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합성 수산화아파타이트의 미세구조 발달
Microstructural Development in Synthetic Hydroxyapatite

Kim, Jong-Hee   (School of Materials Science and Engineering, Pusan National UniversityUU0000613  ); Park, Young-Min   (School of Materials Science and Engineering, Pusan National Universit  ); Yang, Tae-Young   (School of Materials Science and Engineering, Pusan National Universit  ); Yoon, Seog-Young   (School of Materials Science and Engineering, Pusan National Universit  ); Park, Hong-Chae   (School of Materials Science and Engineering, Pusan National UniversityUU0000613  );
  • 초록

    양론조성에 근접하는 (Ca/P=1.62-1.67, molar ratio) 휘스커 및 짧은 막대형상의 수산화아파타이트 (Ca $_{10}$ (PO $_4$ ) $_{6}$ (OH) $_2$ 를 $\alpha$ -Ca $_3$ (PO $_4$ ) $_2$ ( $\alpha$ -TCP) 수용액 (pH 11)의 가수분해와 수열반응으로 각각 합성하였다. 생성된 HAp의 입자형상은 합성방법에, 미세구조의 발달은 반응조건에 주로 의존하였다 가수분해의 경우 반응시간의 경과와 더불어 휘스커 입자들의 상호 교차와 장축방향에서의 응집이 일어났다 반면에, 수열처리에 있어서는 반응과정 중 임계크기(길이 0.75 $mu extrm{m}$ , 지름 0.3 $\mu\textrm{m}$ ) 이상으로의 입성장은 일어나지 않았으며 과다한 반응시간(20 $0^{\circ}C$ , $\geq$ 3시간)은 입자들의 심한 응집을 유발하였다.


    Whisker and short rod shaped hydroxyapatite (Ca $_{10}$ (PO $_4$ ) $_{6}$ (OH) $_2$ with stoichiometric composition (Ca/P=1.62 -1.67, molar ratio) has been synthesized by hydrolysis and hydrothermal reaction of aqueous $\alpha$ -Ca $_3$ (PO $_4$ ) $_2$ ( $\alpha$ -TCP) solution (pH 11), respectively. The shape of resultant HAp was mainly dependent on synthetic route and the microstructural development was on processing condition. In hydrolysis processing, the degree of intersection of whiskerlike particles and agglomeration in the apsis line increased with increasing reaction time. In hydrothermal synthesis, the reaction product obtained under excessive reaction time ( $\geq$ 3 h at 20 $0^{\circ}C$ ) was severely agglomerated without further grain growth above certain critical size (0.75 ${\mu}{\textrm}{m}$ in length, 0.3 ${\mu}{\textrm}{m}$ 11m in diameter).


  • 주제어

    Whisker and short rod shaped hydroxyapatite .   Hydrolysis .   Hydrothermal reaction .   $\alpha$- $Ca_3$( $PO_4$) $_2$.  

  • 참고문헌 (19)

    1. Hydrothermal Preparation of calcium Hydroxyapatite Powders , T.Hattori;Y.Iwadate , J. Am. Ceram. Soc. / v.73,pp.1803-1805,
    2. Hydrothermal Processing of Hydroxyapatite: Past, Present, and Futere , J.Yoshimura;H.Suda;P.Brown(ed.);B.R.Constantz(ed.) , Hydroxyapatite and Related Materials / v.,pp.45-72,
    3. Hydroxyapatite , J.Czernuszka;D.Bloor(ed.);R.Brook(ed.);M.C.Flemings(ed.);S.Mahajan(ed.) , Encyclopedia of Advanced Materials, Vol 2 / v.,pp.1074-1076,
    4. Transformation of α-TCP to HAP in Organic Media , K.Sakamoto;M.Okazaki;A.Nakahira;S.Yamaguchi , Bioceramics / v.10,pp.241-244,
    5. Effect of additives on Hydration and Hardening of Tricalcium Phosphate , H.Monma;M.Goto;T.Kohmura , Bypsum & Lime / v.188,pp.11-16,
    6. Hydrosyapatite Formation on Crystallized Bioactive Glass Coat on Alumina , E.S.Lee;S.S.Jee;C.Y.Kim , J. Kor. Ceram. Soc. / v.40,pp.255-261,
         
    7. Fabrication of Hydroxyapatite Whiskers by Hydrolysis of α-TCP , D.J.Baek;T.Y.Yang;Y.B.Lee;S.Y.Yoon;H.C.Park , J. Kor. Ceram. Soc. / v.40,pp.608-614,
         
