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Phase Interaction in Hydroxylapatite/LaPO4 Composite

[+] Author Affiliations
Celaletdin Ergun, Filiz Çınar Şahin

Istanbul Technical University, Istanbul, Turkey

John W. Halloran, Chang-Jun Bae

University of Michigan, Ann Arbor, MI

Paper No. ESDA2006-95205, pp. 373-376; 4 pages
  • ASME 8th Biennial Conference on Engineering Systems Design and Analysis
  • Volume 1: Advanced Energy Systems, Advanced Materials, Aerospace, Automation and Robotics, Noise Control and Acoustics, and Systems Engineering
  • Torino, Italy, July 4–7, 2006
  • ISBN: 0-7918-4248-7 | eISBN: 0-7918-3779-3
  • Copyright © 2006 by ASME


Hydroxylapatite composites with lanthanum phosphate were prepared with pressureless air sintering for 2 hours at different temperatures between 500°C and 1300°C. The interaction between the phases was monitored with XRD analysis. At sintering temperatures higher than 700°C, hydroxylapatite and lanthanum phosphate phase reacted and formed Ca8 La2 (PO4 )6 O2 as byproduct. In the mean time, hydroxylapatite decomposed and formed tricalcium phosphate.

Copyright © 2006 by ASME



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