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磁控濺射Zr-Ti薄膜的組織結(jié)構(gòu)與血液相容性
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教育部新世紀優(yōu)秀人才支持計劃(NCET-06-0464)；江蘇省自然科學基金(BK2007515)


Microstructure and Blood Compatibility of Zr-Ti Film Depositedby Magnetron Sputtering
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    摘要:

    通過直流平衡磁控濺射法在NiTi SMA表面生成Zr-Ti膜，用SEM、XRD和XPS分析證實制備的Zr-Ti膜呈現(xiàn)晶帶T型結(jié)構(gòu)，組織保持了細小致密的纖維狀特征，與基底結(jié)合良好，并且出現(xiàn)了少量生物惰性ZrO2和TiO2陶瓷相。通過測定溶血率研究血小板黏附行為，評估血液相容性。結(jié)果表明，與NiTi基底相比，Zr-Ti膜的溶血率更低，表面黏附的血小板數(shù)量減少，能夠改善NiTi SMA基底的血液相容性。最后，對磁控濺射沉積Zr-Ti膜的成膜機理進行了探討

    Abstract:

    Zr-Ti film was deposited on the surface of NiTi shape memory alloy (SMA) by balanced magnetron DC sputtering. The results of SEM, XRD and XPS indicate that the Zr-Ti film has the T-type crystal band structure with a fine and dense fibre character. The film has a good combination with NiTi substrate and a small amount of bioinert ZrO2 and TiO2 ceramics phases is found in the film. Blood compatibility was evaluated by hemolysis test and platelet adhesion test. The hemolysis of Zr-Ti film is less than that of NiTi SMA. And the number of platelets on the sample surface is also less than that of Zr-Ti film, which indicates the blood compatibility of NiTi SMA could be improved by the Zr-Ti film. Finally the depositing mechanism of the Zr-Ti film by magnetron sputtering was discussed

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余鳳丹,儲成林,吉宏林,饒 席,張文艷,董寅生,郭 超,盛曉波,林萍華,朱劍豪.磁控濺射Zr-Ti薄膜的組織結(jié)構(gòu)與血液相容性[J].稀有金屬材料與工程,2011,40(3):483~486.[Yu Fengdan, Chu Chenglin, Ji Honglin, Rao Xi, Zhang Wenyan, Dong Yinsheng, Guo Chao, Sheng Xiaobo, Lin Pinghua, Paul K. Chu. Microstructure and Blood Compatibility of Zr-Ti Film Depositedby Magnetron Sputtering[J]. Rare Metal Materials and Engineering,2011,40(3):483~486.]
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  • 收稿日期:2010-03-25
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