Fabrication of 3Y-TZP/SUS316 Functionally Graded Material by Slip Casting Method Using Alumina Mold

알루미나몰드를 사용한 슬립캐스팅법에 의한 3Y-TZP/SUS316계 경사기능재료의 제조

  • 여정구 (한양대학교 공과대학 무기재료공학과) ;
  • 정연길 (한양대학교 공과대학 무기재료공학과) ;
  • 이세훈 (한양대학교 공과대학 무기재료공학과) ;
  • 최성철 (한양대학교 공과대학 무기재료공학과)
  • Published : 1997.01.01


3Y-TZP/SUS316 Functionally Graded Material (FGM) was fabricated by slip casting method. Alumina mold was used to overcome problems of gypsum mold in slip casting process, and the optimal dispersion con-ditions of 3Y-TZP/SUS316 binary slurries was determined using electrokinetic sonic amplitude and a viscometer, and observing sedimentation behavior. The properties of the specimens casted by gypsum mold and alumina mold were compared in terms of changes in shrinkage rate, drying and sintering conditions, and microstructure. It was found that the specimens obtaine from the alumina mold showed a clean surface, easier thickness control of each layer, and higher productivity. Especially, no degradation was observed in the SUS316 prepared using alumina mold. Thus it is desirable to use porous alumina mold rather than gyp-sum mold for the slip casting of 3Y-TZP/SUS316-FGM.


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