Improvement of Tribological Behavior of Biomedical Nanostructured Titanium by Magnetron Sputtered SiC Films

Ti Feng Zhang; Xiao Jing Xu; Zhi Yong Ling; Wei Pang; Su Feng Wu; Xin Lan Sheng; Min Liu

doi:10.4028/www.scientific.net/AMR.189-193.1040

Paper Titles

Properties and Synthesis of α-Fe₂O₃/SiO₂ Composite Color
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Thermal-Field Experimental Study of a Thin Circular Carbon-Fiber Tube in Stratosphere Environment
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Effects of Thermal Exposure on Mechanical Properties of Al-4.87Cu-1.2Mg-1.0Ag Alloy
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HRTEM Investigation of Precipitates in Al-Zn-In-Mg-Ti-Ce Anode Alloy
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Improvement of Tribological Behavior of Biomedical Nanostructured Titanium by Magnetron Sputtered SiC Films
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Study and Application of Cemented Carbide Coating Technology
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Synthesis, Characterization and Antimicrobial Activity of a New Preservative, 6-O-Chitosan Ester of P-Hydroxybenzoic Acid
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Study on the Complex Strengthening Processes of 5Cr2NiMoVSi Steel Large Hot Forging Dies
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Numerical Research for the Film Surface Wave with the Different Flow Case
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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 189-193Improvement of Tribological Behavior of Biomedical...

Improvement of Tribological Behavior of Biomedical Nanostructured Titanium by Magnetron Sputtered SiC Films

Abstract:

The nano-indentation and friction/wear properties of a magnetron sputtered SiC (silicon carbon) films on nanostructured titanium (produced by severe plastic deformation) substrate were investigated. The results show that the films exhibited low nano-hardness (10.6 GPa), low Young's modulus (83.3 GPa) and high hardness-to-modulus ratio (0.128). As sliding against Si₃N₄ (silicon nitride) balls (2 mm in radius) under Kokubo simulation body fluid (SBF) at room temperature, the films displayed superior friction/wear properties at the considerably high normal load of 1000g, with the friction coefficient of about 0.18, the special wear rate on the order of 10⁻⁶ mm³ N^-1m^-1 without film cracking and interface delaminating. The impressive film cracking and interface delaminating resistance is in accordance with the low hardness (high ductility) of the films and the small film-substrate modulus difference that was caused by the low modulus of the films.