Plasma Sprayed Alumina Coating on Ti6Al4V Alloy for Orthopaedic Implants: Microstructure and Phase Analysis

Abstract:

Alumina was coated on Ti6Al4V alloy by atmospheric plasma spraying. Surface and cross sectional analysis of the coating by SEM showed that diameter and thickness of splat was greatly influenced by arc current and stand-off distance. In turn, this variation in splat morphology had effect on evolution of α-Al₂O₃ and γ-Al₂O₃ phases as revealed by XRD. Higher proportion of required γ-Al₂O₃ phase was achieved at stand-off distance of 130 mm and arc current of 500A.

• Periodical: Key Engineering Materials (Volumes 510-511)
• Pages: 547-553
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.510-511.547
• Online since: May 2012
• Authors: Muhammad Khalid, Mohammad Mujahid, Aamer Nusair Khan, Rajdeep Singh Rawat, Iftichar Us Salam, Khalid Mehmood
• Keywords: Alumina Coating, Biomedical Application, Microstructure, Ti6Al4V

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