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

Abstract:

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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.

Info:

Periodical:

Materials Science Forum (Volumes 610-613)

Main Theme:

Edited by:

Zhong Wei Gu, Yafang Han, Fu Sheng Pan, Xitao Wang, Duan Weng and Shaoxiong Zhou

Pages:

1132-1136

DOI:

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

Citation:

X. Y. Li et al., "Study on the Preparation and Micro Structure of the Mg Containing Porous HA with Ultra-Fine Grain", Materials Science Forum, Vols. 610-613, pp. 1132-1136, 2009

Online since:

January 2009

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$35.00

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