Open AccessInfluence of destruction of the bismuth crystal structure on the features of measuring pulsed heat fluxes using a sensor based on anisotropic thermoelements
Author(s) -
П. А. Попов,
S. A. Poniaev,
V. A. Sakharov,
B. I. Reznikov,
N. A. Monakhov
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1697/1/012227
Subject(s) - materials science , heat flux , anisotropy , reflection (computer programming) , bismuth , signal (programming language) , crystal (programming language) , shock wave , layer (electronics) , flux (metallurgy) , shock (circulatory) , optics , mechanics , composite material , optoelectronics , heat transfer , metallurgy , physics , computer science , programming language , medicine
The results of heat flux measurements using a sensor based on anisotropic thermoelements with defects in the crystal structure during reflection of a shock wave are presented. Using numerical simulation, the influence of the defective layer thickness on the sensor electrical signal and the calculated heat flux is analysed. It is shown that the presence of even a thin defect layer makes it unsuitable for measuring pulsed heat fluxes with a characteristic time of ∼ 1 μs.