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in tensile strength increasing from 15 to 54 MPa. To evaluate the heat-resisting properties of PVdF and PVdF/clay nanocomposite membranes, we measured the film shrinkage along the MD and TD after heat... method to improve the mechanical strength in porous membrane supports, especially in a separator. Key words: Li-ion battery; separator; poly(vinylidene fluoride); nanocomposite 1 Introduction......
into the oxide film during the anodizing process and preferentially concentrate within internal cavities and micro-cracks. The ball-on-disk sliding tests indicate that SiC-containing oxide films register much... film (3.73×10-8 A/cm2). The synthesized composite film has good anti-wear and anti-corrosion properties and the growth mechanism of nanocomposite film is also discussed.Key words:Ti6Al4V alloy; anodic......
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Computer Simulation of Effect of Intergrain Exchange Interaction on Magnetic Properties of Nanocomposite Magnets Mukaino H1,Fukunaga H2 (1.Graduate School of Science & Technology, Nagasaki... properties of nanocomposite magnets were investigated by using the computer simulation based on the micromagnetic theory. The simulation was carried out under the assumptions that the strength......
脉冲电镀Ni-SiC镀层及其表征王勇1,高杨1,马春华21. 东北石油大学机械科学与工程学院材料系2. 大庆油田有限责任公司采油四厂摘 要:采用脉冲电镀的方法制得Ni-SiC镀层,研究电参数和热处理温度对Ni-SiC镀层表面形貌,显微硬度及结合力的影响.结果表明:在适宜的脉冲电流作用下,镀层组织得到进一步细化,镀层中的SiC颗粒含量增加,从而获得细密,平整的镀层;热处理温度对Ni-SiC镀层的显微硬度和结合力有较大影响,当热处理温度为300℃,脉冲电镀制备的3种镀层显微硬度达到最大值,分别为880HV,903HV,896HV;镀层的结合力达到最大值,分别为76,78,77 N.关键词:脉冲电镀;热处理;表面形貌;显微硬度;......
was obtained for the nanocomposite structure produced through the TiO2 incorporation after the PAni film synthesis.The modified electrodes were structurally and morphologically characterized...New Nanocomposite Materials by Incorporation of Nanocrystalline TiO2 Particles into Polyaniline Conductive FilmsF.J.Feliciano,O.C.MonteiroDepartment of Chemistry and Biochemistry and CQB,Faculty......
第一性原理计算TiN(111)/BN/TiN(111)界面的电子结构,成键特性和结合强度 田晓1,牛建钢1,王翠表1,王宝军1 (1.河北大学质量技术监督学院,保定,071001) 摘要:利用第-性原理计算方法研究了TiN(111)/BN/TiN(111)界面的16个理论界面构型.计算结果表明,最稳定界面构型为top-top-BN构型,此构型中B原子只与周围N原子成键,为四面体配位.同时计算了top-top-BN构型的电子结构和成键特性以及界面结合强度,结果表明,top-top-BN构型界面上的键为较强共价键,其界面结合强度比TiN(111)板层或TiN块体材料的(111)晶面间的结合强度大,说明此构型具有强界面特征. 关键词:纳米复合薄膜; 氮化物; 界面; 第一性原理; nanocomposite film; nitride; interface; first......
离心高速电沉积Ni-SiC复合镀层的研究 姚枚1,邵光杰1,荆天辅1,王海燕1,秦秀娟1 (1.燕山大学,材料化工学院,秦皇岛,066004) 摘要:利用自制的离心高速电沉积实验装置,研究了镀液温度,镀液pH值,电流密度,镀液中SiC浓度和阴极旋转速度对Ni-SiC复合镀层中SiC含量的影响;同时还对镀层中SiC微粒的分布情况及镀层的性能进行了研究.结果表明:温度,电流密度,镀液中的SiC含量及阴极旋转速度对镀层中复合粒子的含量有显著的影响,而pH值对镀层中SiC含量影响不大.利用离心高速电沉积方法能够制备出高体积分数的,微粒分布均匀的Ni-SiC复合镀层.所制备的高体积分数的Ni-SiC复合镀层硬度和耐磨性能优于普通槽镀镀层. 关键词:复合电沉积; Ni-SiC; 高速电沉积; 离心力场; [全文内容正在添加中] ......
Effect of Gallium Addition on Magnetic Properties of Nd2Fe14B-Based/α-Fe Nanocomposite Magnets Ni Jiansen1,Dong Yuanda1,Bai Qin1,Zhang Shiyan1,Wang Hailong1,Xu Hui1 (1.Institute of Materials, Shanghai University, Shanghai 200072, China) Abstract:The influence of Ga addition on the crystallization behavior and the magnetic properties of nanocomposite Nd2Fe14B-based/α-Fe magnets was investigated......
Preparation and Magnetic Properties of Melt-Spinning Nd2Fe14B/α-Fe Nanocomposite Magnets 李强1,倪建森1,王占勇1,徐晖1,王伟1,周邦新1 (1.Institute of Materials,Research Center of Nano-Science and Nano-Technology... and microstructure were studied. The results reveal that fine nanocomposite microstructure consisting of Nd2Fe14B and α-Fe phases can be developed at an optimum wheel speed of about 21 m·s-1. After optimal......
