Analysis of the surface hardness of niobium carbide coatings deposited on commercially pure titanium and Ti-6Al-7Nb alloy implant materials using the glow discharge plasma technique

  • Haitham T. Al Qaysi 1, Thekra I. Hamad 2, Thair L. Al Zubaidy 3 2 Department of Prosthodontics, University of Baghdad / College of dentistry, Baghdad 1417, IRAQ. 3 Department of Prosthetic Dental Techniques, AlEsraa University/ College of Health and Medical Techniques, Baghdad 4001, IRAQ.
Keywords: Niobium carbide; Thin films; Plasma glow discharge; Titanium; Surface hardness.


 To enhance the properties of titanium and its alloys for implant applications, NbC thin films were deposited on commercially pure titanium and Ti-6Al-7Nb specimens using a low-temperature plasma glow discharge technique with argon gas and C2H2 as a carbon source. Vicker's hardness tests were conducted, revealing significantly increased hardness in the coated samples, a finding supported by statistical analysis. This increased surface hardness will potentially improve the wear resistance and load-bearing capabilities, which are essential factors for dental and orthopedic implants. The study aligns with previous research on NbC's properties, positioning it as a promising material for dental implants. Importantly, the study underscores the reliability of the coating technique for implant surface modification.


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