Title: Preparation and characterisation of nano-sized beta-tricalcium phosphate with a PS template method

Authors: Chunjie Xia, Xuliang Deng, Yuan-Hua Lin, Ce-Wen Nan

Addresses: School and Hospital of Stomatology Jiamusi University, Jiamusi 154002, PR China. ' Department of Special Dentistry, School and Hospital of Stomatology, Peking University, Beijing 100081, PR China. ' State Key Laboratory of New Ceramics and Fine Processing, Department of Materials Science and Engineering, Tsinghua University, Beijing 100084, PR China. ' State Key Laboratory of New Ceramics and Fine Processing, Department of Materials Science and Engineering, Tsinghua University, Beijing 100084, PR China

Abstract: Beta-tricalcium phosphate (β-TCP) powder has been prepared by a polystyrene (PS) template method. The phase composition and microstructure were investigated systematically. X-ray Diffraction (XRD) patterns reveal that these powders are composed of Ca-deficient apatite (Ca₉HPO₄ (PO₄)₅OH) and β-TCP phases at low calcined temperature. As the calcined temperature increases, only pure β-TCP phase can be observed. Transmission Electron Microscopy images indicate that two different morphologies (i.e., rod-like and spherical shape) of β-TCP particles coexist in the products.

Keywords: beta-tricalcium phosphate; calcium-deficient apatite; microstructure; nanotechnology; polystyrene template; phase composition; temperature.

DOI: 10.1504/IJMPT.2010.031424

International Journal of Materials and Product Technology, 2010 Vol.37 No.3/4, pp.257 - 262

Published online: 03 Feb 2010 *

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