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ISSN Печать: 2150-3621
ISSN Онлайн: 2150-363X
Indexed in
IN-PLANE THERMAL DIFFUSIVITY OF ALUMINUM COATED STEEL SUBSTRATES
Краткое описание
The nanostructured thermal coating has been discovered to be effective in improving the signal-to-noise ratio of thermal measurement, but sometimes influences the thermal properties of the workpiece surface. In this work, the thermal properties of aluminum-based coatings were investigated. Aluminum thin films, ranging from 3 nm to 0.5 µm, deposited on a 304 stainless steel substrate were prepared by vacuum evaporation and a peak diffusing measurement method was applied to characterize the thermal diffusivity of the nanostructured surface. The work presented hereinafter consists of characterizing the effects of aluminum coating on apparent thermal diffusivity. A practical interval of thickness within which the aluminum coating will not obviously influence the substrate thermal diffusivity is given.