Paper Title:
Preparation of Bimodal Porous Biphasic Calcium Phosphate Ceramics and Their Dissolution Behavior in Simulated Body Fluid
  Abstract

Biphasic calcium phosphate (BCP) ceramics, a mixture of hydroxyapatite (HAp) and beta-tricalcium phosphate (β-TCP), of varying HAp/β-TCP ratios were prepared from fine powders. Porous BCP ceramic materials with HAp/β-TCP weight rations of 20/80, 40/60, and 80/20 were prepared. In this study, the bioactivity is reduced at a bigger HAp content rate, which is likely related to the high driving pore for the formation of a new phase, and the reaction rate was proportional to the β-TCP. The porous BCP ceramics having a bigger porosity rate can easily under up dissolution. The powder having a bigger β-TCP content rate can easily generate a new phase. The dissolution results confirmed that the biodegradation of calcium phosphate ceramics could be controlled by simply adjusting the amount of HAp or β-TCP in the ceramics and porosity rate.

  Info
Periodical
Advanced Materials Research (Volumes 11-12)
Main Theme
Edited by
Masayuki Nogami, Riguang Jin, Toshihiro Kasuga and Wantai Yang
Pages
227-230
DOI
10.4028/www.scientific.net/AMR.11-12.227
Citation
Y. Zhang, T. Kameyama, Y. Yokogawa, "Preparation of Bimodal Porous Biphasic Calcium Phosphate Ceramics and Their Dissolution Behavior in Simulated Body Fluid", Advanced Materials Research, Vols. 11-12, pp. 227-230, 2006
Online since
February 2006
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Price
$32.00
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