    8. Changes in Composition and Structure of Tricalcium Phosphate under Different pH Conditions , H.Monma;S.Ueno;M.Tsutsumi;T.Kanazawa , Yogyo-Kyokai-Shi / v.86,pp.590-597,
    9. Raman and Infrared Spectroscopic Investigation of Biological Hydroxyapayite , M.A.Walters;Y.C.Leung;N.C.Blumenthal;R.Z.LeGeros;K.A.Konsker , J. Inorg. Biochem. / v.39,pp.193-200,
    10. Preparation of various Calcium-Phosphate Powders by Ultrasonic Spray Freeze-Drying Technique , K.Itatani;K.Iwafune;F.S.Howell;M.Aizawa , Mater. Res. Bull. / v.35,pp.575-585,
    11. Hydrothermal Synthesis of Calcium Deficient Hydroxyapatite with Controled Size and Homogeneous Morphology , M.Andres Verges;C.Fermandez Gonzales;M.Martines;Gallego , J. Eur. Ceram. Soc. / v.18,pp.1245-1250,
    12. Kinetics of Hydroxyapatite Precipitation at pH 10 to 11 , C.Liu;Y.Huang;W.Shen;J.Chi , Biomaterials / v.22,pp.301-306,
    13. Preparation and Characterization of Synthetic Hydrozyapatite/Polyacrylic Acid Homogeneous Composite , S.K.Lee;H.D.Lee;H.S.Shin;B.K.Lee , J. Kor. Ceram. Soc. / v.39,pp.1097-1102,
         
    14. Novel Preparation Method Hydroxyapatite Fibers , Y.Ota;T.Iwashita;T.Kasuga;Y.Abe , J. Am. Ceram. Soc. / v.81,pp.1665-1668,
    15. The Hydration of α-Tricalcium Phoshpate , H.Monma;T.Kanazawa , Yogyo-Kyokai-Shi / v.84,pp.209-213,
    16. Thermal Stability of Synthethic Hydroxyapatite , Y.Fang;D.K.Agrawal;D.M.Roy;P.Brown(ed.);B.R.Constantsz(ed.) , Hydroxyapatite and Related Materials / v.,pp.269-283,
    17. Crystal Growth of Hydroxyapatite , D.M.Roy , Mater. Res. Bull. / v.6,pp.1337-1340,
    18. Bone Cements in TTCP, DCPA, β-TCP, and PHA System , H.J.Kim;S.C.Choi;J.W.Seok;R.Relle , J. Kor. Ceram. Soc. / v.39,pp.57-67,
         
    19. Novel Synthesis Method of Hydroxyapatite Whisekrs by Hydrolysis of α-Tricalcium Phosphate in Mixtures of Water and Organic Solvent , A.Nakahira;K.Sakamoto;S.Yamaguchi;M.Kaneno;S.Takeda;M.Okazaki , J. Am. Ceram. Soc. / v.82,pp.2029-2032,
  • 이 논문을 인용한 문헌 (4)

    1. 2004. "Microstructure Evolution of Solid State Reacted HAp/β-TCP Composite Powders by Post-Treatment Processing" 한국세라믹학회지 = Journal of the Korean Ceramic Society, 41(8): 582~587     
    2. Song, Chang-Weon ; Kim, Tae-Wan ; Kim, Dong-Hyun ; Park, Hong-Chae ; Yoon, Seog-Young 2010. "Synthesis and characterization of silicon ion substituted biphasic calcium phosphate" 한국결정성장학회지 = Journal of the Korean crystal growth and crystal technology, 20(5): 243~248     
    3. Song, Yong-Keun ; Kim, Dong-Hyun ; Kim, Tae-Wan ; Kim, Yang-Do ; Park, Hong-Chae ; Yoon, Seog-Young 2010. "Determination of stoichiometric Ca/P ratio in biphasic calcium phosphates using X-ray diffraction analysis" 한국결정성장학회지 = Journal of the Korean crystal growth and crystal technology, 20(2): 93~100     
    4. Kim, Dong-Hyun ; Song, Chang-Weon ; Kim, Tae-Wan ; Jin, Heoyng-Ho ; Park, Hong-Chae ; Yoon, Seog-Young 2011. "Characterization of the biodegradable behavior for biphasic calcium phosphates using X-ray diffraction and lattice parameter" 한국결정성장학회지 = Journal of the Korean crystal growth and crystal technology, 21(4): 169~174     

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