Journal of the Korean Ceramic Society (한국세라믹학회지)

The Korean Ceramic Society (한국세라믹학회)
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The Thermal Changes of Precipitated Hydroxyapatite

습식 합성 Hydroxyapatite의 가열 분해성

  • 김창은 (연세대학교 요업공학과) ;
  • 박훈 (연세대학교 요업공학과) ;
  • 김배연 (인천대학교 재료공학과) ;
  • 이동윤 (연세대학교 요업공학과)
  • Published : 1990.07.01
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Abstract

The hydroxyapatite powder was prepared by the precipitation method. The obtained powder was heat-treated and its products were investigated in order to characterize its decomposition process. The powder was Ca-deficient hydroxyapatite with no relation to the Ca/P mole ratio in the initial solution. The obtained hydroxyapatite was thermally decomposed into tricalcium phosphate [Ca3(PO4)2, TCP] after heat-treatment above 80$0^{\circ}C$ and the extent of the decomposition was dependent on the nonstoichiometry of obtained hydroxyapatite, and the resultant hydroxyapatite and tricalcium phosphate maintained stable forms up to 120$0^{\circ}C$. The hydroxyapatite powder had the better stability with the samller the nonstoichinometry of hydroxyapatite. And the quantities of tricalcium phosphate obtained after decomposition were decreased, and also the corresponding decomposition temperatures were increased with decreasing extent of nonstoichiometry in precipitated hydroxyapatite.

Keywords

References

  1. J Dent. Res. v.50 New Calcium Phosphate Ceramic Material for bone and Tooth Implants E.A. Monroe;W. Votya;D.B. Bass
  2. J. Biomed. Mater. Res. v.15 In Vivo Surface Activity of a Hydroxyapatite Alveolar Bone Substitute P. Decheyne;K. De Groot
  3. J. Biomed. Mater. Symp. v.2 Bonding Mechanism at the Interface of Ceramic Prosthetic Materials L.L. Hench;R.K. Splinter
  4. Ceramic Japan v.10 no.7 Application of Apatite to Biomaterials H. Aoki;K. Kato
  5. Inorg Chem. v.13 no.1 Infrared Studies of Apatite B.O. Fowler
  6. Yogyo-Kyokai-Shi v.86 no.2 Wet-Process Formation of Nonstoichiometric Hydroxyapatite from Tricalcium Phosphate H. Monma;T. Kanazawa
  7. Nature v.247 Hydroxyapatite Formed from Coral Skeletal Carbonate by Hydrothermal Exchange D.H. Roy;S.K. Linnehan
  8. J. Dent. Res. v.57 no.5;6 The Growth of Calcium Phosphates on Hydroxyapatite Crystals. The Effect of Fluoride and Phosphate P. Barone;G.H. Nancollas
  9. J. Appl Chem. Biotechnol. v.23 no.7 The Large Scale Preparation of Chromatographic Grade Hydroxyapatite and Its Application in Protein Separation Procedures A. Atkinson;P.A. Bradford;I.P. Selmes
  10. Gypsum & Lime v.208 Comparative Study on Compaction and Sintering Properties of Hydroxyapatite Powders H. Monma;T. Kamiya;M. Tsutsumi;Y.T. Hasigawa
  11. Calcif. Tissue Res. v.33 Formation and Structure of Ca-Deficient Hydroxyapatite N.C. Blumenthal;F. Betts;A.S. Posner
  12. J. Phys. Chem. v.75 no.20 The Nature of Deficiency in Nonstoichiometry Hydroxyapatites S.J. Joris;C.H. Amberg
  13. J. Solid State Chem. v.56 The Thermal Decompostition of Mg-Containing Catbonate Apatites I. Mayer;J.D.B. Featherstone;R. Nagler;M. Noejovich;D. Dentsch;I. Gedalia
  14. Gypsum & Lime v.153 The Dissolution Rates of Precipitated Hydroxyapatites in Acid Solvents T. Kanazawa;T. Umegaki;Y. Tokunaga;Y. Kimura
  15. J. Mater. Sci. v.11 no.11 Hydroxyapatite Synthesis and Characterization in Dense Polycrystalline Form M. Jarcho;C.H. Bolen;M.B. Thomas;J. Bobick;J.F. Kay;R.H. Doremus
  16. Yogyo-Kyokai-Shi v.95 no.4 Bending Strength of Hydroxyapatite Ceramics Containing α-Tricalcium Phosphate M. Toriyama;S. Kawamura;S. Shiba
  17. 무기정량분석화학의 이론과 응용 이길상
  18. Nature v.208 Intermediate states in the Preparation of Hydroxyapatite E.D. Eanes;I.H. Gillessen;A.S. Posner
  19. Element of X-ray Diffraction(2nd Ed.) B.D. Cullity
  20. J. Am. Ceram. Soc. v.54 no.11 Vibrational Spectra of Hydrothermally Prepared Hydroxyapatites K.C. Blakeslee;R.A. Condrate
  21. Calcif. Tissue Res. v.34 ESR and IR Studies of Carbonate-Containing Hydroxyapatite Y. Dio;Y. Moriwaki;T. Aoba
  22. J. Mater. Sci. v.22 Preparation of Hydroxyapatite by the Hydrolysis of Brushite H. Monma;T. Kamiya
  23. Yogyo-Kyokai-Shi. v.92 no.11 Thermal Change of Amorphous Calcium Phosphate-Effect of Preparative Conditions T. Umegaki;S. Shiba;T. Kanazawa
  24. Gypsum & Lime v.165 Thermal Behavior of "H₂O" in Nonstoichiometric Hydroxy and Fluor-Apatites H. Monma;J. Tanaka;S. Ueno
  25. J. Am. Ceram. Soc. v.62 no.9;10 Preparation and Thermal Properties of Dense Polycrystalline Oxyhydroxyapatite T. Kijima;M. Tsutsumi