TY - JOUR
T1 - Fabrication of high-dispersibility nanocrystals of calcined hydroxyapatite
AU - Okada, Masahiro
AU - Furuzono, Tsutomu
N1 - Funding Information:
Acknowledgments We thank Dr. K. Sato of the Advanced Manufacturing Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), for helpful discussions. This work was partially supported by a grant from PRESTO, Japan Science and Technology Agency, and a Research Grant for Cardiovascular Diseases from the Ministry of Health, Labour and Welfare, Japan.
PY - 2006/8
Y1 - 2006/8
N2 - The fabrication of nano-sized and calcined HAp crystals protected against calcination-induced sintering using an anti-sintering agent interspersed between the particles was studied. Calcium hydroxide was selected as an ant-sintering agent as it would not melt at the calcination temperature, and could be removed by washing with water after calcination. Starting HApparticles with low crystallity were prepared with a modified emulsion system at 25°C, and the resulting product was centrifugally washed and redispersed in water. X-ray diffraction (XRD) and Fourier-transform infrared spectroscopy (FTIR) were performed to examine the effect of Ca(OH)2 on the crystal phase and composition of HAp. The results of the study show that calcination with an an-sintering agent has a potential application to a wide range of calcined nanoceramic powders, such as alumina, titania, and magnesia.
AB - The fabrication of nano-sized and calcined HAp crystals protected against calcination-induced sintering using an anti-sintering agent interspersed between the particles was studied. Calcium hydroxide was selected as an ant-sintering agent as it would not melt at the calcination temperature, and could be removed by washing with water after calcination. Starting HApparticles with low crystallity were prepared with a modified emulsion system at 25°C, and the resulting product was centrifugally washed and redispersed in water. X-ray diffraction (XRD) and Fourier-transform infrared spectroscopy (FTIR) were performed to examine the effect of Ca(OH)2 on the crystal phase and composition of HAp. The results of the study show that calcination with an an-sintering agent has a potential application to a wide range of calcined nanoceramic powders, such as alumina, titania, and magnesia.
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U2 - 10.1007/s10853-006-0444-6
DO - 10.1007/s10853-006-0444-6
M3 - Article
AN - SCOPUS:33748678294
SN - 0022-2461
VL - 41
SP - 6134
EP - 6137
JO - Journal of Materials Science
JF - Journal of Materials Science
IS - 18
ER -