Up to date various kinds of implant materials have been developed. The initial version of implants was expected to provide enough mechanical support. However, the newer generation of implants is expected to provide higher biological compatibility, shorter healing periods, and changeable corrosion performance, with superior mechanical properties. To meet the medical market’s need biodegradable implant materials have been introduced as functional smart materials. The newer generation of biomaterial degrades or corrodes at different rates after finishing their assistance in the tissue. This material behaviour eliminates the need for second surgery to remove the implant.
From a general viewpoint, the major limitations of biodegradable implant materials are associated with weak osseointegration performance, mechanical strength and inadequate degradation rates. In an attempt to tackle challenges on the biomaterial side, researchers have focused on improving newer types of materials. Magnesium-, zinc-, and iron-based alloy are common biodegradable implant materials that gradually degrade at different rates. Bioceramic materials are used as additives due to their high biological compatibility. For mechanical strength improvements, post processes are being applied such as extrusion.
In this experimental study, HA/β-TCP ceramic additives were used to obtain Zn- based composite to investigate its effect on final material performance. Different amounts of ceramics were added to pure Zn. Ball milling process applied to obtain well-mixed microstructures. High-pressure Torsion (HPT) rotation was applied to consolidate at room temperatures. Afterwards, microstructure and mechanical properties were investigated to understand consolidation behaviour.
Anahtar Kelimeler: Bioceramic, Biodegradable, Ball milling, High-pressure torsion
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