Preparation and characterization of a novel Si-incorporated ceramic film on pure titanium by plasma electrolytic oxidation

IMR OpenIR

	Preparation and characterization of a novel Si-incorporated ceramic film on pure titanium by plasma electrolytic oxidation
	W. Zhang; K. Q. Du; C. W. Yan; F. H. Wang
	2008
发表期刊	Applied Surface Science
ISSN	0169-4332
卷号	254 期号:16 页码:5216-5223
摘要	A Si-incorporated bioactive ceramic film was prepared on pure titanium by plasma electrolytic oxidation (PEO) in a new bath containing Ca(2+), H(2)PO(4)(-) and SiO(3)(2-). The film was characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD) and X-ray photoelectron spectroscope (XPS). The apatite-induced ability of PEO film was evaluated by soaking in a simulated body fluid (SBF) for various periods. The results showed that Si-incorporated PEO film present a porous microstructure, the pore size is around 1-5 mu m. The film mainly consists of anatase and rutile and a small amount of CaHPO(4) and CaO, besides, bioactive compounds such as CaSiO(3) and SiO(2), also exist in the Si-incorporated PEO film. After immersion in SBF for 28 days, not only the surface layer but also the pores inside the Si-incorporated PEO film were completely filled by apatite crystals, whereas on the surface of a benchmark PEO film free of Si just present small piles of apatite crystals. Silicon incorporated into the PEO film provided more heterogeneous nucleation sites for apatite deposition and hence increased remarkably bioactivity of the PEO film. (C) 2008 Elsevier B.V. All rights reserved.
部门归属	[zhang, wei; yan, chuanwei; wang, fuhui] chinese acad sci, met res inst, state key lab corros & protect, shenyang 110016, peoples r china. [du, keqin] dalian jiaotong univ, coll environm sci & engn, dalian 116028, peoples r china.;yan, cw (reprint author), chinese acad sci, met res inst, state key lab corros & protect, 62 wencui rd, shenyang 110016, peoples r china;cwyan@imr.ac.cn
关键词	Titanium Plasma Electrolytic Oxidation Ceramic Film Bioactivity Apatite Simulated Body-fluid Micro-arc Oxidation Apatite Formation Surface-structure Oxide Films In-vitro Coatings Wollastonite Hydroxyapatite Ca
URL	查看原文
WOS记录号	WOS:000255728500049
引用统计	被引频次：63[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/33340
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	W. Zhang,K. Q. Du,C. W. Yan,et al. Preparation and characterization of a novel Si-incorporated ceramic film on pure titanium by plasma electrolytic oxidation[J]. Applied Surface Science,2008,254(16):5216-5223.
APA	W. Zhang,K. Q. Du,C. W. Yan,&F. H. Wang.(2008).Preparation and characterization of a novel Si-incorporated ceramic film on pure titanium by plasma electrolytic oxidation.Applied Surface Science,254(16),5216-5223.
MLA	W. Zhang,et al."Preparation and characterization of a novel Si-incorporated ceramic film on pure titanium by plasma electrolytic oxidation".Applied Surface Science 254.16(2008):5216-5223.