2010 Fiscal Year Final Research Report
Development of Reusable Engineering Ceramics and Procedures to Recover the Strength by Healing the Defects
| Project/Area Number |
20360410
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Recycling engineering
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| Research Institution | Ibaraki University |
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Principal Investigator |
ABE Osami 茨城大学, 工学部, 教授 (40231948)
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| Project Period (FY) |
2008 – 2010
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| Keywords | 再利用 / エンジニアリングセラミックス / アルミナ / ジルコニア / 熱処理 / 酸化反応 / 強度 / 欠陥修復 |
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| Research Abstract |
Two kinds of reusable ceramics composites, NiAl-dispersed alumina and PSZ have been developed. The materials with controlled microstructure show the healing performance by the oxidation of NiAl providing the rebonding of cracks (<270μm) and compressive stress around the repaired cracks. The healing mechanism is applicable for more than 20 times. The simultaneous healing of multiplied cracks and the sliding damages formed on the wide surface is also demonstrated.
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