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Deposition of Diamond/ Tin Composite Film on Tool Steel Substrate

Published online by Cambridge University Press:  25 February 2011

X. Chen  and
J. Narayan
X. Chen
Affiliation:
Department of Materials & Engineering, North Carolina State University, Raleigh, NC 27695-7916
J. Narayan
Affiliation:
Department of Materials & Engineering, North Carolina State University, Raleigh, NC 27695-7916
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Abstract

TiN/Diamond/TiN composite film has been deposited on tool steel substrate by CVD and laser ablation technique. A TiN film of about 0.5µm thick was first deposited as a buffer layer by laser ablation and then diamond was deposited with proper number density by CVD. After this the diamond layer was covered by a second layer of TiN. It was found that the TiN buffer layer was stable during CVD process of diamond and can chemically isolate the depositing surface from steel substrate. This prevents the reaction between the diamond and the substrate and makes it possible to deposit high quality diamond films on steel. The second TiN layer embeds the diamond particles to form a TiN/diamond composite film and therefore greatly enhances adhesion of the deposited diamond. SEM, Raman. adhesion and hardness measurements show that an extremely hard. adherent and thermalshock-resistant diamond/TiN composite film can be deposited on steel.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 286: Symposium J – Nanophase and Nanocomposite Materials , 1992 , 391
Copyright
Copyright © Materials Research Society 1993

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References

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