Abstract
The possibility of using periodic pulsed laser radiation for spectral analysis of the thermal properties of multilayer metallic materials is studied. Pulse and frequency characteristics of samples are found. An expression for the transfer constant of a thermal signal in multilayer materials is obtained. A parametric model is used to determine the thermal conductivity of the interface in a three-layer Mo(1 μm)-W(48 μm)-Mo(1 μm) sample from the amplitude-frequency characteristic measured before and after irradiation by 9-MeV electrons.
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