FIELD: protective coatings.
SUBSTANCE: invention relates to thermoelectric instrumentation and can be used for the manufacture of protective coatings in the production of thermoelements. Essence: the method includes mechanical processing, ion etching of the surface of a thermoelectric material (TEM) and plasmochemical application of a protective coating in the form of thin films of silicon dioxide or nitride. Mechanical treatment of the TEM surface is carried out to a roughness not exceeding the thickness of the formed thin film of the protective coating.
EFFECT: increase in the TEM operating temperature range due to the application of a thermostable thin-film protective coating on the TEM surface, suppressing the sublimation of TEM components, not reducing the temperature difference between the junctions of a thermoelement having high adhesive strength with the TEM surface.
1 cl, 3 dwg
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