Novel Preparation Method of Hydroxyapatite Fibers |
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| Authors: | Yoshio Ota Tetsushi Iwashita Toshihiro Kasuga Yoshihiro Abe |
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| Affiliation: | Yabashi Industries Co., Ltd., Akasaka-cho, Ogaki 503-2213, Japan;Department of Materials Science and Engineering, Nagoya Institute of Technology, Gokiso-cho, Showa-ku, Nagoya 466-8555, Japan |
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| Abstract: | A novel method for preparing calcium hydroxyapatite (Ca10(PO4)6(OH)2: HAp) fibers has been developed. HAp fibers can be prepared successfully by heating a compact consisting of calcium metaphosphate (ß-Ca(PO3)2) fibers with Ca(OH)2 particles in air at 1000°C and subsequently treating the resultant compact with dilute aqueous HCl solution. The ß-Ca(PO3)2 fibers and the Ca(OH)2 in the compact were converted into fibrous HAp and CaO phases by the heating, and the CaO phase was removed by acid-leaching. HAp fibers obtained in the present work were 40-150 µm in length and 2-10 µm in diameter. The fibers had almost the same dimensions as those of the ß-Ca(PO3)2 fibers. |
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