한국재료학회지 (Korean Journal of Materials Research)

  • 제27권12호
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  • Pages.716-721
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  • 2017
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  • 1225-0562(pISSN)
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  • 2287-7258(eISSN)
한국재료학회 (Materials Research Society of Korea)
권호 표지
DOI QR코드

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SiAlON 원료분말제조를 위한 분무건조 과립분말의 형상과 크기에 미치는 공정변수효과

Effect of Process Parameters on the Morphology and Size of Spray-Dried Granule Powder for Fabrication of SiAlON Raw Material

  • 최재형 (한국세라믹기술원 이천분원 엔지니어링세라믹센터) ;
  • 이소율 (한국세라믹기술원 이천분원 엔지니어링세라믹센터) ;
  • 한윤수 (한국세라믹기술원 이천분원 엔지니어링세라믹센터) ;
  • 이성민 (한국세라믹기술원 이천분원 엔지니어링세라믹센터) ;
  • 남산 (고려대학교 신소재공학과) ;
  • 김성원 (한국세라믹기술원 이천분원 엔지니어링세라믹센터)
  • Choi, Jae-Hyeong (Engineering Ceramics Center, Korea Institute of Ceramic Engineering & Technology) ;
  • Lee, Soyul (Engineering Ceramics Center, Korea Institute of Ceramic Engineering & Technology) ;
  • Han, Yoonsoo (Engineering Ceramics Center, Korea Institute of Ceramic Engineering & Technology) ;
  • Lee, Sung-Min (Engineering Ceramics Center, Korea Institute of Ceramic Engineering & Technology) ;
  • Nahm, Sahn (Department of Materials Science and Engineering, Korea University) ;
  • Kim, Seongwon (Engineering Ceramics Center, Korea Institute of Ceramic Engineering & Technology)
  • 투고 : 2017.11.17
  • 심사 : 2017.11.30
  • 발행 : 2017.12.27
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초록

SiAlON-based ceramics are some of the most typical ceramic materials used as cutting tools for HRSA(Heat Resistant Super-Alloys). SiAlON can be fabricated using ceramic processing, such as mixing, granulation, compaction, and sintering. Spray drying is a widely-used method for producing a granular powder of controlled morphology and size with flowability. In this study, we report a systematic investigation aimed at optimizing spherical granule morphology by controlling spray-drying parameters such as gas flow and feed rate. Before spray drying, the viscosities of the raw material slurries were also optimized with the amount of dispersant added.

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