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    CARBON BLACK-RUBBER COATING COMPOSITES AND ITS ELECTRICAL PROPERTIES
    炭黑/橡胶涂层复合材料导电性能的研究
    ZrC/ZrB2 multilayered coating and monolithic ZrC and ZrB2 coatings on Si(100) were prepared by r. f. magnetron sputtering system.
    采用射频磁控溅射方法在Si(100)基底上制备了一系列ZrC/ZrB2纳米多层膜和ZrC,ZrB2单层薄膜.
    Scanning electron microscopy(SEM),MS-T3000 friction wear tester and profiler(XP-2) were employed to investigate the microstructure and wear resistance of the coatings.
    通过扫描电子显微镜(SEM),MS-T3000摩擦磨损仪及表面轮廓仪(XP-2)研究了薄膜的微结构和耐磨性.
    SiO_2/S composite coating was prepared on HP40 alloy substrate via atmospheric pressure chemical vapor deposition ( APCVD ) , using dimethyl - disulfide (DMDS) and tetraethyl orthoslicate (TEOS) as the reagents.
    以二甲基二硫(DMDS)和正硅酸乙酯(TEOS)为反应物,采用常压化学气相沉积法在HP40合金基体上成功制备了SiO2/S复合涂层。
    The coatings with thickness of 1 mm give a microwave absorption of 8 dB with a band width of 7 GHz(7.6~14.6 GHz) and the microwave absorption of the modified flaky metal magnetic powders is improved.
    用金属磁粉制备1 mm厚的吸波涂层,涂层在8 dB的吸收带宽由改性前的3.2 GHz(7.0~10.2 GHz)增加到改性后的7 GHz(7.6~14.6 GHz),改善了吸收剂的吸波性能。
    Al-Si alloy coating was prepared on the surface of SiC coated carbon-carbon composites by slurry method. Microstructure and oxidation resistance of as-prepared SiC/Al-Si multi-layer coating were studied by XRD,SEM,and isothermal oxidation test under 1500℃ in air respectively.
    采用料浆法在碳/碳复合材料碳化硅(SiC)内涂层表面制备了Al-Si合金外涂层,采用XRD和SEM分析了涂层的微观结构,并测试了带有SiC/Al-Si复合涂层的碳/碳复合材料试样在1500℃静态空气中的抗氧化性能。
    The results showed that Al3.21Si0.47 and a few Al2O3 were the main phase of Al-Si outer coating.
    结果表明:Al-Si合金外涂层主要成分为Al3.21Si0.47,含有少量Al2O3;
    The thickness of SiC/Al-Si multi-layer coating was about 120μm and without penetrable cracks.
    SiC/Al-Si复合涂层厚度约为120μm,无穿透性裂纹;
    The oxidation resistance of SiC/Al-Si multi-layer coating was obviously better than that of single SiC coating. The mass loss of SiC/Al-Si multi-layer coated carbon-carbon composites was less than 5%(mass fraction) after oxidation for 17h.
    SiC/Al-Si复合涂层的抗氧化性能明显优于单一SiC涂层,氧化17h后涂层试样的质量损失未超过5%。
    Composite electroless Ni-P/PTFE-Al2O3 coating was prepared by adding nano-Al2O3and PTFE into electroless Ni-P alloy baths.
    在化学镀Ni-P合金镀液中添加纳米Al2O3及PTFE制得Ni-P/PTFE-Al2O3复合镀层.
    The effects of nano-Al2O3 and PTFE on deposition coating,hardness,wear-resistance and frication-reduction of obtained coating were studied.
    研究了纳米Al2O3及PTFE的添加量对镀层硬度、磨损及减摩性能的影响.
    The results indicate that electroless Ni-P alloy coating are greatly improved in hardness,wear-resistance and frication-reduction by co-depositing nano-Al2O3 and PTFE.
    结果表明:纳米Al2O3及PTFE的加入能提高Ni-P合金镀层的硬度、耐磨及减摩性.
    The process of electroless Ni-Fe-Co-P alloy plating on iron was investigated. After sensitization and activation pretreatment,Ni-Fe-Co-P alloy coating was deposited on carbon nanofibers using this technology.
    在铁片试样上研究了化学镀Ni-Fe-Co-P合金镀层的工艺,利用此工艺在经过敏化、活化处理后的纳米碳纤维表面沉积出Ni-Fe-Co-P合金镀层。
    the deposition rate and compositions of the coatings could be controlled by controlling c(Co2+)/c(Ni2+)in bath;
    通过控制镀液中c(Co2+)/c(Ni2+)的比值,可控制沉积速率及镀层中镍、钴元素的相对含量;
    According to the means and the functions of modification, the main methods of surface modification including mechanochemical modification, oxidation modification, surface chemical modification, encapsulation modification, coating modification and deposition modification were described.
    本文中综合铝粉改性的手段及改性后铝粉的功能,介绍了铝粉表面改性常用的几种方法,包括机械化学改性、氧化改性、表面化学改性、胶囊改性、包覆改性和沉淀改性等。
    The composition and the microstructure of the coating were investigated by SEM、XRD and EDS as well.
    用SEM、XRD及EDS等手段分析了镀层的组成和结构。
    The test results show that the bond strength of nanozirconia coating with optimizing process can reach 33 MPa;
    试验结果表明,经优化工艺喷涂的涂层结合强度可达33 MPa;
    its heat-insulating effect is apparent; there existes 300~600 ℃ difference between flame and coating surface and 100~200 ℃ difference between coating surface and backside of sample.
    隔热效果明显,火焰与涂层表面以及涂层表面和试样背面随着火焰温度不同,分别具有300~600℃和100~200℃左右的温差。
    Five different chemical surroundings of boron atoms were confirmed in the BCx coating,namely,B4C,boron atoms substituted in the graphite-like structures,and mixtures of B—C bonding and B—O bonding referred to as BC2O and BCO2,B2O3,respectively.
    硼原子化学键结合状态共有 5 种,分别是:B4C 的中的 B—C键,硼原子替代固溶在类石墨结构中形成的 B—C键,BC2O 和 BCO2结构中 B—C键和 B—O键的混合态,以及 B2O3中的 B—O键。
    Deposit-dip-spin(DDS) coating method,a composite nano-powder sample preparation method for atomic force microscope(AFM) measurement is introduced.
    介绍了一种改进旋涂法——DDS涂膜法(Deposit-Dip-Spin-coating),主要用来制备纳米粉体原子力显微镜(AFM)分析样品。
 

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