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作 者:高林
机构地区:[1]College of Life Science and Technology,Huazhong University of Science and Technology [2]College of Chemistry and Environmental Engineering,Yangtze University,Jingzhou 434023,China
出 处:《Journal of Wuhan University of Technology(Materials Science)》2008年第3期293-297,共5页武汉理工大学学报(材料科学英文版)
基 金:Funded by the Hubei Natural Science Foundation(No.2004ABA113)
摘 要:Hydroxyapatite (HA) coatings on pyrolytic carbon were produced via electrophoretic deposition (EPD) using glycol and ethanol as dispersion medium respectively. The effect of the solubility of HA in the dispersion medium on crack occurrence and adherence of the coating was investigated by means of scanning electronic microscope (SEM) and atomic absorption spectrometer (AAS). The results show that the solubility of HA in glycol is higher than that in ethanol. The usage of glycol as a dispersion medium can reduce the possibility of crack formation and enhance the adhesive strength between the coating and the carbon substrate. The green coatings can be sintered under vacuum at 1 000 ℃ whether the coatings are obtained using ethanol or glycol as dispersion medium. No HA decomposition was observed up to 1 000 ℃ by vacuum sintering by X-ray diffraction (XRD) analysis.Hydroxyapatite (HA) coatings on pyrolytic carbon were produced via electrophoretic deposition (EPD) using glycol and ethanol as dispersion medium respectively. The effect of the solubility of HA in the dispersion medium on crack occurrence and adherence of the coating was investigated by means of scanning electronic microscope (SEM) and atomic absorption spectrometer (AAS). The results show that the solubility of HA in glycol is higher than that in ethanol. The usage of glycol as a dispersion medium can reduce the possibility of crack formation and enhance the adhesive strength between the coating and the carbon substrate. The green coatings can be sintered under vacuum at 1 000 ℃ whether the coatings are obtained using ethanol or glycol as dispersion medium. No HA decomposition was observed up to 1 000 ℃ by vacuum sintering by X-ray diffraction (XRD) analysis.
关 键 词:HYDROXYAPATITE electrophoretic deposition COATINGS dispersion medium GLYCOL
分 类 号:TB304[一般工业技术—材料科学与工程]
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