Paper Title:
Structure of Carbonated Hydroxyapatite Based on Rietveld Method
  Abstract

The crystalline structures of B-type carbonated hydroxyapatite (CHA) powders sintered at 700, 900 and 1100°C, respectively, were studied by Rietveld analysis of powder X-ray diffraction (XRD) data. A series of structure parameters, including lattice parameters (a and c), bond length and the distortion index of PO4 tetrahedron (Dind) were calculated by Rietveld method to characterize the fine structure of CHA. The broadening effect of XRD reflections was separated to calculate the micro-strain and crystalline size. The results showed that CHA become more stable with the increase of sintering temperature, but the CO3 2- is almost lost at temperature of 1100°C. The quantitative results about crystal structure of CHA based on crystalline structure simulated by Rietveld method are obtained.

  Info
Periodical
Key Engineering Materials (Volumes 368-372)
Edited by
Wei Pan and Jianghong Gong
Pages
1187-1189
DOI
10.4028/www.scientific.net/KEM.368-372.1187
Citation
X. Ran, J. G. Ran, L. Gou, J. Y. Chen, J. M. Luo, "Structure of Carbonated Hydroxyapatite Based on Rietveld Method", Key Engineering Materials, Vols. 368-372, pp. 1187-1189, 2008
Online since
February 2008
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Gian Carlo Celotti, Elena Landi, Monica Sandri, Anna Tampieri
2071
Authors: Akihiko Yoshida, Toshiki Miyazaki, Eiichi Ishida, Masahiro Ashizuka
Abstract:Organic-inorganic composites composed of organic polymer and carbonate hydroxyapatite (CHAp) would be useful bone substitute materials...
855
  | Authors: C.A.O. Ramirez, Andrea Machado Costa, J. Bettini, Antonio J. Ramirez, Marcelo Henrique Prado da Silva, Antonella M. Rossi
Abstract:B-type carbonate apatite samples were synthesized by wet chemical method and characterized by X-ray Fluorescence Spectrometry, X-ray...
611
Authors: Qing Xia Zhu, Jian Qing Wu, Qing Feng, He Ping Wang
Abstract:Carbonated hydroxyapatite (CHA) and hydroxyapatite (HA) were prepared by the wet chemical method. The contact angle was measured to calculate...
1203
Authors: Duong D. Nguyen, Liam Devlin, Pramod Koshy, Charles C. Sorrell
Abstract:The present work reviews current practices in quantitative XRD analysis of anhydrous and hydrated Portland cement. While Part 1 of this...
498