journal article·2016-04

Apatite layer growth on glassy Zr 48 Cu 36 Al 8 Ag 8 sputtered titanium for potential biomedical applications

S. Thanka Rajan, M. Karthika, Avi Bendavid, B. Subramanian

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Abstract

Abstract The bioactivity of magnetron sputtered thin film metallic glasses (TFMGs) of Zr 48 Cu 36 Al 8 Ag 8 (at.%) on titanium substrates was tested for bio implant applications. The structural and elemental compositions of TFMGs were analyzed by XRD, XPS and EDAX. X-ray diffraction analysis displayed a broad hump around the incident angle of 30–50°, suggesting that the coatings possess a glassy structure. An in situ crystal growth of hydroxyapatite was observed by soaking the sputtered specimen in simulated body fluid (SBF). The nucleation and growth of a calcium phosphate (Ca–P) bone-like hydroxyapatite on Zr 48 Cu 36 Al 8 Ag 8 (at.%) TFMG from SBF was investigated by using XRD, AFM and SEM. The presence of calcium and phosphorus elements was confirmed by EDAX and XPS. In vitro electrochemical corrosion studies indicated that the Zr-based TFMG coating sustain in the stimulated body-fluid (SBF), exhibiting superior corrosion resistance with a lower corrosion penetration rate and electrochemical stability than the bare crystalline titanium substrate.
Source: openaire · Quality: candidate unverified · Source record ↗

Research context

OpenAlex topics: Metallic Glasses and Amorphous Alloys · Bone Tissue Engineering Materials · High Entropy Alloys Studies

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

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