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] A.L. Yerokhin / 1999 / Plasma electrolysis for surface engineering / Surf. Coat. Technol 122 : 73~

[journal] X. Nie / 1999 / Thickness effects on themechanical properties of micro-arc discharge oxidecoatings on aluminum alloys / Surf. Coat. Technol 116 : 1055~

[journal] X. Nie / 2002 / Abrasive waer/corrosion propertiesand TEM analysis of Al2O3 coatings fabricatedusing plasma electrolysis / Surf. Coat. Technol 149 : 245~

[journal] A.L. Yerokin / 2005 / Oxide ceramiccoatings on aluminium alloys produced by a pulsedbipolar plasma electrolytic oxidation process / Surf. Coat. Technol 199 : 150~

[journal] H. Kalkanci / 2008 / The effect of processparameters on mullite-based plasma electrolytic oxidecoatings / Surf. Coat. Technol 203 : 15~

[journal] F.-Y. Jin / 2009 / Infrared reflection by aluminafilms produced on aluminum alloy by plasma electrolyticoxidation / Mater. Chem. Phys 114 : 398~

[journal] Y.-J. Oh / 2009 / Effect of alloyingelements on microstucture and protective proties ofAl2O3 coatings formed on aluminum alloy substrates byplasma electrolysis / Surf. Coat. Technol 204 : 141~

[journal] G. Lv / 2006 / Characteristic ofceramic coatings on aluminum by plasma electrolyticoxidation in silicate and phosphate electrolyte / Appl. Surf. Sci 253 : 2947~

[journal] W. Xue / 2001 / Microstructure and properties of ceramic coatings producedon 2024 aluminum alloy by microarc oxidation / J. Mater. Sci 36 : 2615~

[journal] J. Tian / 2002 / Structure and antiwearbehavior of micro-arc oxidized coatings on alluminumalloy / Surf. Coat. Technol 154 : 1~

[journal] E. Arslan / 2009 / High temperature wear behavior ofaluminum oxide layers by AC micro arc oxidation / Surf. Coat. Technol 204 : 829~

[journal] G. Sundararajan / 2003 / Mechanismsunderlying the formation of thick alumina coatingsthrough the MAO coating technology / Surf. Coat. Technol 167 : 269~

[journal] J.A. Curran / 2005 / The thermal conductivity of plasma electrolytic oxide coatings on aluminum andmagnesium / Surf. Coat. Technol 197 : 177~

[journal] J.A. Curran / 2005 / Thermo-physical propertiesof plasma electrolytic oxide coatings on aluminum / Surf. Coat. Technol 199 : 168~

[journal] K. Wang / 2009 / Effects of hybrid voltages on oxide formation on6061 Al-alloys during plasma electrolytic oxidation / Chinese Journal of Aeronautics 22 : 564~

[journal] K. Wang / 2009 / Effects of electrolytes variation on formation ofoxide layers of 6061 Al alloys by plasma electrolyticoxidation / Trans. Nonferrous Met. Soc. China 19 : 866~

[journal] J.A. Curran / 2007 / Mullite-rich plasma electrolytic oxide coatingsfor thermal barrier applications / Surf. Coat. Technol 201 : 8683~

[journal] W. Gu / 2007 / haracterization of ceramic coatings producedby plasma electrolytic oxidation of aluminumalloy / Mater. Sci. Eng. A 447 : 158~

[journal] 김배연 / 2010 / Effect of Al Alloy Composition on Physical and Crystallographical Properties of Plasma Electrolytic Oxidized Coatings I. Physical Properties of PEO Layer / 한국세라믹학회지 / 한국세라믹학회 47(3) : 256~261

[journal] 김배연 / 2010 / Effect of Al Alloy Composition on Physical and Crystallographical Properties of Plasma Electrolytic Oxidized Coatings II. Crystallographic Analysis of PEO Layer / 한국세라믹학회지 / 한국세라믹학회 47(4) : 283~289

[journal] 김경인 / 2014 / Synthesis of high purity aluminum nitride nanopowder by RF induction thermal plasma / 한국결정성장학회지 / 한국결정성장학회 24(1) : 1~7

[journal] 박영수 / 2012 / Synthesis of boehmite powder from aluminum etching solution / 한국결정성장학회지 / 한국결정성장학회 22(6) : 286~290

[confproc] A.G. Rakoch / 2005 / Model conceptions of metallic materialmicroarc oxidation (MAO) process / New Achievementsin Materials Science II France-Russia Seminar,Moscow, Russia, I. Coatings, Films and Surface Engineering : 17~

[journal] R.O. Hussein / 2010 / Influenceof process parameters on electrolytic plasma dischargingbehavior and aluminum oxide coating microstructure / Surf. Coat. Technol 205 : 1659~

[thesis] C. Ruberto / 2001 / Metastable alumina from theory : Bulk,surface, and growth of κ-Al2O3 / 박사 / Chalmers Univ. Tech. and Gteborg Univ

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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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