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    复合材料专刊
  • 复合材料专刊
    姚雪丽, 马晓燕, 屈小红, 覃宇夏, 陈芳
    2006, 0(5): 3-6,11.
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    姚雪丽, 马晓燕, 屈小红, 覃宇夏, 陈芳. 纳米SiO2增韧增强氰酸酯制备工艺的研究[J]. 材料工程, 2006, 0(5): 3-6,11.
    YAO Xue-li, MA Xiao-yan, QU Xiao-hong, QIN Yu-xia, CHEN Fang. Preparing Process on Toughening and Strengthening Cyanate Ester with Nano-SiO2[J]. Journal of Materials Engineering, 2006, 0(5): 3-6,11.

    从纳米SiO2三种不同的分散工艺(研磨法、偶联剂表面处理法和高速均质剪切法)着手,通过原位聚合法制得SiO2/氰酸酯(CE)纳米复合材料;采用透射电镜分析(TEM)、扫描电镜分析(SEM)和热失重分析(TGA)研究了三种分散工艺对纳米SiO2的分散以及复合材料的力学性能和热性能的影响。结果表明,研磨对纳米SiO2的分散优于高速均质剪切,偶联剂表面处理分散较差;高速均质剪切对复合材料力学性能和热性能的提高程度优于研磨法,当纳米SiO2含量为1phr时,高速均质剪切所得复合材料的冲击强度和弯曲强度分别比纯CE提高35.0%和12.1%;当质量损失为5%时复合材料的热分解温度较纯CE提高23.8℃;偶联剂表面处理法则降低了复合材料的弯曲强度和热分解温度。
  • 复合材料专刊
    周同悦, 于运花, 陈伟明, 杨小平, 顾雪林, 常德友
    2006, 0(5): 7-11.
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    周同悦, 于运花, 陈伟明, 杨小平, 顾雪林, 常德友. 抽油杆用CF/VE复合材料的电化学腐蚀行为[J]. 材料工程, 2006, 0(5): 7-11.
    ZHOU Tong-yue, YU Yun-hua, CHEN Wei-ming, YANG Xiao-ping, GU Xue-lin, CHANG De-you. Electrochemical Corrosion Behavior of Carbon Fiber/Vinyl Ester Resin Composites Used for Sucker Rods[J]. Journal of Materials Engineering, 2006, 0(5): 7-11.

    通过模拟抽油杆在井下作业的腐蚀条件,研究了抽油杆用碳纤维/乙烯基酯树脂复合材料(CF/VE)在65℃3%(质量分数)的NaCl溶液中的电化学腐蚀状态,进行了与抽油杆接头合金的偶合实验,并结合湿热老化行为分析了偶合作用对于复合材料的吸湿性、静态和动态力学性能的影响。结果表明,CF/VE复合材料在极化体系中会在其表面发生阴极吸氧反应和以OH-浓度为主要影响因素的阳极反应。偶合作用对于复合材料的影响主要在于其对复合材料吸湿性的轻微促进,以及由OH-对复合材料界面的破坏作用所导致的复合材料相关性能的下降。
  • 复合材料专刊
    赵海军, 刘磊, 唐谊平, 朱建华, 胡文彬
    2006, 0(5): 12-15.
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    赵海军, 刘磊, 唐谊平, 朱建华, 胡文彬. 电铸制备铜-石墨复合材料的研究[J]. 材料工程, 2006, 0(5): 12-15.
    ZHAO Hai-jun, LIU Lei, TANG Yi-ping, ZHU Jian-hua, HU Wen-bin. Investigation on Cu-graphite Composites Prepared by Electroforming[J]. Journal of Materials Engineering, 2006, 0(5): 12-15.

