| Project/Area Number |
13650085
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Materials/Mechanics of materials
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| Research Institution | Toyohashi University of Technology |
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Principal Investigator |
MORI Ken-ichiro Toyohashi University of Technology, Faculty of Engineering, Professor, 工学部, 教授 (80127167)
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| Co-Investigator(Kenkyū-buntansha) |
MAKI Seijiro Toyohashi University of Technology, Faculty of Engineering, Associate Professor, 工学部, 助教授 (20124315)
UMEDA Manabu INAX Corporation, Basic Research Center, Researcher, 基礎研究所, 研究員
MATSUBARA Hideaki Japan Fine Ceramics Center, Research and Development Laboratory, Manager, 試験研究所, 副所長
HARADA Yasunori Toyohashi University of Technology, Faculty of Engineering, Research Associate, 工学部, 助手 (30218656)
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| Project Period (FY) |
2001 – 2002
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| Project Status |
Completed (Fiscal Year 2002)
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| Budget Amount *help |
¥3,300,000 (Direct Cost: ¥3,300,000)
Fiscal Year 2002: ¥1,100,000 (Direct Cost: ¥1,100,000)
Fiscal Year 2001: ¥2,200,000 (Direct Cost: ¥2,200,000)
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| Keywords | micro-macro method / sintering / Monte Carlo method / viscoplastic finite element method / coupled method / diffusion / grain growth |
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| Research Abstract |
A micro-macro method for simulating a sintering process of ceramic powder compacts based on the Monte Carlo and finite element methods is proposed. Macroscopic non-uniform shrinkage during the sintering is calculated by the viscoplastic finite element method. In the microscopic approach using the Monte Carlo method, powder particles and pores among the particles are divided into many cells, and the growth of grains in the particles and the disappearance of pores are simulated by means of the Potts model. The microscopic and macroscopic approaches are coupled by exchanging microscopic and macroscopic information in each step. In the Monte Carlo method, the effect of macroscopic plastic deformation on the microstructural change is taken into consideration by including plastic strain-rate calculated by the finite element method in the disappearance frequency of pore cells. The shrinkage behavior in the sintering of circular two-layer compacts is simulated by the proposed micro-macro method.
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