B4C protective coating under irradiation by QSPA-T intensive plasma fluxes


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The effect of the QSPA-T pulsed plasma irradiation on the crystalline boron carbide B4C 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/m2. 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/m2. Constitutive surface deterioration was not detected and the boron carbide coating kept crystal structure B4C throughout the irradiation zone at the surface depth no less 2 μm.

Sobre autores

O. Buzhinskij

Troitsk Institute for Innovation and Fusion Research (TRINITI)

Email: lbb@plasma.mephi.ru
Rússia, ul. Pushkovykh, vladenie 12, Troitsk, Moscow oblast, 142190

V. Barsuk

Troitsk Institute for Innovation and Fusion Research (TRINITI)

Email: lbb@plasma.mephi.ru
Rússia, ul. Pushkovykh, vladenie 12, Troitsk, Moscow oblast, 142190

L. Begrambekov

National Research Nuclear University MEPhI (Moscow Engineering Physics Institute)

Autor responsável pela correspondência
Email: lbb@plasma.mephi.ru
Rússia, Kashirskoe sh. 31, Moscow, 115409

N. Klimov

Troitsk Institute for Innovation and Fusion Research (TRINITI); National Research Nuclear University MEPhI (Moscow Engineering Physics Institute)

Email: lbb@plasma.mephi.ru
Rússia, ul. Pushkovykh, vladenie 12, Troitsk, Moscow oblast, 142190; Kashirskoe sh. 31, Moscow, 115409

V. Otroshchenko

Troitsk Institute for Innovation and Fusion Research (TRINITI)

Email: lbb@plasma.mephi.ru
Rússia, ul. Pushkovykh, vladenie 12, Troitsk, Moscow oblast, 142190

A. Putric

Troitsk Institute for Innovation and Fusion Research (TRINITI)

Email: lbb@plasma.mephi.ru
Rússia, ul. Pushkovykh, vladenie 12, Troitsk, Moscow oblast, 142190

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