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	Calcium phosphate coating on magnesium alloy for modification of degradation behavior
	Fu-zhai Cui ; Jing-xin Yang ; Yan-peng Jiao ; Qing-shui Yin ; Yu Zhang ; In-Seop Lee
	2010-10-12 ; 2010-10-12
关键词	Experimental/ biomedical materials bonds (chemical) calcium compounds coating techniques liquid phase deposited coatings liquid phase deposition scanning electron microscopy X-ray chemical analysis X-ray diffraction/ coating magnesium alloy degradation behavior bioactivity bone inductivity supersaturated calcification solution phase structure morphology bonding strength corrosion energy dispersive spectrometer scanning electron microscopy X-ray diffraction size 10 mum size 20 mum CaPO/sub 4/ MgJkJk/ A8160B Surface treatment and degradation of metals and alloys A8115L Deposition from liquid phases (melts and solutions) A6855 Thin film growth, structure, and epitaxy A8770M Biomedical materials A8280D Electromagnetic radiation spectrometry (chemical analysis)/ size 1.0E-05 m size 2.0E-05 m/ CaPO4/ss PO4/ss O4/ss Ca/ss O/ss P/ss Mg/sur Mg/ss
中文摘要	Magnesium alloy has similar mechanical properties with natural bone, but its high susceptibility to corrosion has limited its application in orthopedics. In this study, a calcium phosphate coating is formed on magnesium alloy (AZ31) to control its degradation rate and enhance its bioactivity and bone inductivity. Samples of AZ31 plate were placed in the supersaturated calcification solution prepared with Ca(NO/sub 3/)/sub 2/, NaH/sub 2/PO/sub 4/ and NaHCO/sub 3/, then the calcium phosphate coating formed. Through adjusting the immersion time, the thickness of uniform coatings can be changed from 10 to 20 mu m. The composition, phase structure and morphology of the coatings were investigated. Bonding strength of the coatings and substrate was 2-4 MPa in this study. The coatings significantly decrease degradation rate of the original Mg alloy, indicating that the Mg alloy with calcium phosphate coating is a promising degradable bone material.
语种	英语
出版者	Springer ; China
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/78370]
专题	清华大学
推荐引用方式 GB/T 7714	Fu-zhai Cui,Jing-xin Yang,Yan-peng Jiao,et al. Calcium phosphate coating on magnesium alloy for modification of degradation behavior[J],2010, 2010.
APA	Fu-zhai Cui,Jing-xin Yang,Yan-peng Jiao,Qing-shui Yin,Yu Zhang,&In-Seop Lee.(2010).Calcium phosphate coating on magnesium alloy for modification of degradation behavior..
MLA	Fu-zhai Cui,et al."Calcium phosphate coating on magnesium alloy for modification of degradation behavior".(2010).

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