共查询到18条相似文献,搜索用时 62 毫秒
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为进一步提高牙科材料的生物相容性、耐磨性和耐腐蚀性能,将离子束辅助沉积制备TiN纳米薄膜技术引入到铁铬钼牙科材料的研究中,在Fe-Cr-Mo合金基体上制备了TiN薄膜.测定了表面膜层的显微硬度,在模拟口腔环境的溶液中,采用电化学方法,对经不同工艺参数沉积TiN薄膜的牙科用Fe-Cr-Mo合金的耐蚀性进行测试,并以未进行表面镀膜的Fe-Cr-Mo合金为对照.结果表明:经TiN镀膜处理的Fe-Cr-Mo软磁合金硬度明显增加,在口腔环境中的耐腐蚀性较未经表面镀膜处理的有明显提高.工艺参数不同,硬度增加的程度不同,耐蚀性差别也较大,当氮气流量为1.5mL/min,溅射时间为4h时,得到的膜厚为2μm,此时TiN膜硬度最高,在口腔溶液中耐腐蚀性最好. 相似文献
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离子束辅助磁控溅射沉积TiN薄膜的研究 总被引:17,自引:2,他引:17
利用三离子束辅助沉积设备,以离子束辅助沉积、磁控溅射和离子束辅助磁控溅射几种工艺在GCr15基体上沉积TiN薄膜。实验结果表明:离子束辅助磁控溅射有效地提高了薄膜的硬度、耐磨性和耐蚀性,改善了膜基结合力。 相似文献
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离子束增强沉积TiN薄膜界面结合强度的研究 总被引:6,自引:0,他引:6
利用划痕法测定了离子束增强沉积TiN薄膜的界面结合力。结果表明,由于在离子束增强沉积过程中TiN薄膜和基体之间生成一层厚约30 ̄40nm的过渡层,从而大大改善了涂层的界面结合强度,其临界载荷可达140N,为一般PVD和CVD方法所生成的TiN膜的3 ̄4倍,并且发现它并不随膜厚的增加而变化。 相似文献
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研究了在W18Cr4V高速钢基体上,用CO2连续激光诱导化学气相沉积TiN薄膜的工艺方法。激光功能600W,在H2、N2、TiCl4反应系统中沉积出TiN薄膜,薄膜的颜色呈金黄色,显微硬度为2500HV。 相似文献
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ZHOU Jiankun LIU Xianghuai CHEN Youshan WANG Xi ZHENG Zhihong HUANG Wei ZOU Shichang Shanghai Institute of Metallurgy Academia Sinica Shanghai China 《金属学报(英文版)》1990,3(11):345-349
The TiN films were synthesized with an alternate process of depositing titanium from a E-gunevaporation source and 40 keV N~+ bombarding onto the target.It is shown from the composi-tion analysis and structure investigations using RBS,AES,TEM,XPS and X-ray diffractionspectrum that the formed fihns are mainly composed of TiN phase with grain size of 30—40nm and without preferred orientation,the nitrogen content in the film is much less than that incase without N~+ bombarding,and an intermixed region about 40 nm thick exists between thefilm and the substrate.The films exhibt high microhardness and low friction. ZHOU Jiankun,Ion Beam Laboratory,Shanghai Institute of Metallurgy,Academia Sinica,Shanghai 200050,China 相似文献
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WANG Xi YANG Genqing LIU Xianghuai ZHENG Zhihong HUANG Wei ZHOU Zuyao ZOU Shichang Ion Beam Laboratory Shanghai Institute of Metallurgy Academia Sinica shanghai China 《金属学报(英文版)》1992,5(11):370-374
A new method for preparation of hard TiN films has been developed by using electronbeam evaporation-deposition of Ti and bombardment with 40 keV Xe~+ ion beam ina N_2 gas environment.The synthesized TiN films were superior to PVD and CVDones in respects of improved adhesion to substrate and low preparing temperature.Theyexhibited good wear resistance and high hardness up to 2200 kg/mm~2.Some industrialapplications have been reported. 相似文献
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本文建立了一个适用于描述离子束增强沉积(Ion Beam Enhanced Deposition,即IBED)过程的Monte-Carlo计算机模拟程序。程序由离子注入计算和蒸发沉积计算两大部分组成。离子注入计算以二体碰撞近似为基础,以随机固体为靶模型,对入射离子和所有反冲原子的力学运动进行跟踪。程序中考虑了沉积原子对靶室中某些残余气体分子的吸附;还表达了靶的组份及密度在IBED过程中的不断变化,从而实现了靶的动态化。该程序可以提供IBED薄膜组份的深度分布、界面混合以及能量沉积等信息。计算结果表明,在IBED氮化钛薄膜中,Ti沉积速率对薄膜组份有很大影响。当沉积速率较低时,薄膜组份基本与注入离子和沉积原子的到达率比(N/Ti)无关。膜与基体间的混合层厚度随离子原子到达率比(N/Ti)增加而增加。计算结果与实验测试结果符合很好。 相似文献
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用离子束增强沉积方法制备了SiN薄膜,其中Si由一束Ar离子从Si靶上溅射下来,在溅射沉积的同时,以一束N离子轰击正在沉积的膜层,于是获得了SiN膜。采用卢瑟福背散射、红外光谱和透射电镜对膜层的成分和结构进行了分析,结果表明:膜面平整,膜层为非晶或微晶结构,由Si和βSi3N4组成 相似文献
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JIANG Hai TAO Kun LI Hengde Tsinghua University Beijing China lecturer Department of Materials Science Engineering Tsinghua University Beijing China 《金属学报(英文版)》1993,6(11):379-382
BN films,synthesized by ion beam assisted deposition,were analysed by RBS,AES,IR spectra and TEM.Formatiom of c-BN phase was shown not only by IR spectra atabsorption peak of 1100 cm~(-1),but also by electron diffraction pattern.The results ofAES demonstrate an effect of N~+ implantation near the film surface.The deposited filmsconsist of three layers,i.e.,ion implantation layer,film layer and mixed intermediatelayer,according to the difference of concentration.The micro-Knoop hardness of the film is25—35 GPa. 相似文献