Mechanical Properties of Hydroxyapatite Composites Reinforced with Hydroxyapatite Whiskers
نویسندگان
چکیده
منابع مشابه
Hydroxyapatite whiskers provide improved mechanical properties in reinforced polymer composites.
Synthetic hydroxyapatite (HA) whiskers have been utilized as a new, biocompatible reinforcement for orthopedic biomaterials. High-density polyethylene (HDPE) was reinforced with either the synthesized HA whiskers or a commercially available spherical HA powder using a novel powder processing technique that facilitated uniform dispersion of the reinforcements in the matrix prior to compression m...
متن کاملHydroxyapatite reinforced collagen scaffolds with improved architecture and mechanical properties.
Hydroxyapatite (HA) reinforced collagen scaffolds have shown promise for synthetic bone graft substitutes and tissue engineering scaffolds. Freeze-dried HA-collagen scaffolds are readily fabricated and have exhibited osteogenicity in vivo, but are limited by an inherent scaffold architecture that results in a relatively small pore size and weak mechanical properties. In order to overcome these ...
متن کاملSurface modifications of glass-reinforced hydroxyapatite composites.
Surface modifications of glass-reinforced hydroxyapatite composites immersed in a simulated physiological solution were studied using X-ray photoelectron spectroscopy, scanning electron microscopy and energy dispersive X-ray spectroscopy. In the first stages of the apatite formation process, calcium and silicon ions were leached out from the surface of the composites. After 12 days of immersion...
متن کاملModeling the Anisotropic Mechanical Properties of Hydroxyapatite Whisker Reinforced Biocomposites
The ideal bone substitute biomaterial should have mechanical properties similar to that of human bone tissue. Hydroxyapatite (HA) alone suffers from low fracture toughness, and most polymers alone lack sufficient stiffness and strength, limiting applications in load-bearing implants. Synthetic HA whisker reinforced polymer biocomposites provide a means to overcome these deficiencies (Roeder, et...
متن کاملMechanical properties of hydroxyapatite whisker reinforced polyetherketoneketone composite scaffolds.
The apparent mechanical properties of hydroxyapatite (HA) whisker reinforced polyetherketoneketone (PEKK) scaffolds were evaluated in unconfined, uniaxial compression to investigate the effects of the porosity (75%, 82.5% and 90%), HA content (0, 20 and 40 vol%) and mold temperature (350, 365 and 375 ( composite function)C). Increased porosity resulted in a non-linear decrease in the elastic mo...
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ژورنال
عنوان ژورنال: Key Engineering Materials
سال: 2004
ISSN: 1662-9795
DOI: 10.4028/www.scientific.net/kem.264-268.1985