스파크 플라즈마 소결공정의 전산모사(1부 : 수식화)
Computer aided simulation of spark plasma sintering process (Part 1 : formulation)
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초록
본 1부 연구에서는 스파크 플라스마 열에 의한 그린 세라믹의 소결에서 열전달 및 가압력으로 인한 상대밀도 의 변화를 유한요소법(FEM)으로 해석하고 그 결과에 따른 입자성장을 몬테카를로법(MCM)을 이용하여 전산모사하는 방법 을 제시하기 위하여 SPS의 FEM 해석과 MCM 해석의 이론적 배경을 기술한다.
Abstract
Spark plasma sintering processes have been rapidly introduced recently to improve the quality and productivity of ceramic products and to solve the problem of environmental pollutions. Sintering temperatures and pressing pressures in the spark plasma sintering process are known to be the important factors highly affecting the quality of the ceramics. In this research, in order to see the effects of sintering temperatures and pressing pressures on the grain growth during the spark plasma sintering process of Al2O3, the grain growth processes associated with sintering temperatures and pressing pressures are simulated by the Monte Carlo method (MCM) and the finite element method (FEM). In this Part 1, the formulations for the simulation, which is the theoretical background of Part 2, are introduced.럭
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