    在酸性硫酸铜溶液中采用电铸技术制备了铜石墨复合材料。表面活性剂、微粒浓度、电流密度和搅拌速度等工艺条件对微粒含量具有不同的影响。非离子表面活性剂对微粒共沉积具有较好的效果;随着微粒浓度增大,微粒含量也逐渐增大,最后趋于稳定值;电流密度增大使微粒含量降低;搅拌速度增大时微粒含量存在最大值。铜石墨复合材料的硬度和摩擦系数随着微粒含量增大而减小,但是磨损量先是减小而后增大。摩擦过程中纯铜发生粘着磨损,铜石墨复合材料却表现为剥层磨损。
  • 复合材料专刊
    杨果, 潘勤彦, 潘皖江, 付绍云
    2006, 0(5): 16-20,24.
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    杨果, 潘勤彦, 潘皖江, 付绍云. 柔性胺改性剂对环氧树脂力学性能的影响[J]. 材料工程, 2006, 0(5): 16-20,24.
    YANG Guo, PAN Qin-yan, PAN Wan-jiang, FU Shao-yun. Influence of Flexible Amine Modifier on Mechanical Properties of Epoxy Resins[J]. Journal of Materials Engineering, 2006, 0(5): 16-20,24.

    以柔性胺D-230作为改性剂,用浇铸成型法制备了环氧树脂结构胶,研究了其力学性能与D-230加入量的关系,并探讨了该材料的微观断裂形貌与韧性的关系。力学测试结果显示室温断裂延伸率、室温和低温冲击韧性随D-230含量的增加而增加,表明D-230对环氧树脂产生有效的增韧作用。当D-230加入量为21%(质量分数)时,室温拉伸强度和弹性模量最大,分别为85.44MPa和3.22GPa,当继续增加D-230的含量时,二者则呈降低的趋势。对拉伸断面形貌进行扫描电子显微(SEM)分析显示,随着D-230含量的增加,断口形貌越粗糙,表明抗开裂能力增加,这与高断裂延伸率和高冲击韧性的结果一致。热分析实验结果显示,体系的玻璃化温度(Tg)随着D-230含量的增加而降低。
  • 复合材料专刊
    刘皓, 李克智, 李贺军, 卢锦花, 翟言强
    2006, 0(5): 21-24.
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    刘皓, 李克智, 李贺军, 卢锦花, 翟言强. 中间相沥青基碳/碳复合材料的组织与性能[J]. 材料工程, 2006, 0(5): 21-24.
    LIU Hao, LI Ke-zhi, LI He-jun, LU Jin-hua, ZHAI Yan-qiang. Microstructure and Mechanical Properties of Mesophase Pitch-based C/C Composites[J]. Journal of Materials Engineering, 2006, 0(5): 21-24.

    以3KPAN基碳纤维为增强体,以中间相沥青为基体前驱体,采用压力浸渍碳化工艺制备出2D中间相沥青基碳/碳复合材料。研究分析了材料的偏光组织结构、弯曲性能及弯曲断口形貌,结果表明:基体碳的组织结构随碳化压力的不同而变化,低压时以小域组织为主,高压时以广域流线型组织为主;材料的抗弯强度、密度随碳化压力的增加而增高,最高抗弯强度可达278MPa;断裂特征与材料的密度、界面结合状况有关,密度较高、界面结合适中时,弯曲断口以纤维断裂、纤维拔出为主,材料具有韧性断裂特征。
  • 复合材料专刊
    白同庆, 佟林松, 李东生
    2006, 0(5): 25-27,31.
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    白同庆, 佟林松, 李东生. MoS2对铜基金属陶瓷摩擦材料性能的影响[J]. 材料工程, 2006, 0(5): 25-27,31.
    BAI Tong-qing, TONG Lin-song, LI Dong-sheng. Effects of MoS2 on Properties of Copper-based Cermet Friction Materials[J]. Journal of Materials Engineering, 2006, 0(5): 25-27,31.

