1996 Fiscal Year Final Research Report Summary
Direct measurement of Force between Particles and the Nunerical Analysis of Packing Process
| Project/Area Number |
07650779
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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 |
Inorganic materials/Physical properties
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| Research Institution | Tokyo Institute of Technology |
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Principal Investigator |
MATSUO Yohtaro Tokyo Institute of Technology, Dept.Irorg.Mater.Prof., 工学部, 教授 (70016608)
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| Co-Investigator(Kenkyū-buntansha) |
MASUDA Kouichi Tokyo Institute of Technology, Dept.Irorg.Mater.Ass.Prof., 工学部, 助教授 (20191306)
YASUDA Eiichi Tokyo Institute of Technology, RIEM.Prof., 応用セラミックス研究所, 教授 (70016830)
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| Project Period (FY) |
1995 – 1996
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| Keywords | Ceramic / Compaction / Force between Particles |
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| Research Abstract |
The aim of this research is to find the optimum cyclic CIP condition using the experimental results of mutual force acting between ceramic particles (Cyclic CIP method was invented by us) by the atomic force microscope. The main results obtained in this research are as follows ;
1. The mutual force acting between silica particles was measured by an atomic force microscope. The measured value was 2.0*10-8 N.However, the reliable data could not be obtained for alumina, barium titanate, zirconia, silicon carbide and silicon nitride, which may be caused by electron charge. It was concluded from this experiment that an atomic force microscope with controlling atmosphere precisely is highly needed for measuring the mutual force except SiO2 powders.
2. Compaction of mono-dispersed spherical SiO2 powders was carried out by cyclic CIP.The obtained results was explained by Marcov stochastic process. A finite element method was successfully introduced for analyzing compaction process by cyclic CIP.
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