金属基复合材料

《纤维复合材料》系复合材料领域全国专业性刊物。从创刊始,主要以树脂基纤维复合材料为专业报导范畴,刊登围绕热固及热塑性树脂基的纤维复合材料及其制品的原材料、工艺、设计、性能。测试与加工诸方面的研究论文、综述文章等。近年来,树脂基复合材料的研究越来越深入,技术上日趋成熟;同时,金属基、陶瓷基复合材料引起了人们的极大重视,主要的工业化国家都相应投入了大量研究力量,发展很快,国内也在开展这方面工作。为促进我国纤维复合材料的发展,《纤》刊特此由原来的办刊范围扩充到含金属基和陶瓷基等全概念纤维复合材料,并邀请哈尔滨工业大学姚忠凯教授担任本刊编委。姚教授从事金属基复合材料研究和教学多年,造诣很深。本期首篇就向读者介绍此专题的综述文章。     

碳纤维增强热塑性树脂基复合材料的研究现状

综述了国内碳纤维增强聚酰胺（PA6）、聚醚砜（PES）、聚碳酸酯（PC）、聚苯硫醚（PPS）、聚醚砜酮（PPESK）,聚醚醚酮（PEEK）、热塑性聚酰亚胺（PI）等热塑性树脂基复合材料研究现状,对比了热固性树脂基复合材料与热塑性树脂基复合材料性能及成型工艺方面的差异,并对碳纤维增强热塑性树脂基复合材料的成型方法,碳纤维...     

碳纤维增强镍基复合材料及其制备方法

本发明公开了一种碳纤维增强镍基复合材料及其制备方法,涉及金属基复合材料。现有技术制备的金属基复合材料不适用于在高温下使用的像汽轮机类零件。本发明的复合材料组分与体积分数为:碳纤维30%～35%,铜6%～8%,镍     

复合材料连接技术研究现状

复合材料的连接包括自身的连接及其与金属之间的连接,其连接工艺比金属材料之间的连接复杂.文章对树脂基、金属基及陶瓷基复合材料的连接的研究现状进行了介绍,并对其发展前景进行了展望,指出连接工艺参数的的优化与探究及新的连接方式的发展是其今后研究和发展的方向.     

TiAl基陶瓷复合材料的研究现状

TiAl金属问化合物经过十几年的研究,以其低密度、高模量和优异的高温强度、抗蠕变、抗氧化和阻燃性能而被公认为最具有发展潜力的高温结构材料.但由于其本身所固有的较低室温塑性和韧性,限制了其实际应用.TiAl基复合材料在保持TiAl金属间化合物诸多优良性能的同时,通过引入不同的陶瓷增强体,进一步提高了材料的高温强度、弹性模量、蠕变性能.本文对各种TiAl基陶瓷复合材料的主要研究现状进行了综述,重点阐述了不同TiAl基陶瓷复合材料的制备工艺和性能特点.     

阻尼复合材料发展状况

本文简要阐述了阻尼复合材料的阻尼机理,分别介绍了树脂基阻尼复合材料、金属基阻尼复合材料、橡胶阻尼复合材料、树脂—金属基阻尼复合材料、压电导电新型阻尼复合材料,以及几种阻尼复合材料的研究发展状况。     

秸秆纤维增强水泥基复合材料研究现状

阐述了国内外秸秆纤维水泥基增强复合材料的研究现状,从生产技术、制备工艺、配合比设计等方面出发,重点介绍了各种秸秆纤维材料对水泥基增强复合材料性能的影响。秸秆纤维水泥基复合材料原料丰富,绿色环保,具备优良的保温隔热、抗冲击能力以及社会经济效益。研究不同秸秆纤维的性能、寻求秸秆纤维水泥基增强复合材料的可持续发展道路具有重要意义。     

金属基碳纤维复合材料及其制造方法

本发明提供一种金属基碳纤维复合材料,其使用通常所使用的廉价的材料,利用比用于熔液法更少的能量就可制造,具有宽范围的尺寸和形状(特别是大面积),导热性优异且重量轻。     

金属基复合材料的研究进展

概述了金属基复合材料的发展历史和制造方法,着重介绍了不同种类金属基复合材料的研究现状和应用前景,指出了金属基复合材料研究过程中存在的问题和今后发展的方向。     

《新材料产业“十二五”发展规划》发展重点之高性能复合材料

高性能复合材料作为《新材料产业"十二五"发展规划》(以下简称规划)六大发展重点之一,主要包括树脂基复合材料、碳/碳复合材料、陶瓷基复合材料和金属基复合材料,具体规划内容如下:一、树脂基复合材料以低成本、高比强、高比模和高稳定性为目标,攻克树脂基复合材料的原料制备、工业化生产及配套装备等共性关键问题。加快发展碳纤维等高性能增强纤维,提高树脂性能,     

装甲防护材料的新葩——陶瓷-金属功能梯度复合材料

本文重点说明了在陶瓷增强的金属基复合材料的基础上，发展起来的陶瓷增强颗粒连续分布的陶瓷-金属功能梯度复合材料用作防护装甲的优点，介绍了陶瓷-金属功能梯度复合装甲材料的研究现状，并对其未来发展做了阐述。     

Elasto-plastic deformation within diamond reinforced metals for thermal management

Diamond reinforced metals are being developed for use as highly sophisticated heat spreading material in power electronics or satellite laser optics. These particle reinforced composites combine the excellent thermal properties of diamond with a metal matrix, which enables shaping and joining onto the components. The mismatch in thermal expansion and Young's moduli of matrix metal and diamond reinforcement is responsible for high micro stresses under operational conditions of thermal cycling. These stresses may lead to interface delamination and/or matrix damage degrading the initially good thermal properties. Therefore, the interface bonding strength and the deformability of the matrix determine the quality of such metal matrix composites. Aluminum is favored as matrix metal due to its high ductility and carbide forming ability on diamond surfaces, which significantly improves the interface bonding strength. Silver offers high thermal conductivity and alloying with silicon produces reactivity with diamond, giving strong bonding strength. The tensile behavior of both composites was investigated by non-destructive in-situ neutron diffraction and acoustic emission (AE) measurements. Post mortem scanning electron microscopy reveal the bonding quality of the composites correlated to the reinforcement architecture and the plasticity of the matrices. Conclusions on the elasto-plastic deformation behavior of the investigated composites for thermal management application are drawn.     