    研究了MoS2在铜基摩擦材料中的作用,结果表明,作为润滑组元加入的MoS2并非以MoS2的形式影响摩擦材料的性能。在烧结过程中MoS2发生了分解反应,分解后的S大部分生成了FeS等硫化物,对材料起润滑作用。随着MoS2含量的增加,材料的耐磨性、稳定系数逐渐提高,而硬度、摩擦系数逐渐降低。
  • 复合材料专刊
    龚俊杰, 王鑫伟
    2006, 0(5): 28-31.
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    龚俊杰, 王鑫伟. 薄弱环节对复合材料波纹梁吸能能力的影响[J]. 材料工程, 2006, 0(5): 28-31.
    GONG Jun-jie, WANG Xin-wei. Effect of Trigger Geometry on Energy Absorption of Composite Waved-beams[J]. Journal of Materials Engineering, 2006, 0(5): 28-31.

    薄弱环节设置是复合材料吸能结构的关键技术,良好的设计可以使复合材料结构产生稳定的渐进压溃,从而吸收较多的能量。基于波纹梁准静态轴向压溃实验结果,运用MSC/DYTRAN有限元软件建立了三组不同尺寸的碳纤维环氧树脂波纹梁的有限元模型,在数值模拟结果与实验结果基本吻合的基础上,分析了不同薄弱环节设置对复合材料波纹梁峰值载荷、吸能能力的影响,并进一步比较了不同薄弱环节设置的波纹梁在以6.5m/s的速度碰撞刚性地面时的能量吸能能力。
  • 复合材料专刊
    Michael Cichon, Helen Wei Li, Alex Wong, Stan Lehmann, Raymond Wong
    2006, 0(5): 32-36.
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    Michael Cichon, Helen Wei Li, Alex Wong, Stan Lehmann, Raymond Wong. Henkel Technologies and Products for China Aerospace[J]. 材料工程, 2006, 0(5): 32-36.
    Michael Cichon, Helen Wei Li, Alex Wong, Stan Lehmann, Raymond Wong. Henkel Technologies and Products for China Aerospace[J]. Journal of Materials Engineering, 2006, 0(5): 32-36.

    Epoxy structural adhesives and composites have been in use for many years for the construction of aerospace vehicles. Henkel provides many epoxy products. Many other resin systems have been evaluated and several, such as imide, phenolic and cyanate ester, have also achieved significant use. Henkel’s newly developed “Epsilon” chemistry demonstrates unique features that benefit application in aerospace structure that use adhesives and composites.
  • 复合材料专刊
    Leonhard Maier, HU Pei, Herman Seibert
    2006, 0(5): 37-40,45.
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    Leonhard Maier, HU Pei, Herman Seibert. PMI Foam Cored Sandwich Components Produced by Means of Different Manufacturing Methods[J]. 材料工程, 2006, 0(5): 37-40,45.
    Leonhard Maier, HU Pei, Herman Seibert. PMI Foam Cored Sandwich Components Produced by Means of Different Manufacturing Methods[J]. Journal of Materials Engineering, 2006, 0(5): 37-40,45.

    The paper introduced the structural applications with PMI (Polymethacrylimide) foams in sandwich components for rotor craft, launching vehicle and civil aircraft and discuss some typically used manufacturing methods, such as e.g. in-mould pressing, autoclave curing and resin infusion. The advantages of foam-cored sandwich design versus honeycomb-cored design will be discussed, focussing on manufacturing costs.
  • 复合材料专刊
    CHENG Qun-feng, XU Ya-hong, YI Xiao-su
    2006, 0(5): 41-45.
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    CHENG Qun-feng, XU Ya-hong, YI Xiao-su. Toughening of BMI Based Graphite Laminates by Ex-situ Concept[J]. 材料工程, 2006, 0(5): 41-45.
    CHENG Qun-feng, XU Ya-hong, YI Xiao-su. Toughening of BMI Based Graphite Laminates by Ex-situ Concept[J]. Journal of Materials Engineering, 2006, 0(5): 41-45.

