燃焼合成によるβ/O´-SiAlON粉末を焼結したSi合金の表面強度解析

Material type: 文書・図像類

Author: 本田, 知己||松下晶子

Publisher: 一般社団法人日本機械学会

Publication date: 2019-02-25

Material Format: Digital

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Note (General)：: To improve the fuel efficiency of automobiles, the development of lightweight and high-strength material is required. Silicon, as a raw material for t...

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Material Type: 文書・図像類
Title: 燃焼合成によるβ/O´-SiAlON粉末を焼結したSi合金の表面強度解析
Author/Editor: 本田, 知己||松下晶子
Author Heading: 本田, 知己||松下晶子
Publication, Distribution, etc.: 一般社団法人日本機械学会
Publication Date: 2019-02-25
Publication Date (W3CDTF): 2019-02-25
Alternative Title: Surface strength analysis of silicon alloys sintered using the combustion synthesized β/O'-SiAlON powders
Periodical title: 日本機械学会論文集=Transactions of the JSME
ISSN (Periodical Title): ISSN : 2187-9761
Text Language Code: jpn
Target Audience: 一般
Note (General): To improve the fuel efficiency of automobiles, the development of lightweight and high-strength material is required. Silicon, as a raw material for this purpose has attracted attention. So as method using silicon, Si alloys have been developed. Combustion synthesized β/O'-SiAlON powders were sintered by the hot pressing. Combustion synthesis is known as a self-propagating high-temperature synthesis (SHS). It is possible to design various materials with different properties by varying the ratio of Si, Al, O, and N because the composition of Si alloys is similar to that of SiAlON. In the present study, we prepared five types of Si alloys (S1, S2, O25, O75 and O100), which are similar to material design concept of β/O'-SiAlON having heat resistance and oxidation resistance, and used Si3N4 as a comparative material. We investigated the surface strength by performing the scratch test. In scratch tests, the load at which the fracture progresses to large-scale brittle fracture becomes larger in the order of O100, S1, O75, Si3N4, O25 and S2. The crystallite size of O25 is the smallest in Si alloys. Then, the composition of Al in S2 is the largest in Si alloys. Therefore, it found that Si alloy, which has small crystallite and contains more Al, shows high critical fracture load.
Access Restrictions: 限定公開
Rights (production): 〓 2019 一般社団法人日本機械学会
Related Material (DOI): 10.1299/transjsme.18-00225
Data Provider (Database): 国立情報学研究所 : 学術機関リポジトリデータベース（IRDB）（機関リポジトリ）
https://irdb.nii.ac.jp
Original Data Provider (Database): 福井大学 : 福井大学学術機関リポジトリ