聚合物/导热金属复合材料的研究进展

综述了聚合物/金属粒子导热复合材料的最新研究进展,重点探讨了金属粒子的种类、形状及大小、用量、加工方式及核壳结构等对复合材料热导率的调控及影响机理。在低填料用量时采用特殊加工手段在基体内构筑有利于声子传递的连续导热粒子通道,可得到优良综合性能的高导热聚合物复合材料;适应于可穿戴电子及柔性电子器件散热的液体合金/弹性聚合物在大尺度形变下具有良好的导热能力,是导热聚合物未来发展的重要方向。     

粉末冶金法和金属熔渗法制备金属间化合物/陶瓷复合材料的研究现状和发展趋势及其应用

金属间化合物/陶瓷复合材料由于具有很多优秀的性能而被广泛应用在工程领域中,本文主要介绍金属间化合物/陶瓷复合材料的制备方法是粉末冶金法和金属熔渗法,主要包括粉末冶金法,自蔓延高温合成法,金属熔体熔融渗透法,原位合成法。其中粉末冶金法又包括热压烧结工艺,常压烧结工艺,放电等离子烧结工艺,热等静压烧结工艺,热压反应烧结工艺等。并对这些制备技术的原理和发展现状进行评述,并对这些制备方法在研究和生产中的应用进行介绍,并对金属间化合物/陶瓷复合材料的研究现状和发展趋势进行评述。并对金属间化合物/陶瓷复合材料制备技术的研究发展方向进行了展望。     

Morphological and Mechanical Properties of Poly (Vinyl Alcohol) Doped with Inorganic Fillers

A number of polymer composite films using polyvinyl alcohol (PVA) as the preorganized polymer matrix were synthesized embedding different metal salts of transition elements like copper, cobalt, nickel, iron, cadmium, and zinc by a biomimetic route. The metal salts present in composites were reduced in situ to metallic form. The composites were characterized by FTIR, SEM, and EDAX. The SEM analysis confirmed the presence of nano-sized metal particles uniformly distributed in the polymer matrix. Mechanical properties were measured for various composite and PVA films. Significant improvement in some of the mechanical properties of polymer composites was realized in comparison with PVA.     

Investigations on the Effect of Tungsten Carbide and Graphite Reinforcements during Spark Erosion Machining of Aluminium Alloy (AA 5052) Hybrid Composite

Silicon - Reinforcements introduced to metal matrix composites are known for their inherent properties like corrosion resistance, wear resistance and machinability. This study deals with the...     

Experimental Investigations on Microstructure,Mechanical Behavior and Tribological analysis of AA5154/SiC Composites by Stir Casting

Silicon - Aluminum metal matrix composites (MMCs) exhibit promising mechanical properties that are potential materials for the aeronautical and automotive industries. In this study,...     

Fatgiue behavior of metal matrix nanocomposites

Light-weight high-strength composites (particularly with aluminum and magnesium base alloys) have principal applications in a wide variety of fields ranging from automotive and aerospace structures to medical and energy applications wherein the materials undergo both static and dynamic (fatigue) loading conditions. Conventional metal matrix composites (MMCs), i.e. those filled by micro-sized reinforcements, have usually poor ductility and insufficient mechanical performance made them, therefore, unreliable to be used in some critical applications. Instead, those composites strengthened by nano-sized reinforcing agents, namely metal matrix nano-composites (MMNCs), have newly been developed in order to boost the mechanical properties. The current paper aims to study the fatigue behavior of the MMCs with a particular attention on recent investigations made on MMNCs. It is believed that the materials selection, microstructural features, manufacturing and processing parameters, etc. have a dominant influence on the fatigue response of MMNCs.     

An analysis of the factors affecting strengthening in carbon nanotube reinforced aluminum composites

Tensile strength data of Al/CNT composites from the literature is analyzed to understand the effects of CNT dispersion, processing technique, degree of deformation and CNT–matrix interface on the elastic modulus, strength and toughness of composites. Strengthening can be divided in three regimes which show decreasing strengthening effect with an increasing CNT content. The strengthening is highest for CNT content less than 2 vol.%. The applicability of the micromechanics models in predicting the strength and elastic modulus of CNT reinforced metal matrix composites is also analyzed. The rule of mixtures is effective in predicting the elastic modulus of the Al/CNT composites for low CNT content (<2 vol.%) whereas Halpin–Tsai and combined Voigt–Reuss models are better at intermediate CNT content (2–5 vol.%). Effect of degree of deformation such as extrusion ratio during processing on the load transfer to CNT and resulting strengthening is also discussed. Tensile data on Cu/CNT and Mg/CNT composites is compared with Al/CNT to show that strengthening is not effective when there is no chemical interaction between metal matrix and CNT. The analysis presented here would be very helpful in the future design of high strength CNT/metal matrix composites.