한국분말재료학회지 (Journal of Powder Materials)

  • 제28권4호
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  • Pages.310-316
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  • 2021
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  • 2799-8525(pISSN)
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  • 2799-8681(eISSN)
한국분말재료학회 (*구 분말야금학회) (The Korean Powder Metallurgy & Materials Institute)
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Atmospheric plasma spray 공정으로 제조된 Y2O3 코팅층의 미세조직 및 기계적 특성에 미치는 분사 각도의 영향

Effect of Spray Angle the on Microstructure and Mechanical Properties of Y2O3 Coating Layer Manufactured by Atmospheric Plasma Spray Process

  • 황유진 (인하대학교 신소재공학과) ;
  • 김경욱 (인하대학교 신소재공학과) ;
  • 이호영 ((주)이에스티) ;
  • 권식철 (베델원(주) 표면처리센터) ;
  • 이기안 (인하대학교 신소재공학과)
  • 투고 : 2021.07.12
  • 심사 : 2021.07.30
  • 발행 : 2021.08.28
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초록

The effects of different spray angles (90°, 85°, 80°) on the microstructure and mechanical properties of a Y2O3 coating layer prepared using the atmospheric plasma spray (APS) process were studied. The powders employed in this study had a spherical shape and included a cubic Y2O3 phase. The APS coating layer exhibited the same phase as the powders. Thickness values of the coating layers were 90°: 203.7 ± 8.5 ㎛, 85°: 196.4 ± 9.6 ㎛, and 80°: 208.8 ± 10.2 ㎛, and it was confirmed that the effect of the spray angle on the thickness was insignificant. The porosities were measured as 90°: 3.9 ± 0.85%, 85°: 11.4 ± 2.3%, and 80°: 12.7 ± 0.5%, and the surface roughness values were 90°: 5.9 ± 0.3 ㎛, 85°: 8.5 ± 1.1 ㎛, and 80°: 8.5 ± 0.4 ㎛. As the spray angle decreased, the porosity increased, but the surface roughness did not show a significant difference. Vickers hardness measurements revealed values of 90°: 369.2 ± 22.3, 85°: 315.8 ± 31.4, and 80°: 267.1 ± 45.1 HV. It was found that under the condition of a 90° angle with the lowest porosity exhibited the best hardness value. Based on the aforementioned results, an improved method for the APS Y2O3 coating layer was also discussed.

키워드

과제정보

본 연구는 산업통상자원부(KIAT)의 차세대 지능형 반도체 기술 개발(20010610) 과제의 지원을 받아 연구되었으며 이에 감사드립니다.

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