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Author Buzhinskij, O. I. ♦ Barsuk, V. A. ♦ Begrambekov, L. B. ♦ Klimov, N. S. ♦ Otroshchenko, V. G. ♦ Putric, A. B.
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword MATERIALS SCIENCE ♦ BORON CARBIDES ♦ CRYSTAL STRUCTURE ♦ PEAK LOAD ♦ PLASMA ♦ POWER DENSITY ♦ PROTECTIVE COATINGS ♦ PULSED IRRADIATION ♦ RADIATION EFFECTS ♦ SURFACE AREA ♦ THICKNESS
Abstract The effect of the QSPA-T pulsed plasma irradiation on the crystalline boron carbide B{sub 4}C coating was examined. The duration of the rectangular plasma pulses was 0.5 ms with an interval of 5–10 min between pulses. The maximum power density in the central part of plasma stream was 1 GW/m{sup 2}. The coating thickness varied from 20 to 40 μm on different surface areas. Modification of the surface layers and transformation of the coating at elevated temperature under plasma pulse irradiation during four successive series of impulses are described. It is shown that the boron carbide coating withstood the full cycle of tests under irradiation with 100 plasma pulses with peak power density of 1GW/m{sup 2}. Constitutive surface deterioration was not detected and the boron carbide coating kept crystal structure B{sub 4}C throughout the irradiation zone at the surface depth no less 2 μm.
ISSN 10637788
Educational Use Research
Learning Resource Type Article
Publisher Date 2016-12-15
Publisher Place United States
Journal Physics of Atomic Nuclei
Volume Number 79
Issue Number 7


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