Structure and Properties of the Surface Layer of B 4 C Ceramic Treated with an Intense Electron Beam

Yu. F. Ivanov; O. L. Khasanov; M. S. Petyukevich; G. V. Smirnov; V. V. Polisadova; Z. G. Bikbaeva; A. D. Teresov; M. P. Kalashnikov; O. S. Tolkachov

doi:10.1134/S2075113318030152

Structure and Properties of the Surface Layer of B₄C Ceramic Treated with an Intense Electron Beam

作者: Ivanov Y.¹^,2, Khasanov O.¹, Petyukevich M.¹, Smirnov G.³, Polisadova V.¹, Bikbaeva Z.¹, Teresov A.², Kalashnikov M.¹, Tolkachov O.¹
隶属关系:
1. National Research Tomsk Polytechnic University
2. Institute of High-Current Electronics, Siberian Branch
3. Tomsk State University of Control Systems and Radioelectronics
期: 卷 9, 编号 3 (2018)
页面: 437-441
栏目: Functional Coatings and Surface Treatment
URL: https://journals.rcsi.science/2075-1133/article/view/207426
DOI: https://doi.org/10.1134/S2075113318030152
ID: 207426

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Using transmission and scanning electron microscopy, a pulsed intense electron beam irradiation of a sintered boron carbide ceramic is shown to lead to the formation of a modified surface layer with a nonporous polycrystalline structure and initiate microtwinning and the formation of extended submicron- and nanocrystalline interlayers along the boundaries of boron carbide crystallites. The observed structural changes lead to an increase in the fatigue life of the modified layer.