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This article is cited in 1 scientific paper (total in 1 paper)
Opto-acoustic and acoustic microscopy studies of microstructure, elasticity and defects in B44C/C6060 and c-BN/C6060 nanocomposites
Vyacheslav M. Prokhorova, Egor S. Morokovb, Danila A. Ovsyannikova a Technological Institute for Superhard and Novel Carbon Materials, Centralnaya 7a, Troitsk, Moscow, 108840, Russia
b N. M. Emanuel Institute of Biochemical Physics RAS (IBCP RAS),
Kosigina, 4, Moscow, 119334, Russia
Abstract:
Carbon-ceramic nanocomposites based on boron carbide with fullerene C6060 (B44C/C6060) and cubic boron nitride with C6060 (c-BN/C6060) were prepared by a high-energy ball milled pre-treatment of the initial mixture of components with the addition of a CS22 solvent followed by a high-pressure/high-temperature consolidation. Elastic properties of the composites were characterized by the elastic moduli calculated on the bases of the experimentally measured density and values of velocities of the longitudinal and transverse bulk acoustic waves (BAW) in the samples. The BAW velocities were measured with a pulse-echo method by laser optoacoustic excitation of ultrasonic pulses. Acoustic microscopy was used to visualize the bulk microstructure and internal defects, and to measure the local values of BAW velocities of specimens on which the elastic moduli were calculated.
Keywords:
elastic moduli, acoustic microscopy, laser optoacoustic, carbon-ceramic nanocomposites.
Received: 10.05.2018 Received in revised form: 10.08.2018 Accepted: 20.10.2018
Citation:
Vyacheslav M. Prokhorov, Egor S. Morokov, Danila A. Ovsyannikov, “Opto-acoustic and acoustic microscopy studies of microstructure, elasticity and defects in B44C/C6060 and c-BN/C6060 nanocomposites”, J. Sib. Fed. Univ. Math. Phys., 12:1 (2019), 85–93
Linking options:
https://www.mathnet.ru/eng/jsfu740 https://www.mathnet.ru/eng/jsfu/v12/i1/p85
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