Open AccessDetermination of the absolute hardness of electrolytically produced copper coatings by application of the Chicot-Lesage composite hardness model
Author(s) -
Ivana Mladenović,
Jelena Lamovec,
Dana Vasiljević Radović,
Vesna Radojević,
Nebojša D. Nikolić
Publication year - 2022
Publication title -
journal of the serbian chemical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.227
H-Index - 45
eISSN - 1820-7421
pISSN - 0352-5139
DOI - 10.2298/jsc211014105m
Subject(s) - indentation hardness , materials science , coating , copper , vickers hardness test , composite number , composite material , indentation , substrate (aquarium) , hardness , metallurgy , microstructure , oceanography , geology
In this study, a novel procedure based on application of the Chicot?Lesage (C?L) composite hardness model was proposed for determination of an absolute hardness of electrolytically produced copper coatings. The Cu coatings were electrodeposited on the Si(111) substrate by the pulsating current (PC) regime with a variation of the following parameters: the pause duration, the current density amplitude and the coating thickness. The topography of produced coatings was characterized by atomic force microscope (AFM), while a hardness of the coatings was examined by Vickers microindentation test. Applying the C?L model, the critical relative indentation depth (RID)c of 0.14 was determined, which is independent of all examined parameters of the PC regime. This RID value separated the area in which the composite hardness of the Cu coating corresponded to its absolute hardness (RID < 0.14) from the area in which application of the C?L model was necessary for a determination of the absolute coating hardness (RID ? 0.14). The obtained value was in a good agreement with the value already published in the literature.