Paper Title:
Gelcasting of Mechanochemically Synthesized Hydroxyapatite
  Abstract

Hydroxyapatite powders were prepared via mechanochemical synthesis method. The starting reagents for HAP powders were vibration ball milled for 2 h and then calcined at 800°C for 1 h. X-ray diffraction patterns and IR spectrum shown that pure crystalline apatite powder (HAP) was obtained. The as-synthesized powders were gelcasted and then sintered at 1200°C for 2 h. It was observed from SEM micrographs that the prepared green body has uniform microstructure. The bending strength of the dried green body was as high as 18 MPa that is enough to be machined into required form before sintering. The sintered ceramics has a density of 2.5 g/cm3 and a flexural strength of 72 MPa with a homogenous microstructure.

  Info
Periodical
Key Engineering Materials (Volumes 280-283)
Edited by
Wei Pan, Jianghong Gong, Chang-Chun Ge and Jing-Feng Li
Pages
1555-1558
DOI
10.4028/www.scientific.net/KEM.280-283.1555
Citation
Y. Jia, Y. Hotta, K. Sato, K. Watari, Y. Kanno, "Gelcasting of Mechanochemically Synthesized Hydroxyapatite", Key Engineering Materials, Vols. 280-283, pp. 1555-1558, 2005
Online since
February 2007
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Price
$32.00
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