A15 超音波照射によるリン酸カルシウムの合成(口頭発表)

概要

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This study investigated synthesis of hydroxyapatite (HAp) with high specific surface area by ultrasound irradiation. In the case of stirring, the formation was CaHPO_4・2H_2O, and HAp was not formed. Amorphous calcium phosphate (ACP) was formed in early reaction by X-ray diffraction and IR when the ultrasound was irradiated in the suspension. The crystallization time from ACP to HAp was increased with the rise of temperature. The specific surface area of HAp which was formed by irradiating ultrasound for 7min at 15℃ was approximately 180m^2/g, and then the specific surface area was decreased because temperature was rose. When initial temperature was 30℃, the specific surface area of HAp was maximum value of 250m^2/g for 3min. The Ar and N_2 gases were effective to form HAp with high specific surface area.
日本ソノケミストリー学会の論文
2013-10-25