    High-performance bismaleimdes (BMI) matrix composites reinforced by graphite fibers were prepared and toughened with a thermoplastic component (PAEK) by using the Ex-situ concept. Experimental matrix was designed for overall toughening of the base resin, periodically interleaving thermoplastic films into each plies (Ex-situ concept) and for varying the film compositions. The highest impact damage resistance characterized by compression after impact (CAI) was obtained for the laminates toughened on the Ex-situ concept, especially, when two-component cast films of a special ration of PAEK/BMI 60:40 were interleaved though the thermoplastic concentration for the overall toughening, interleaving the pure thermoplastic films and the two-component films was comparable. There were two peaks found in the DSC trace of the laminates toughened implying a phase separation process occurred. The glass transition temperature of the laminates toughened was slightly reduced due to the low-temperature PAEK. Morphological study revealed a typical granular structure just in the interplay region as a result of spinodal decomposition and coarsening process. This was in agreement of the result of DSC investigation.
  • 复合材料专刊
    YANG Bin, XIONG Tao, XIONG Jie
    2006, 0(5): 46-50.
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    YANG Bin, XIONG Tao, XIONG Jie. Statistical Tensile Strength for High Strain Rate of Aramid and UHMWPE Fibers[J]. 材料工程, 2006, 0(5): 46-50.
    YANG Bin, XIONG Tao, XIONG Jie. Statistical Tensile Strength for High Strain Rate of Aramid and UHMWPE Fibers[J]. Journal of Materials Engineering, 2006, 0(5): 46-50.

    Dynamic tensile impact properties of aramid (Technora) and UHMWPE (DC851) fiber bundles were studied at two high strain rates by means of reflecting type Split Hopkinson Bar, and stress-strain curves of fiber yarns at different strain rates were obtained. Experimental results show that the initial elastic modulus, failure strength and unstable strain of aramid fiber yarns are strain rate insensitive, whereas the initial elastic modulus and unstable strain of UHMWPE fiber yarns are strain rate sensitive. A fiber-bundle statistical constitutive equation was used to describe the tensile behavior of aramid and UHMWPE fiber bundles at high strain rates. The good consistency between the simulated results and experimental data indicates that the modified double Weibull function can represent the tensile strength distribution of aramid and UHMWPE fibers and the method of extracting Weibull parameters from fiber bundles stress-strain data is valid.
  • 复合材料专刊
    LI J Y, DAI H, LI Q, ZHONG X H, CAO X Q
    2006, 0(5): 51-56,62.
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    LI J Y, DAI H, LI Q, ZHONG X H, CAO X Q. Improvement of Fracture Toughness Lanthanum Zirconate[J]. 材料工程, 2006, 0(5): 51-56,62.
    LI J Y, DAI H, LI Q, ZHONG X H, CAO X Q. Improvement of Fracture Toughness Lanthanum Zirconate[J]. Journal of Materials Engineering, 2006, 0(5): 51-56,62.

    La2Zr2O7(LZ) is a promising thermal barrier coating material for the high temperature applications. The fracture toughness and microhardness of nanocrystalline LZ (n-LZ), microcrystalline LZ (m-LZ) and LZ-5mol%8YSZ (LZ-5-8YSZ) composite (8YSZ for zirconia stabilized by 8 mol% ytrria) were studied. The n-LZ had a thermal expansion coefficient of (9.6±0.4)×10-6K-1(200~1000℃) and fracture toughness of (1.98±0.07) MPa·m1/2 which are obviously higher than those of the m-LZ ((9.1±0.4)×10-6 K-1 and (1.40±0.23) MPa·m1/2, respectively), indicating that nanofication was an efficient way to increase the toughness and thermal expansion coefficient of LZ. The composite LZ-5-8YSZ had a higher fracture toughness ((1.88±0.30) MPa·m1/2) than LZ, which was close to that of 8YSZ densified by superhigh pressure (SHP).
  • 复合材料专刊
    ZHANG Ming, AN Xue-feng, TANG Bang-ming, YI Xiao-su
    2006, 0(5): 57-62.
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    ZHANG Ming, AN Xue-feng, TANG Bang-ming, YI Xiao-su. Study on Cure Behavior of a Model Epoxy System by Means of TTT Diagram[J]. 材料工程, 2006, 0(5): 57-62.
    ZHANG Ming, AN Xue-feng, TANG Bang-ming, YI Xiao-su. Study on Cure Behavior of a Model Epoxy System by Means of TTT Diagram[J]. Journal of Materials Engineering, 2006, 0(5): 57-62.

