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醫(yī)用316L不銹鋼支架表面沉積(Fe/Pd)n薄膜的研究
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國家自然科學(xué)基金（30470486）；中國博士后科學(xué)基金面上資助金（20070410383）；中國博士后科學(xué)基金特別資助金（200801439）


Deposition of (Fe/Pd)n Film on Medical 316L Stainless Steel Stent Surface
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    摘要:

    采用真空電弧離子鍍技術(shù)，在醫(yī)用316L不銹鋼支架上沉積近等原子比的(Fe/Pd)n多層膜。用X射線衍射、掃描電鏡、電子能譜研究(Fe/Pd)n多層膜的晶體結(jié)構(gòu)、形貌和成分，分析相的轉(zhuǎn)變。用CTCC-1數(shù)字磁通磁場測量儀測量樣品的磁性。結(jié)果表明：醫(yī)用316L不銹鋼支架表面磁性膜的最佳結(jié)構(gòu)為“Pd/Fe/Pd”，經(jīng)擴(kuò)散熱處理后，(Fe/Pd)n薄膜從fcc結(jié)構(gòu)轉(zhuǎn)變?yōu)閒ct結(jié)構(gòu)，薄膜均勻、致密、結(jié)合強(qiáng)度良好，有效磁場強(qiáng)度可達(dá)5×10-4 T以上，有效磁性可維持6個(gè)月。

    Abstract:

    Near-equiatomic (Fe/Pd)n multilayer films were deposited on the surface of medical 316L stainless steel stents by vacuum arc ion plating technology. The crystal structure, morphology and component of (Fe/Pd)n multilayer films were studied by XRD, SEM, and electronic energy spectrum and the phase transformation was also analyzed. The magnetic performances of the samples were detected by CTCC-1 numeral magnetic flux and magnetic field measurement instrument. The results indicate that the optimum structure of superficial magnetic films on medical 316L steel stents is “Pd/Fe/Pd”. After diffusion heat treatment, (Fe/Pd)n films changed from face-center-cubic (fcc) structure to face-center-tetragonal (fct) structure. The film is uniform with high density and good bonding strength. At the same time, its effective magnetic strength is to up to 5×10-4 T for 6 months.

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胡 濤,李爭顯,麻西群,周 廉,介萬奇,王海昌.醫(yī)用316L不銹鋼支架表面沉積(Fe/Pd)n薄膜的研究[J].稀有金屬材料與工程,2009,38(8):1437~1440.[Hu Tao, Li Zhengxian, Ma Xiqun, Zhou Lian, Jie Wanqi, Wang Haichang. Deposition of (Fe/Pd)n Film on Medical 316L Stainless Steel Stent Surface[J]. Rare Metal Materials and Engineering,2009,38(8):1437~1440.]
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  • 收稿日期:2008-07-30
  • 最后修改日期:2009-05-12
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