1993 Fiscal Year Final Research Report Summary
Development of Manufacturing Systems of High-Reliability Ceramics by Cyclic CIP Concept
| Project/Area Number |
03555164
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| Research Category |
Grant-in-Aid for Developmental Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
無機工業化学・無機材料工学
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| Research Institution | Tokyo Institute of Technology |
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Principal Investigator |
YASUDA Kouichi Tokyo Institute of Technology, Faculty of Engineering, Research Associate, 工学部, 助手 (20191306)
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| Co-Investigator(Kenkyū-buntansha) |
YASUDA Eiichi Tokyo Institute of Technology, Research Laboratory of Engineering Materials, Ass, 工業材料研究所, 教授 (70016830)
FUKUNAGA Osamu Tokyo Institute of Technology, Faculty of Engineering, Professor, 工学部, 教授 (20199251)
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| Project Period (FY) |
1991 – 1993
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| Keywords | Cyclic CIP / Forming of ceramic powders / Strength reliability / Forming additives |
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| Research Abstract |
The investigators have developed a new forming method-Cyclic CIP Method-, and have found that this method is remarkably effective in obtaining high density and high isotropic ceramic-powder compact. Moreover, sintered body after cyclic-CIPed has high strength-reliability.
In this study, based on the above results, a high performance Cyclic CIP forming/sintering system has been developed. A new constitutive equation for cyclic CIP forming was formulated based on the observation of powder-compacting-processes by Scanning Electron Microscopy. This equation is valid for many kinds of ceramic powders, for instance, 2 kinds of alumina powders, 3 kinds of carbon powders, SiC powders, etc. Some effects of forming additives were also examined. It was found that the strengths of agglomerates should be less than a certain value in order to obtain a high-density and high-isotropic compact, which leads to a high reliability sintered body.
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