Study on the Preparation and Micro Structure of the Mg Containing Porous HA with Ultra-Fine Grain

Xing Yi Li; Xiang Cai Meng; Guo Quan Liu; Shi Dan Yuan

doi:10.4028/www.scientific.net/MSF.610-613.1132

Paper Titles

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High-Cycle Fatigue Mechanisms of a NiTi Shape Memory Alloy under Different Mean Strains
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Influence of the Flux Ratio N₂/Ar on the Formation of Mo-N Modification Layers on Ti₆Al₄V by Plasma Reactive Sputtering
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Study on the Preparation and Micro Structure of the Mg Containing Porous HA with Ultra-Fine Grain
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Hydroxyapatite Deposition by Alternate Soaking Technique on Poly (Vinyl Alcohol)-Coated Poly (ε-Caprolactone) (PCL) Substrate
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Investigation of TiO₂ Nanotube Electrodes: Fabrication, Annealing and Electrochemical Properties
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Corrosion Behaviours of Mo Modified Ti₆Al₄V Alloy in Hank’s Solution
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Preparation of Porous Titanium by a Novel Foaming Process and MG63 Cell Behavior In Vitro
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Study on the Preparation and Micro Structure of the Mg Containing Porous HA with Ultra-Fine Grain

Abstract:

The Nano-HA powder were synthesized by chemical precipitation with Ca(H2PO4)2•H2O and Ca (OH)2 and porous HA was prepared by sintering with magnesium as pore-creator. Nano-HA powder and porous HA were characterized by wide angle X-ray diffraction, transmission electron microscopy(TEM), scanning electron microscopy (SEM), SEM in combination with energy dispersive X-ray spectroscopy (SEM-EDX), X-ray photoelectron spectroscopy. The experimental results show that HA powder synthesized by chemical precipitation is nanometer powder. Magnesium was ideal pore-creator for preparation of porous materials. The grain size of porous HA was sub-micron and MgO which existed in the grain boundary of HA as a second phase particles that played the roles of inhibiting the HA grain growth.