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Novel Preparation Method of Hydroxyapatite Fibers
Author(s) -
Ota Yoshio,
Iwashita Tetsushi,
Kasuga Toshihiro,
Abe Yoshihiro
Publication year - 1998
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1151-2916.1998.tb02529.x
Subject(s) - metaphosphate , aqueous solution , calcium , materials science , leaching (pedology) , chemical engineering , nuclear chemistry , fiber , composite material , mineralogy , chemistry , phosphate , metallurgy , organic chemistry , environmental science , soil science , engineering , soil water
A novel method for preparing calcium hydroxyapatite (Ca 10 (PO 4 ) 6 (OH) 2 : HAp) fibers has been developed. HAp fibers can be prepared successfully by heating a compact consisting of calcium metaphosphate (ß‐Ca(PO 3 ) 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(PO 3 ) 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(PO 3 ) 2 fibers.