Synthesis and Evaluation of Calcium-Deficient Hydroxyapatite with SiO2
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1198
K-edge indicated the XANES spectra of HAP/10 ~ 30
wt% SiO2 heat-treated at 600˚C were different from that
of monolithic HAP and HAP/3 wt% SiO2 samples. These
results of micro- and local structure of modified HAP
suggest that was substituted for
4
4
SiO3
4
PO
in hy-
droxyapatite structure.
5. Acknowledgements
We thank UVSOR for the support of XAFS measure-
ment at BL1A in UVSOR. This work was partly sup-
ported by Grant-in Aid for Scientific Research on Pri-
mary Area “Nano-materials Science for Atomic Scale
Modification (area No. 474)”.
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