Journal of the Ceramic Society of Japan
Online ISSN : 1348-6535
Print ISSN : 1882-0743
ISSN-L : 1348-6535
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Fabrication of low crystalline B-type carbonate apatite block from low crystalline calcite block
Kunio ISHIKAWAShigeki MATSUYAXin LINZhang LEITetsuya YUASAYouji MIYAMOTO
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2010 Volume 118 Issue 1377 Pages 341-344

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Abstract

Low crystalline B-type carbonate apatite (CO3Ap) block was fabricated by compositional transformation based on dissolution–precipitation reaction using microporous low crystalline calcite block as a precursor. In other words, microporous low crystalline calcite block prepared by carbonation of Ca(OH)2 compact was phosphoridated by exposing to 1 mol·dm−3 Na2HPO4 solutions at 60°C for 14 days. XRD, FT-IR and SEM analysis showed that calcite block completely transformed into B-type CO3Ap keeping its macroscopic morphology. Diametral tensile strength of the low-crystalline B-type CO3Ap block was approximately 5.4 MPa, and this value was much higher when compared with the low-crystalline calcite block, 0.73 MPa. Low crystalline B-type CO3Ap block fabricated in this method could be an ideal bone replacement due to its close similarity in its inorganic chemical composition and crystallinity to bone.

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© 2010 The Ceramic Society of Japan
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