Open AccessRegularities of structure formation and physical properties of multilayered composites based on W, Ta, Нf, Ti, Mo, Сr, Al, and С
Author(s) -
В. И. Перекрестов,
Yu. O. Kosminska,
Yu. V. Gannych,
G. S. Kornyushchenko
Publication year - 2020
Publication title -
fìzika ì hìmìâ tverdogo tìla
Language(s) - English
Resource type - Journals
eISSN - 2309-8589
pISSN - 1729-4428
DOI - 10.15330/pcss.21.2.347-354
Subject(s) - materials science , titanium carbide , graphite , composite number , carbide , indentation hardness , titanium , composite material , sputtering , metal , plasma , transition metal , metallurgy , microstructure , nanotechnology , thin film , chemistry , physics , biochemistry , quantum mechanics , catalysis
New fabrication technique of multilayered composite coatings on inner surface of pipes is developed which is based on ion–plasma sputtering of rod–like target composed of various metals and graphite. It is established that gradient change of elemental composition in the direction Сr→W→Mo→Ta→Hf→Ti→C→Ti/Al→C is accompanied by transition from metal mixture carbide to titanium carbide with the grain sizes of ~ 8–15 nm. It is found that increase in microhardness up to ~ 26 GPa is caused by additional surface heating by thermal radiation from the ion–heated rod and by elemental composition of the composite layers.