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Fabrication and characteristics of suspension-plasma-sprayed yttrium oxide coatings

  • Journal of the Korean Crystal Growth and Crystal Technology
  • Abbr : J. Korean Cryst. Growth Cryst. Technol.
  • 2019, 29(6), pp.359-364
  • DOI : 10.6111/JKCGCT.2019.29.6.359
  • Publisher : The Korea Association Of Crystal Growth, Inc.
  • Research Area : Engineering > Materials Science and Engineering
  • Received : November 19, 2019
  • Accepted : December 12, 2019
  • Published : December 31, 2019

Min Suk Kim 1 Seong Min So 2 HyungSun Kim 3 Seong Hwan park 4 Young Jae Ham 4 Minseok Jeon 5 Kyounghun Kim 2

1인하대학교 신소재공학과
2한국세라믹기술원
3인하대학교
4(주)한화 구미사업장 개발1팀
5한국산업기술시험원

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ABSTRACT

The suspension plasma spraying is a modification of conventional plasma spray techniques that has beendeveloped to overcome the challenge of using fine particles in plasma spray processes. In this study, microstructuredevelopments and mechanical property of yttrium oxide (Y2O3) coatings prepared by the suspension plasma spray coatingtechnique have been investigated to determine the effect of processing parameters including plasma gun current and totalgas flow. The results showed that a highly dense Y2O3 coating having low porosity of 0.2 vol% without any lamellarstructures can be achieved at the optimum condition of gun current 200 A and total gas flow 220 L/min.

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