KOH. Unipolar pulse, 2000 μsec with 400 μsec + 420 V impulse, were applied for 2 min, 5 min,15 min, and 30 min. γ-Alumina, as well as α-alumina, was main crystal phase. γ-Alumina was appeared in the beginning,then the amount of α-alumina was increased with time, but the amount of γ-alumina remained constant without anyincreasing. So, it is concluded that plasma gas produce γ-alumina at the first, and then γ-alumina transform α-aluminafinally. During the transformation, high temperature of micro plasma gives transformation energy.

KEYWORDS

PEO, Al, Coating, Crystal structure, Unipolar pulse

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Journal of the Korean Crystal Growth and Crystal Technology 2023 KCI Impact Factor : 0.19

Effect of process conditions on crystal structure of Al PEO coating. I. Unipolar pulse and coating time

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* References for papers published after 2023 are currently being built.

Journal of the Korean Crystal Growth and Crystal Technology 2023 KCI Impact Factor : 0.19

Effect of process conditions on crystal structure of Al PEO coating. I. Unipolar pulse and coating time

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