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Title: Structure and mechanical properties of foils made of nanocrystalline beryllium

Abstract

The phase composition and structural features of (45–90)-μm-thick foils obtained from nanocrystalline beryllium during multistep thermomechanical treatment have been established using electron microscopy, electron diffraction, electron backscattering diffraction, and energy-dispersive analysis. This treatment is shown to lead to the formation of a structure with micrometer- and submicrometer-sized grains. The minimum average size of beryllium grains is 352 nm. The inclusions of beryllium oxide (BeO) of different modifications with tetragonal (sp. gr. P4{sub 2}/mnm) and hexagonal (sp. gr. P6{sub 3}/mmc) lattices are partly ground during deformation to a size smaller than 100 nm and are located along beryllium grain boundaries in their volume, significantly hindering migration during treatment. The revealed structural features of foils with submicrometer-sized crystallites provide the thermal stability of their structural state. Beryllium with this structure is a promising material for X-ray instrument engineering and for the production of ultrathin (less than 10 μm) vacuum-dense foils with very high physicomechanical characteristics.

Authors:
 [1]; ;  [2];  [1]; ; ; ; ;  [2]; ;  [1];  [3];  [1]
  1. Russian Academy of Sciences, Shubnikov Institute of Crystallography (Russian Federation)
  2. Bochvar High-Technology Scientific Research Institute for Inorganic Materials (Russian Federation)
  3. Peter the Great St. Petersburg Polytechnic University (Russian Federation)
Publication Date:
OSTI Identifier:
22645445
Resource Type:
Journal Article
Resource Relation:
Journal Name: Crystallography Reports; Journal Volume: 61; Journal Issue: 4; Other Information: Copyright (c) 2016 Pleiades Publishing, Inc.; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; BACKSCATTERING; BERYLLIUM; BERYLLIUM OXIDES; CRYSTALS; ELECTRON DIFFRACTION; ELECTRON MICROSCOPY; GRAIN BOUNDARIES; HCP LATTICES; MECHANICAL PROPERTIES; NANOSTRUCTURES; TETRAGONAL LATTICES; THERMOMECHANICAL TREATMENTS; X RADIATION

Citation Formats

Zhigalina, O. M., E-mail: zhigal@ns.crys.ras.ru, Semenov, A. A., Zabrodin, A. V., Khmelenin, D. N., Brylev, D. A., Lizunov, A. V., Nebera, A. L., Morozov, I. A., Anikin, A. S., Orekhov, A. S., Kuskova, A. N., Mishin, V. V., and Seryogin, A. V. Structure and mechanical properties of foils made of nanocrystalline beryllium. United States: N. p., 2016. Web. doi:10.1134/S1063774516040283.
Zhigalina, O. M., E-mail: zhigal@ns.crys.ras.ru, Semenov, A. A., Zabrodin, A. V., Khmelenin, D. N., Brylev, D. A., Lizunov, A. V., Nebera, A. L., Morozov, I. A., Anikin, A. S., Orekhov, A. S., Kuskova, A. N., Mishin, V. V., & Seryogin, A. V. Structure and mechanical properties of foils made of nanocrystalline beryllium. United States. doi:10.1134/S1063774516040283.
Zhigalina, O. M., E-mail: zhigal@ns.crys.ras.ru, Semenov, A. A., Zabrodin, A. V., Khmelenin, D. N., Brylev, D. A., Lizunov, A. V., Nebera, A. L., Morozov, I. A., Anikin, A. S., Orekhov, A. S., Kuskova, A. N., Mishin, V. V., and Seryogin, A. V. Fri . "Structure and mechanical properties of foils made of nanocrystalline beryllium". United States. doi:10.1134/S1063774516040283.
@article{osti_22645445,
title = {Structure and mechanical properties of foils made of nanocrystalline beryllium},
author = {Zhigalina, O. M., E-mail: zhigal@ns.crys.ras.ru and Semenov, A. A. and Zabrodin, A. V. and Khmelenin, D. N. and Brylev, D. A. and Lizunov, A. V. and Nebera, A. L. and Morozov, I. A. and Anikin, A. S. and Orekhov, A. S. and Kuskova, A. N. and Mishin, V. V. and Seryogin, A. V.},
abstractNote = {The phase composition and structural features of (45–90)-μm-thick foils obtained from nanocrystalline beryllium during multistep thermomechanical treatment have been established using electron microscopy, electron diffraction, electron backscattering diffraction, and energy-dispersive analysis. This treatment is shown to lead to the formation of a structure with micrometer- and submicrometer-sized grains. The minimum average size of beryllium grains is 352 nm. The inclusions of beryllium oxide (BeO) of different modifications with tetragonal (sp. gr. P4{sub 2}/mnm) and hexagonal (sp. gr. P6{sub 3}/mmc) lattices are partly ground during deformation to a size smaller than 100 nm and are located along beryllium grain boundaries in their volume, significantly hindering migration during treatment. The revealed structural features of foils with submicrometer-sized crystallites provide the thermal stability of their structural state. Beryllium with this structure is a promising material for X-ray instrument engineering and for the production of ultrathin (less than 10 μm) vacuum-dense foils with very high physicomechanical characteristics.},
doi = {10.1134/S1063774516040283},
journal = {Crystallography Reports},
number = 4,
volume = 61,
place = {United States},
year = {Fri Jul 15 00:00:00 EDT 2016},
month = {Fri Jul 15 00:00:00 EDT 2016}
}