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J. Korean Ceram. Soc. > Volume 35(3); 1998 > Article
Journal of the Korean Ceramic Society 1998;35(3): 209.
$CO_3$$^{2-}$치환을 이용한 화학양론조성 수산화 아파타이트 분말의 합성
전성재, 김석영, 한주환
영남대학교 금속공학 및 재료공학부
Syntjesos of Stoichiometric Hydroxyapatite Powder by $CO_3$$^{2-}$ Substitution During Precipitation
Ca-deficiency frequently observed in the hydroxyapatite powders prepared by precipitation which is known to be deleterious for its application to biomaterials was prevented by the technique developed in this study. In addition the prepared powder has been revealed to be quite active that full density is achieved at temperatures as low as 100$0^{circ}C$ Instead of using N2 air was chosen as the processing atmosphere during the precipitation and aging of hydroxyapatite. {{{{ {CO }`_{3 } ^{2- } }} ions from the processing atmosphere(air) substitute partly for {{{{ {PO }`_{4 } ^{3- } }} ions in the hydroxyapatite and its content can be controlled by pH of the solution where the pre-cipitation reaction occurs
Key words: Hydroxyapatite, Powders, Stoichiometric, Carbonate, ca/P, Sintering, Density
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