2012 Fiscal Year Final Research Report
Understanding of the high-speed sintering mechanisms and improvement of the technical construction in the pulsed-current-sintering (PCS) processing
| Project/Area Number |
22560675
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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 | National Institute for Materials Science |
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Principal Investigator |
MORITA Koji 独立行政法人物質・材料研究機構, 先端材料プロセスユニット, 主幹研究員 (20354186)
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| Co-Investigator(Renkei-kenkyūsha) |
KIM Byung-nam 独立行政法人物質・材料研究機構, 先端材料プロセスユニット, 主席研究員 (50254149)
SAKKA Yoshio 独立行政法人物質・材料研究機構, 先端材料プロセスユニット, ユニット長 (00354217)
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| Project Period (FY) |
2010 – 2012
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| Keywords | パルス通電焼結 / 構造用セラミックス / スピネル / 透光性 |
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| Research Abstract |
In order to achieve an advanced pulsed-current-sintering (PCS) technique, this work was performed to understand the sintering mechanisms and to clarify the effect of the sintering parameters, such as heating rate, sintering temperature, dwelling time, loading schedule and so on, on PCS processing of MgAl2O4 spinel. It is found that the sintering behavior changes sensitively with the parameters and dense fine-grained ceramics can be fabricated by carefully optimizing the parameters. Loading at high temperatures, for example, can attain high density spinel even at a high heating rate of 100°C/min, and hence, can save the total processing time.
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