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J. Korean Ceram. Soc. > Volume 41(12); 2004 > Article
Journal of the Korean Ceramic Society 2004;41(12): 921.
doi: https://doi.org/10.4191/kcers.2004.41.12.921
본차이나 소지용 인산칼슘 분말의 제조 및 적용에 관한 연구
김윤성, 김준이, 유중환, 김형태
요업기술원 소재팀
A Study on the Preparation and Application of Calcium Phosphate Powder to Bonechina Clay
Yun-Sung Kim, Juny Kim, Jung-Whan Yoo, Hyung-Tae Kim
Materials Team, Korea Institute of Ceramic Engineering and Technology
ABSTRACT
Calcium phosphate powders have been prepared by using $Ca(OH)_2;and;H_{3}PO_4$ solution under various conditions such as pH, calcination temperature, and reaction time. ${beta}-TCP({beta}-tricalcium phosphate)$and HAp(hydroxyapatite) were synthesized at pH=5.21 and pH > 7.62, respectively. From XRD results, $Ca(OH)_2;and;H_{3}PO_4$ solution reacted quickly to form HAp, which was structurally stable up to 16h. Calcination temperature having good crystallinity is revealed to be at $1200^{circ}C$. SEM analysis showed that ${beta}-TCP$ and HAp with needle type were synthesized at pH 5.21 and pH 7.62, respectively. However, at pH 9.16, tiny and homogeneous HAp having sphere was prepared and rearranged to show needle morphology. HAp synthesized at pH 9.16 was utilized as bonechina body and calcined. The sample was analyzed its crystallinity, water absorbtion, color, and shape to check physical properties.
Key words: Hydroxyapatite, Bonechina, Water absorption
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