Fabrication of Nanodiamond Coating on Steel

Coatings

Rafael Velázquez³  Victor F. Neto²  Kishore Uppireddi³  Brad R. Weiner¹ 

[1] Department of Chemistry, University of Puerto Rico, San Juan, PR 00931-3346, USA; E-Mail:;Department of Mechanical Engineering, Centre for Mechanical Technology & Automation, University of Aveiro, Campus Universitário de Santiago, Aveiro 3810-193, Portugal; E-Mail:;Department of Physics, University of Puerto Rico, San Juan, PR 00936-0377, USA; E-Mails:

关键词: diamond coating on steel;    CrN;    hot filament chemical vapor deposition;    nanocrystalline diamond;    microcrystalline diamond;    carbon nanotubes;   

DOI  :  10.3390/coatings3040243

来源: mdpi

【 摘 要 】

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).

【 授权许可】

CC BY   
© 2013 by the authors; licensee MDPI, Basel, Switzerland.