@Article{FukumasuBeRaTrSoMa:2018:LoTrAm,
author = "Fukumasu, N. K. and Bernardes, C. F. and Ramirez Ramos, Marco
Antonio and Trava-Airoldi, Vladimir Jesus and Souza, R. M. and
Machado, I. F.",
affiliation = "{Universidade de S{\~a}o Paulo (USP)} and {Universidade de
S{\~a}o Paulo (USP)} and {Instituto Nacional de Pesquisas
Espaciais (INPE)} and {Instituto Nacional de Pesquisas Espaciais
(INPE)} and {Universidade de S{\~a}o Paulo (USP)} and
{Universidade de S{\~a}o Paulo (USP)}",
title = "Local transformation of amorphous hydrogenated carbon coating
induced by high contact pressure",
journal = "Tribology International",
year = "2018",
volume = "124",
pages = "200--208",
month = "Aug.",
abstract = "The development of coatings presenting adaptive characteristics
based on mechanical loads would promote improved local
characteristics. In this work, the surface modification of an
a-C:H coating was analyzed based on the contact pressure using two
tribological tests: lubricated reciprocating ball-on-plane and dry
micro-scratch tests. Local transformation were evaluated based on
Raman spectroscopy and indentation hardness. Results indicated
regions presenting a red-shift of the G band and higher
indentation hardness. High compressive stress field developed
under the contacting region (numerical simulations) coupled to the
red-shift of the G band and the increase on indentation hardness
inside the tested regions are compatible with the nucleation of
sp(3) carbon bond sites derived from sp(2) bonds, indicating a
possible modification of the coating.",
doi = "10.1016/j.triboint.2018.04.006",
url = "http://dx.doi.org/10.1016/j.triboint.2018.04.006",
issn = "0301-679X",
language = "en",
targetfile = "fukumasu_local.pdf",
urlaccessdate = "19 abr. 2024"
}