@Article{SilvaNetoConFraCorTra:2018:GrChMu,
author = "Silva Neto, Jos{\'e} Vieira da and Contin, Andr{\'e} and Fraga,
Mariana Amorim and Corat, Evaldo Jos{\'e} and Trava-Airoldi,
Vladimir Jesus",
affiliation = "{Instituto Nacional de Pesquisas Espaciais (INPE)} and
{Universidade Federal de Goi{\'a}s (UFG)} and {Universidade
Brasil} and {Instituto Nacional de Pesquisas Espaciais (INPE)} and
{Instituto Nacional de Pesquisas Espaciais (INPE)}",
title = "Growth and characterization of multilayered HFCVD diamond coatings
on WC-Co substrates",
journal = "Surface Innovations",
year = "2018",
volume = "6",
pages = "1--25",
note = "{Setores de Atividade: Pesquisa e desenvolvimento
cient{\'{\i}}fico.}",
keywords = "Diamante-CVD, Filmes Finos, WC-Co.",
abstract = "The diamond coating of tungsten carbide (WC)cobalt (Co) hard
metals has been the focus of various research activities mainly
due to growing interest in diamond-coated tools for industrial
machining of different materials. In this work, multilayered
diamond coatings have been grown on pretreated tungsten
carbidecobalt substrates by hot-filament chemical vapor
deposition. Two types of multilayer coatings have been prepared:
(a) three-layer (alternating nanocrystalline diamond and
microcrystalline diamond films) and (b) five-layer (alternating
ultrananocrystalline and microcrystalline diamond films). The
morphology, roughness, structure, thickness, adhesion of these
coatings have been investigated using atomic force microscopy,
field emission gun scanning electron microscopy, energy-dispersive
X-ray spectroscopy, Raman spectroscopy, nanoindentantion and
Rockwell C indentation tests at 600\ N load. Raman spectra
of the two types of samples exhibited sharp characteristic bands
of nanocrystalline diamond and a centered peak at
1340\ cm\−1. The displacement of this peak in
relation to the natural diamond peak (1332\ cm\−1)
can be attributed to graphitic inclusions in diamond grain
boundaries and the thermal coefficient mismatch of the multilayer
coatingsubstrate system. Roughness surface measurements showed
very smooth surfaces for both samples. Although the substrate has
a high binder content, the results show that well-adhered chemical
vapor deposition diamond multilayer coatings were produced.",
doi = "10.1680/jsuin.18.00020",
url = "http://dx.doi.org/10.1680/jsuin.18.00020",
issn = "2050-6252",
label = "lattes: 0560039556461253 4 VieiraConFraCorAir:2018:GrChMu",
language = "en",
urlaccessdate = "03 jun. 2024"
}