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NiTi合金基TiN薄膜的血液相容性和耐腐蝕性研究
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TG146.4

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教育部留學(xué)歸國(guó)人員科研啟動(dòng)基金及中國(guó)科學(xué)院蘭州化學(xué)物理研究所固體潤(rùn)滑國(guó)家重點(diǎn)實(shí)驗(yàn)室基金資助


Studies on Blood Compatibility and Corrosion Resistance of TiN Films on NiTi Alloys
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    摘要:

    采用電弧離子鍍法在NiTi形狀記憶合金表面制備了TiN薄膜，利用X射線衍射、掃描電子顯微鏡和原子力顯微鏡研究了TiN薄膜的相組成及表面特性；在生物體外，研究比較了鍍膜和未鍍膜的NiTi合金的血液相容性和耐腐蝕性。結(jié)果表明：TiN薄膜提高了NiTi合金的血液相容性，并使Ni離子的釋放率約降低了1個(gè)數(shù)量級(jí)，有效地提高了NiTi合金的耐腐蝕性。薄膜越厚性能提高的效果越顯著。

    Abstract:

    TiN films were deposited onto the NiTi shape memory alloys by an arc ion plating technique. The phase identification and surface characteristics of the specimens were successively performed and tested by X-ray diffraction, scanning electron microscope and atom force microscopy. We investigated and compared compatibility and corrosion properties of NiTi alloys in vitro blood with and without TiN film. Experimental results indicated that the TiN film had improved the blood compatibility and corrosion resistance properties of NiTi alloy, and the release rate of Ni ions was reduced about one magnitude after plated TiN film; the thicker the film was, the more the properties improved.

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李波 李小俠 王天民 程峰. NiTi合金基TiN薄膜的血液相容性和耐腐蝕性研究[J].稀有金屬材料與工程,2007,36(5):857~861.[Li Bo, Li Xiaoxia, Wang Tianmin, Cheng Feng. Studies on Blood Compatibility and Corrosion Resistance of TiN Films on NiTi Alloys[J]. Rare Metal Materials and Engineering,2007,36(5):857~861.]
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  • 最后修改日期:2006-05-25
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