|
Hokkaido University Collection of Scholarly and Academic Papers >
Graduate School of Engineering / Faculty of Engineering >
Peer-reviewed Journal Articles, etc >
MgB2 多結晶バルク体の力学特性
| Title: | MgB2 多結晶バルク体の力学特性 |
| Other Titles: | Mechanical Properties of Polycrystalline MgB2 Bulk |
| Authors: | 大橋, 徹也1 Browse this author | | 波多, 聰2 Browse this author | | 池田, 賢一3 Browse this author →KAKEN DB | | 中島, 英治4 Browse this author | | 山本, 明保5 Browse this author | | 下山, 淳一6 Browse this author | | 堀井, 滋7 Browse this author | | 岸尾, 光二8 Browse this author |
| Authors(alt): | Ohashi, Tetsuya1 | | Hata, Satoshi2 | | Ikeda, Ken-ichi3 | | Nakashima, Hideharu4 | | Yamamoto, Akiyasu5 | | Shimoyama, Jun-ichi6 | | Horii, Shigeru7 | | Kishio, Kohji8 |
| Keywords: | MgB2 bulk | | SiC | | C10H8 | | mechanical properties | | microstructure |
| Issue Date: | Aug-2008 |
| Publisher: | 低温工学・超電導学会 |
| Journal Title: | 低温工学 |
| Journal Title(alt): | Journal of the Cryogenic Society of Japan |
| Volume: | 43 |
| Issue: | 8 |
| Start Page: | 342 |
| End Page: | 348 |
| Publisher DOI: | 10.2221/jcsj.43.342 |
| Abstract: | Mechanical properties of superconducting MgB2 materials are important for their practical uses. This paper reports relationships between mechanical properties (Vickers hardness and fracture toughness) and the microstructure in MgB2 bulk materials. MgB2 bulk specimens were prepared by a Premix-PICT (powder in closed tube)-diffusion method. It was found that Vickers hardness and fracture toughness were improved up to about 1.5 times by co-doping with SiC and C10H8. It is interpreted that (i) the improvement of Vickers hardness by the co-doping is mainly due to reducing the MgB2 grain size, and (ii) the improvement of fracture toughness by the co-doping is mainly due to decreasing the amount of amorphous phases. |
| Type: | article |
| URI: | http://hdl.handle.net/2115/75355 |
| Appears in Collections: | 工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
|
Submitter: 池田 賢一
|
