Calcium phosphate formation on nanocrystalline ZrO2 thin film prepared by using a zirconium naphthenate.
To investigate the calcium phosphate forming ability of ZrO(2) thin film, we prepared ZrO(2)/Si structure by a chemical solution deposition with a zirconium naphthenate as a starting material. Precursor sol was spin-coated onto the cleaned Si substrate and prefired at 500 degrees C for 10 min in air, followed by final annealing at 800 degrees C for 30 min in air. Surface morphology and surface roughness of the annealed layer were characterized by field emission-scanning electron microscope and atomic force microscope. After soaking for 5 days in a simulated body fluid, formation of the calcium phosphate on nanocrystalline ZrO(2) layer annealed at 800 degrees C was observed by energy dispersive X-ray spectrometer. Fourier transform infrared spectroscopy revealed that carbonate was substituted into the calcium phosphate.
Hwang
Kyu-Seog
KS
School of Automotive and Mechanical Engineering and Institute of Manufacturing and Automation System, Nambu University, 864-1 Wolgye-dong, Gwangsan-gu, Gwangju 506-824, South Korea. khwang@mail.nambu.ac.kr
Yun
Yeon-Hum
YH
Kang
Bo-An
BA
Kim
Sang-Bok
SB
Jang
Seung-Wook
SW
Kim
Chi-Kyoon
CK
Oh
Jeong-Sun
JS