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多孔質セラミックスの破壊靭性評価
http://hdl.handle.net/2237/9161
http://hdl.handle.net/2237/9161121f951e-8e9b-472d-ab60-a7e33e9865e7
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
JsMecEngA_67-660-1378.pdf (860.9 kB)
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| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2007-12-17 | |||||
| タイトル | ||||||
| タイトル | 多孔質セラミックスの破壊靭性評価 | |||||
| 言語 | ja | |||||
| その他のタイトル | ||||||
| その他のタイトル | Evaluation of Fracture Toughness of Porous Ceramics | |||||
| 言語 | en | |||||
| 著者 |
坂井田, 喜久
× 坂井田, 喜久× SAKAIDA, Yoshihisa× 田中, 啓介× TANAKA, Keisuke |
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| アクセス権 | ||||||
| アクセス権 | open access | |||||
| アクセス権URI | http://purl.org/coar/access_right/c_abf2 | |||||
| 権利 | ||||||
| 言語 | ja | |||||
| 権利情報 | 日本機械学会 | |||||
| 権利 | ||||||
| 言語 | ja | |||||
| 権利情報 | 本文データは学協会の許諾に基づきCiNiiから複製したものである。 | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | Porous Ceramics | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | Fracture Toughness | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | Indentation Fracture Method | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | Single-edge Precracked Beam Method | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | Single-Edge V-Notched Beam Method | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | R-curve Behavior | |||||
| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | The indentation fracture (IF) method, the single-edge precracked beam (SEPB) method, and the single-edge V-notched beam (SEVNB) method were applied to evaluate the fracture toughness of four kind of porous ceramics of SiC, Al2O3 and Mg2Al4Si5O18 with porosity ranging from 37 to 43％. The microstructures of these materials were composed of ceramics grains, glassy grain boundaries and pores. Each grain was joined together with the glassy grain boundary phase. The IF and SEPB methods were not applicable because both precracks and indenter traces were not visible. On the other hand, the SEVNB method was applicable because the V-notch could be easily machined by grinding. In the case of the SEVNB method, the applied load versus back-face strain plots under four point bending showed nonlinearity prior to the maximum load. The R-curve behavior was estimated from the compliance change of specimens. The fracture toughness of porous ceramics was smaller than that of dense ceramics, and increased with increasing crack extension. Since the stable crack predominantly propagated along glassy grain boundaries, the R-curve behavior depended on the loading rate and matrix grain size. The increment of R-curve by grain briding got bigger for coarser-grain sized ceramics. | |||||
| 言語 | en | |||||
| 出版者 | ||||||
| 出版者 | 日本機械学会 | |||||
| 言語 | ja | |||||
| 言語 | ||||||
| 言語 | jpn | |||||
| 資源タイプ | ||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
| 資源タイプ | journal article | |||||
| 出版タイプ | ||||||
| 出版タイプ | VoR | |||||
| 出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
| 関連情報 | ||||||
| 関連タイプ | isVersionOf | |||||
| 識別子タイプ | URI | |||||
| 関連識別子 | http://ci.nii.ac.jp/naid/110002369940/ | |||||
| ISSN | ||||||
| 収録物識別子タイプ | PISSN | |||||
| 収録物識別子 | 0387-5008 | |||||
| 書誌情報 |
ja : 日本機械学會論文集 A編 巻 67, 号 660, p. 1378-1385, 発行日 2001-08 |
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| フォーマット | ||||||
| 値 | application/pdf | |||||
| 著者版フラグ | ||||||
| 値 | publisher | |||||
| URI | ||||||
| 識別子 | http://hdl.handle.net/2237/9161 | |||||
| 識別子タイプ | HDL | |||||