    Curing behavior of a model epoxies system (E-54/AG-80) with DDS as hardener was studied in this paper. Round disk compression mode DMA was executed to study the gel behaviors at different temperatures to determine the relationship between gel-time (tgel) and temperature. The cure kinetics was studied by dynamic DSC analysis. Parameters were obtained for establishing a phenomenological cure reaction model. The relationship between glass transition temperature (Tg) and cure degree (α) was also analyzed by both isothermal and dynamic DSC method based on DiBenedetto equation, which gave a mathematical description of Tg as a function of both time and temperature. Consequently, characteristic temperatures such as Tg0, gelTg and Tg∞ were determined. Finally, the Time-Temperature-Transition (TTT) diagram was designed based on the data and equations.
  • 复合材料专刊
    XIONG Tao, YANG Bin, XIONG Jie, XU Xian-jian, ZHOU Kai, MAO Ming-zhong
    2006, 0(5): 63-67,72.
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    XIONG Tao, YANG Bin, XIONG Jie, XU Xian-jian, ZHOU Kai, MAO Ming-zhong. Effect of Strain Rate on Compression Behavior of Vinyl Ester Resin Casting[J]. 材料工程, 2006, 0(5): 63-67,72.
    XIONG Tao, YANG Bin, XIONG Jie, XU Xian-jian, ZHOU Kai, MAO Ming-zhong. Effect of Strain Rate on Compression Behavior of Vinyl Ester Resin Casting[J]. Journal of Materials Engineering, 2006, 0(5): 63-67,72.

    Quasi-static and high strain rate compressive experiments on vinyl ester casting were carried out by means of MTS (Material Test System) and Hopkinson bar. The behaviors of the compressed unstable and fracture of the resin casting at different strain rates were investigated.The results indicate that the response behavior of the resin casting is controlled by different mechanisms at different strain rate, and some mechanical properties of vinyl ester casting are rate-dependent: the casting are destroyed in toughness model under strain rate 3.3×10-4~6.6×10-3/s, while the casting are destroyed in brittleness model under strain rate 950~5800/s. The yield stress, yield strain energy density are all increased with the increasing strain rates at quasi-static as well as at high strain rates. What is interesting is that the yield strain decreased with the strain rates increasing at quasi-static while increased at high strain rates. It is considered that the casting occurred forcing high elastic deformation at high strain rates. The damage of the specimens is mainly controlled by axial stress before unstable deformation, while mainly controlled by shear stress after unstable deformation, and then developed to fracture finally. This progress is rate-dependent: the development of the cracks inside the castings increased with the strain rate increasing.
  • 复合材料专刊
    SHEN Zhen, CHEN Pu-hui, YANG Sheng-chun
    2006, 0(5): 68-72.
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    SHEN Zhen, CHEN Pu-hui, YANG Sheng-chun. Preliminary Study on Evaluation System of Capability of Composites to Withstand Impact[J]. 材料工程, 2006, 0(5): 68-72.
    SHEN Zhen, CHEN Pu-hui, YANG Sheng-chun. Preliminary Study on Evaluation System of Capability of Composites to Withstand Impact[J]. Journal of Materials Engineering, 2006, 0(5): 68-72.

    This paper summarizes the authors’ experimental study on the characterization system of composite behavior to withstand impact. The content includes: (1)The dent depth is the best parameter describing the impact damage state. (2) There exists the knee point phenomenon for damage resistance behavior (i.e. the relationship between impact energy or contact force and dent depth) and damage tolerance behavior (i.e. the relationship between dent depth and compressive failure strain or stress) of composite laminates. (3) The physical meaning of the knee point phenomenon is that the failure mechanisms change of damaged composites to fiber breakage in the first front plies from matrix crack and delamination. Some suggestions on the characterization system of composite behavior to withstand impact were proposed.
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创刊于1956年,月刊

ISSN:1001-4381

   CN:11-1800/TB

 主管:中国航空发动机

          集团有限公司

 主办:中国航发北京航

          空材料研究院

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