Synthesis of Ultra-fine Hydroxyapatite Powders by Hydrothermal Reaction

수열반응에 의한 Hydroxyapatite 초미분말의 제조

  • 민경소 (한양대학교 무기재료공학과) ;
  • 최재웅 (한양대학교 무기재료공학과) ;
  • 최상흘 (한양대학교 무기재료공학과)
  • Published : 1992.12.01

Abstract

Ultra-fine hydroxyapatite powders were synthesized by the hydrothermal reaction of Ca(OH)2 suspension or Ca(NO3)2$.$4H2O solution with (NH4)2HPO4 solution, and the powders were characterized for each synthetic condition. Crystalline hydroxyapatite powders have average grain size of less than 50 nm. By increasing the reaction pressure, the crystallinity was improved, and the crystals were preferentially growing along c-axis. When Ca(NO3)2$.$4H2O of high solubility was used, hydroxyapatite of single phase was produced. However when Ca(OH)2 of low solubility was used more than 0.334 mol/ι, unreacted Ca(OH)2 remained. Diffraction spot patterns of transmission electron microscope show that powders synthesized by the hydrothermal reaction were composed of single crystals of hexagonal phase.

Keywords

References

  1. J. Mat. Sci. v.14 Synthesis and Fabrication of β-tricalcium phosphate(Whitlockite) Ceramics for Potential Prosthetic Applications M. Jarcho;R. L. Salsbury;M. B. Thomas;R. H. Doremus
  2. J. Cer. Soc. Japan v.95 no.8 Bonding between bioactive Glasses, Glasses Ceramics or Ceramics in a Simulated Body Fluid T. Kokubo;T. Hayashi;S. Sakka;T. Kitsugi;T. Yamamuro
  3. Gysum & Lime no.221 Effect of additives on the Hydrolysis of Dicalcium Phosphate Dihydrate S.R. Kim;S.J. Park
  4. 요업학회지 v.27 no.3 Hydroxyapatite Biceramics의 생체 친화성에 관한 연구(Ⅰ) 인공체액중에서의 Hydroxyapatite Biceramics간의 결합 고형열;김양수;송종택;최상흘
  5. 요업학회지 v.27 no.6 Hydroxyapatite Biceramics의 생체 친화성에 관한 연구(Ⅱ) 인공체액중에서의 거동 및 생체친화성 김양수;고형열;송종택;최상흘
  6. 요업학회지 v.28 no.4 Hydroxyapatite Zirconia계 복합 Biceramics에 관한 연구 이종필;최현국;송종택;최상흘
  7. Gysum & Lime no.211 Hydroxy Apatite in Orthopedic surgery S. Niwa
  8. J. Biomedicul Materials Research v.14 Tissue Response to Dense Apatite Implants in Rat H. W. Denissen;K. de Groot;P. ch Makkes;A. van den Hooff;P. J. Klopper
  9. Proceeding of the First Korea-Japan Seminer on New Ceramics Bioceramics-Apatite Biocermics H. Monma
  10. Gysum & Lime no.210 Materials Chemistry of Apattie T. Kanazawa;T. Umagaki;H. Monma;K. Yamashita
  11. J. Chem. Soc. Japan no.9 Hydrothermal Synthesis of Ultrafine Hydroxyapatite Single Crystals K. Ioku;M. Yoshimura;S. Somiya
  12. Ceramics Japan v.25 no.1 Nanocrystalline Materials and Superplastic Processing F. Wakai
  13. 요업학회지 v.27 no.8 금속 알콕사이드법에 의한 구형의 단분산 ZrO₂미립자의 제조 김병익;민경소;최상흘
  14. 요업학회지 v.29 no.2 금속 알콕사이드로부터 구형의 단분산 Y-dopde ZrO₂ 미립자 제조 김병익;이중윤;최상흘
  15. 산업과학 논문집 v.34 단분산 Al₂O₃분말합성 및 ZTA 제조 하창수;최상흘
  16. 요업학회지 v.29 no.1 Ca(OH)₂현탁액과 각종 인산 수용액으로부터 인산칼슘 초미분말의 제조 민경소;최상흘
  17. Gypsum & Lime no.165 Region of Formation of Hydroxyapatite S. Matsuno;T. Tsukakoshi
  18. 공업화학분석 대한화학회(편)
  19. 內田老鶴圃 X線 回折分析 加藤誠軌
  20. 요업재료의 과학과 기술 v.7 Ceramics and Transission Electron Microscopy D. S. Cheong