Influence of WC-Co substrate pretreatment on diamond film deposition by laser-assisted combustion synthesis
VEILLERE, Amélie
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
Department of Electrical Engineering
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
Department of Electrical Engineering
GUILLEMENT, Thomas
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
Department of Electrical Engineering
See more >
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
Department of Electrical Engineering
VEILLERE, Amélie
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
Department of Electrical Engineering
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
Department of Electrical Engineering
GUILLEMENT, Thomas
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
Department of Electrical Engineering
< Reduce
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
Department of Electrical Engineering
Language
en
Article de revue
This item was published in
ACS Applied Materials & Interfaces. 2011, vol. 3, n° 4, p. 1134-1139
Washington, D.C. : American Chemical Society
English Abstract
The quality of diamond films deposited on cemented tungsten carbide substrates (WC-Co) is limited by the presence of the cobalt binder. The cobalt in the WC-Co substrates enhances the formation of nondiamond carbon on the ...Read more >
The quality of diamond films deposited on cemented tungsten carbide substrates (WC-Co) is limited by the presence of the cobalt binder. The cobalt in the WC-Co substrates enhances the formation of nondiamond carbon on the substrate surface, resulting in a poor film adhesion and a low diamond quality. In this study, we investigated pretreatments of WC-Co substrates in three different approaches, namely, chemical etching, laser etching, and laser etching followed by acid treatment. The laser produces a periodic surface pattern, thus increasing the roughness and releasing the stress at the interfaces between the substrate and the grown diamond film. Effects of these pretreatments have been analyzed in terms of microstructure and cobalt content. Raman spectroscopy was conducted to characterize both the diamond quality and compressive residual stress in the films.Read less <
English Keywords
Diamond
Substrate pretreatment
Chemical and laser etchings
Cobalt diffusion
Residual stress
Raman spectroscopy
Origin
Hal imported