Transactions of the Korean Society of Mechanical Engineers A (대한기계학회논문집A)

The Korean Society of Mechanical Engineers (대한기계학회)
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Densification behavior of ceramic powder under cold compaction

냉간압축 하에서 세락믹 분말의 치밀화 거동

  • Choi, Seung-Wan (Dept. of Mechanical Engineering, Graduate School of Pohang University of Science and Technology) ;
  • Kim, Gi-Tae (Dept. of Mechanical Engineering, Pohang University of Science and Technology)
  • 최승완 (포항공과대학교 대학원 기계공학과) ;
  • 김기태 (포항공과대학교 기계공학과)
  • Published : 1998.04.01
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Abstract

Densification behavior of ceramic powder under cold compaction was investigated. Experimental data were obtained for zirconia powder and alumina powder under triaxial compression with various loading conditions. A special form of the Cap model was proposed from experimental data under triaxial compression for a yield function of ceramic powder. The proposed yield function was inplemented into a finite element program (ABAQUS) to study densification behaviors of zirconia and alumina powders under die compaction. The effect of friction between the powder and die wall was also investigated. Density distributions of powder compacts were measured and compared with finite element results.

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