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中国博士后科学基金(201104569)

作品数:2 被引量:7H指数:1
相关作者:王永高丁巴德纯李建昌蔺增更多>>
相关机构:东北大学沈阳发动机设计研究所更多>>
发文基金:中国博士后科学基金更多>>
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钛种植体表面润湿性控制的实验研究被引量:6
2012年
首先用喷砂酸蚀法对钛种植体表面进行粗化处理,制备出具有微米-纳米双微观孔洞结构的超亲水表面。然后用等离子体氧化的工艺,制备具有超亲水性能的氧化钛表面,发现表面亲水性能随自偏压的增加先减小后增加,随处理时间的增加而减小。在360V自偏压、20 min处理时间和1 ml/min(标准状态)氧气流量时能到超亲水效果的锐钛矿二氧化钛表面。最后尝试用十二烷基三氯硅烷和分子自组装法在粗糙的氧化钛表面制备疏水表面,最大角度可达120°,利用等离子体处理和紫外光照射成功实现了表面由超亲水到疏水之间的转换。
蔺增王永王凤高丁李建昌巴德纯
关键词:钛种植体
Frictional and Optical Properties of Diamond-Like-Carbon Coatings on Polycarbonate被引量:1
2013年
In this work, diamond-like-carbon (DLC) films were deposited onto polycarbonate (PC) substrates by radio-frequency plasma-enhanced cheraical vapor deposition (RF PECVD), and silicon films were prepared between DLC and PC substrates by magnetron sputtering deposition so as to improve the adhesion of the DLC films. The deposited films were investigated by means of field-emission scanning electron microscopy (FE-SEM), X-ray photoelectron spectroscopy (XPS) and Raman spectroscopy. Subsequently, the following frictional and optical properties of the films were measured: the friction coefficient by using a ball-on-disk tribometer, the scratch hardness by using a nano-indenter, the optical transmittance by using a UV/visible spectrometer. The effects of incident power upon the frictional and optical properties of the films were investigated. Films deposited at low incident powers showed large optical gaps, which decreased with increasing incident power. The optical properties of DLC films correlated to the sp^2 content of the coatings. High anti-scratch properties were obtained at higher values of incident power. The anti-scratch properties of DLC films correlated to the sp^3 content of the coatings.
蔺增王凤高丁巴德纯刘春明
关键词:PECVDMICROSTRUCTURE
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