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Computer aided simulation of spark plasma sintering process (Part 2 : analysis)  

Keum Y.T. (CPRC)
Jung S.C. (Department of Precision Mechanical Engineering, Graduate School in Hanyang University)
Jean J.H. (Department of Precision Mechanical Engineering, Graduate School in Hanyang University)
Publication Information
Journal of the Korean Crystal Growth and Crystal Technology / v.16, no.1, 2006 , pp. 43-48 More about this Journal
Abstract
In this Part 2, the grain growth processes of $Al_2O_3$ ceramics is numerically simulated using Monte Carlo method (MCM) and finite element method (FEM) and the pore sizes are analyzed. As the green ceramics whose thermal conductivities in high temperatures are generally low are sintered by the plasma heat and are rapidly cooled, the grain growth of the sintered body in the center is different from that in the outer. Also, even in the same sintering temperature, the pore size differs according to the pressing pressure. In order to prove the difference, the temperature distribution of the sintered body was analyzed using the finite element method and then the grain growth process associated with pressing pressures and relative densities was simulated using Monte Carlo method.
Keywords
Spark plasma sintering; Monte Carlo method; Finite element method; Computer simulation; Sintering temperature; Pressing pressure; Grain growth; Relative density;
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