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Fabrication of Nanodiamond Coating on Steel
Department of Physics, University of Puerto Rico, San Juan, PR 00936-0377, USA
Department of Mechanical Engineering, Centre for Mechanical Technology & Automation, University of Aveiro, Campus Universitário de Santiago, Aveiro 3810-193, Portugal
Department of Chemistry, University of Puerto Rico, San Juan, PR 00931-3346, USA
* Author to whom correspondence should be addressed.
Received: 8 October 2013; in revised form: 18 November 2013 / Accepted: 20 November 2013 / Published: 2 December 2013
Abstract: The hardness, heat conductivity and low friction coefficient of microcrystalline diamond make it a suitable candidate for tribological applications. However, its roughness and high deposition temperature pose significant obstacles to these applications. We have successfully grown nanocrystalline diamond on steel at 400 °C by hot-filament chemical vapor deposition by employing a CrN interfacial layer. Nanocrystalline diamond combines hardness and surface smoothness required in tribological applications. Microcrystalline diamond and carbon nanotubes can also be grown by controlling the deposition parameters. The fabricated films were characterized with Raman spectroscopy, X-ray diffraction (XRD), Transmission electron microscopy (TEM), and scanning electron microscopy (SEM).
Keywords: diamond coating on steel; CrN; hot filament chemical vapor deposition; nanocrystalline diamond; microcrystalline diamond; carbon nanotubes
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Cite This Article
MDPI and ACS Style
Velázquez, R.; Neto, V.F.; Uppireddi, K.; Weiner, B.R.; Morell, G. Fabrication of Nanodiamond Coating on Steel. Coatings 2013, 3, 243-252.
Velázquez R, Neto VF, Uppireddi K, Weiner BR, Morell G. Fabrication of Nanodiamond Coating on Steel. Coatings. 2013; 3(4):243-252.
Velázquez, Rafael; Neto, Victor F.; Uppireddi, Kishore; Weiner, Brad R.; Morell, Gerardo. 2013. "Fabrication of Nanodiamond Coating on Steel." Coatings 3, no. 4: 243-252.