Phase Developments and Microstructure Changes of Calcium Phosphate Powders Synthesized by Recycling Eggshell

달걀껍질의 재 사용에 의해 제조 된 생체용 Calcium Phosphate 분말의 상변화 거동 및 미세구조 변화에 관한 연구

  • Lee Sang-Jin (Dept. of Advanced Materials Science and Engineering, Mokpo National University) ;
  • Kim Joo-Won (Dept. of Advanced Materials Science and Engineering, Mokpo National University)
  • 이상진 (국립목포대학교 신소재공학) ;
  • 김주원 (국립목포대학교 신소재공학)
  • Published : 2004.10.01


Calcium phosphate powders were successfully synthesized by using re-cycled eggshell and phosphoric acid. The crystallization behavior and powder morphologies of the synthesized powders were dependent on the starting condition of the eggshell, the mixing ratio and method of the eggshell and phosphoric acid, and calcination temperature. In general, $\beta$-tricalcium phosphate was stably synthesized at about $900^{\circ}C$ for 1h at each proper mixing ratio. And, the synthesized powders showed the similar microstructures to the morphology of original eggshell with uniform particle sizes. In this study, the calcium phosphate powders were synthesized with eggshell in various processing method. And their unique microstructures obtained from the eggshell were also. observed. The crystalline developments and microstructures of the synthesized powders were examined by X-ray diffractometer and scanning electron microscopy.


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