Tensile deformation of Si single crystals at high temperatures

Tubasa Suzuki, Masaki Tanaka, Tatsuya Morikawa, Yelm Okuyama, Jun Fujise, Toshiaki Ono

    研究成果: Chapter in Book/Report/Conference proceedingConference contribution

    抄録

    Czochralski silicon single crystals were deformed in tensile tests along the [134] direction at between 1173 K and 1373 K. Yield point phenomenon were observed in the specimens deformed at below 1273 K while continues yield was observed in the specimens deformed at above 1323 K. It is due to the effect of dislocation starvation in the used crystals. Work-hardening rates in stage II were consistent with those reported in fcc crystals such as copper. The onset of stage II was found to be active before the Schmid factor of the second slip system becomes larger than that of the primary slip system. Electron backscattered diffraction images indicated clear kink bands near grips and in the parallel portion. The kink bands were formed at the middle of stage I, which suggest that the formation of kink bands is a trigger of stage II.

    本文言語英語
    ホスト出版物のタイトルTHERMEC 2021 - International Conference on Processing and Manufacturing of Advanced Materials Processing, Fabrication, Properties, Applications
    編集者Mihail Ionescu, Christof Sommitsch, Cecilia Poletti, Ernst Kozeschnik, Tara Chandra
    出版社Trans Tech Publications Ltd
    ページ1443-1447
    ページ数5
    ISBN(印刷版)9783035736304
    DOI
    出版ステータス出版済み - 2021
    イベントInternational Conference on Processing and Manufacturing of Advanced Materials Processing, Fabrication, Properties, Applications, THERMEC 2021 - Vienna, オーストリア
    継続期間: 5 10 20215 14 2021

    出版物シリーズ

    名前Materials Science Forum
    1016 MSF
    ISSN(印刷版)0255-5476
    ISSN(電子版)1662-9752

    会議

    会議International Conference on Processing and Manufacturing of Advanced Materials Processing, Fabrication, Properties, Applications, THERMEC 2021
    Countryオーストリア
    CityVienna
    Period5/10/215/14/21

    All Science Journal Classification (ASJC) codes

    • Materials Science(all)
    • Condensed Matter Physics
    • Mechanics of Materials
    • Mechanical Engineering

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