TY - JOUR
T1 - Fabrication of composite coating comprising bioactive calcium and sodium titanates on titanium using calcium hydroxide slurry containing sodium ions
AU - Ohtsu, Naofumi
AU - Semboshi, Satoshi
AU - Abe, Chikage
AU - Tokuda, Susumu
N1 - Funding Information:
The authors gratefully acknowledge Prof. K. Wagatsuma and Dr. T. Ashino for allowing us to use their laboratory. This work was supported by a Grant-in-aid for Young Scientist (B) ( 20791460 ) from the Ministry of Education, Culture, Sports, Science and Technology of Japan.
PY - 2011/3/25
Y1 - 2011/3/25
N2 - We attempted to fabricate a composite coating comprising bioactive calcium and sodium titanates on titanium (Ti) using a calcium hydroxide (Ca(OH)2) slurry containing sodium ions (Na+). The coating procedure was as follows: a Ti substrate was buried in the slurry, which was prepared by mixing Ca(OH)2 powder with NaOH and/or NaCl solution, and the slurry was then heated at 923K in air. This procedure resulted in the formation of a composite coating comprising CaTiO3 and Na4Ti5O12 with a thickness of ca. 430nm on the substrate. When the composite coating was soaked in a simulated body fluid, calcium phosphate precipitated on the surface more rapidly than on a monolayer of CaTiO3. It is likely that dissolved Na+ from the coating promoted the formation of the calcium phosphate.
AB - We attempted to fabricate a composite coating comprising bioactive calcium and sodium titanates on titanium (Ti) using a calcium hydroxide (Ca(OH)2) slurry containing sodium ions (Na+). The coating procedure was as follows: a Ti substrate was buried in the slurry, which was prepared by mixing Ca(OH)2 powder with NaOH and/or NaCl solution, and the slurry was then heated at 923K in air. This procedure resulted in the formation of a composite coating comprising CaTiO3 and Na4Ti5O12 with a thickness of ca. 430nm on the substrate. When the composite coating was soaked in a simulated body fluid, calcium phosphate precipitated on the surface more rapidly than on a monolayer of CaTiO3. It is likely that dissolved Na+ from the coating promoted the formation of the calcium phosphate.
KW - Bioactivity
KW - Calcium phosphate
KW - Chemical treatment
KW - Surface modification
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U2 - 10.1016/j.surfcoat.2011.01.035
DO - 10.1016/j.surfcoat.2011.01.035
M3 - Article
AN - SCOPUS:79952484743
VL - 205
SP - 3785
EP - 3790
JO - Surface and Coatings Technology
JF - Surface and Coatings Technology
SN - 0257-8972
IS - 13-14
ER -