Mechanisms of Cold Deformation under High Pressure of Superconductive MgB2 Ceramics
- 作者: Kuznetsova E.1, Krinitsina T.1, Sudareva S.1, Blinova Y.1, Degtyarev M.1, Akshentsev Y.1
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隶属关系:
- Mikheev Institute of Metal Physics, Ural Branch, Russian Academy of Sciences
- 期: 卷 119, 编号 8 (2018)
- 页面: 802-809
- 栏目: Strength and Plasticity
- URL: https://journals.rcsi.science/0031-918X/article/view/167768
- DOI: https://doi.org/10.1134/S0031918X18080070
- ID: 167768
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详细
Structures of the massive MgB2 samples deformed in Bridgman anvils that were initially in different structural states, namely, as-synthesized and post-four-stage-treated (via deformation + annealing), have been studied by methods of the X-ray diffraction, scanning and transmission electron microscopy, and measurements of microhardness. The process of the deformation of brittle ceramic samples of MgB2 under high pressure has been discussed. An analysis of the obtained data has shown that the plastic deformation of the superconductor MgB2 preliminarily compacted by a four-stage treatment has been implemented in the main through the mutual rotation of crystallites (grains) and by grain-boundary sliding without a noticeable refinement of the grain structure.
作者简介
E. Kuznetsova
Mikheev Institute of Metal Physics, Ural Branch, Russian Academy of Sciences
编辑信件的主要联系方式.
Email: monocrist@imp.uran.ru
俄罗斯联邦, Ekaterinburg, 620108
T. Krinitsina
Mikheev Institute of Metal Physics, Ural Branch, Russian Academy of Sciences
Email: monocrist@imp.uran.ru
俄罗斯联邦, Ekaterinburg, 620108
S. Sudareva
Mikheev Institute of Metal Physics, Ural Branch, Russian Academy of Sciences
Email: monocrist@imp.uran.ru
俄罗斯联邦, Ekaterinburg, 620108
Yu. Blinova
Mikheev Institute of Metal Physics, Ural Branch, Russian Academy of Sciences
Email: monocrist@imp.uran.ru
俄罗斯联邦, Ekaterinburg, 620108
M. Degtyarev
Mikheev Institute of Metal Physics, Ural Branch, Russian Academy of Sciences
Email: monocrist@imp.uran.ru
俄罗斯联邦, Ekaterinburg, 620108
Yu. Akshentsev
Mikheev Institute of Metal Physics, Ural Branch, Russian Academy of Sciences
Email: monocrist@imp.uran.ru
俄罗斯联邦, Ekaterinburg, 620108