共查询到20条相似文献,搜索用时 46 毫秒
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金属基复合材料理论模型研究进展 总被引:2,自引:1,他引:2
综述了金属基复合材料的弹性,弹塑性,开裂,断裂,热膨胀和制备工艺等方面的理论模型研究进展,随着理论模型研究的发展,将出现金属基复合材料的材料设施制备一体化的趋势。 相似文献
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金属基复合材料的研究进展 总被引:3,自引:0,他引:3
本文简要介绍了金属基复合材料概况及北京航空材料研究所20年来在这方面的研究情况,特别是在研制硼纤维、硼/铝及碳化硅/铝复合材料中所取得的成果。 相似文献
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铸造法制金属基复合材料研究进展 总被引:17,自引:0,他引:17
本文综合评述了制造金属基复合材料的各种铸造方法,提出需要进一步研究润湿、凝固,界面反应等问题,并建议在我国加速开展铸造复合材料的研究。 相似文献
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本文综述了金属基混杂复合材料的研究进展。着重介绍了各种金属基混杂复合材料的发展背景、组成、工艺方法和性能特点,并对其发展前景作了分析,认为纤维与颗粒混杂增强的金属基复合材料和树脂基复合材料与铝合金的超混杂复合材料是最具活力的品种。 相似文献
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Y. Nishida 《Advanced Engineering Materials》2001,3(5):315-317
Fundamental ideas of recycling of metal matrix composites are introduced. Two fundamentally different ways for separating reinforcements from the matrix metal exist. One is the mechanical method and another is the chemical method. In this report the separation of fibers in an aluminum matrix composite is demonstrated by a chemical method. 相似文献
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N. R. Bandyopadhyay S. Ghosh A. Basumallick 《Materials and Manufacturing Processes》2007,22(6):679-682
Metal matrix composite (MMC) materials have attracted considerable attention due to their ability to offer unusual combinations of stiffness, strength to weight ratio, high temperature performance, and hardness. Extensive research work in this area has led to the development of novel in situ processing techniques that are now being used to new generation metal matrix composites that can be used in wide ranging applications in diverse fields. The development and processing of these new generation metal matrix composites are highlighted in this report. 相似文献
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Future Trends and Recent Developments of Fabrication Technology for Advanced Metal Matrix Composites
Future trends and recent developments of reinforcing materials and fabrication processing for advanced metal matrix composites are discussed in this paper. A national R & D project is currently underway to improve the oxidation resistance and heat resistance to 1773 K of continuous ceramics Si-Ti-C-O fibers (Tyranno fiber) and SiC(PC)) fibers (Nicalon fiber) by electron beam irradiation curing techniques. Meanwhile, over the past seven years from 1981, a large national R & D project on MMC has been performed in Japan. Overviews of both projects are reported including the major fabrication methods (squeeze casting, plasma spraying and powder metallurgy) of advanced MMCs. The status and future trends of these methods are considered. 相似文献
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This paper investigates the feasibility of dry erosion by blasting alumina erodent on aluminum composite reinforced with silicon carbide particles. The erosion rate is dependent on the erodent velocity and the matrix hardness. Two different material removal mechanisms are observed due to different attack angles. Blasting between 30-60° is recommended for optimum erosion rate and surface quality. Material removal mechanisms and surface quality of blasted and ground composites are compared. Although its erosion rate is two orders of magnitude less than that for rough grinding, dry blasting is suitable as a finishing process of composites with irregular contours. 相似文献
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Tapan Kumar Pal 《Materials and Manufacturing Processes》2005,20(4):717-726
Aluminium metal matrix composites (AlMMCs) offer several advantages relative to monolithic aluminium alloys such as high stiffness, strength, wear resistance, low thermal expansion coefficient, etc. However, despite considerable improvements in developing AlMMCs, the lack of reliable joining methods restrict their greater application. Fusion welding of AlMMCs has not proved successful because high temperature nature of the process normally causes unfavorable reactions between the reinforcement and the matrix, leading to the formation of a variety of defects. On the other hand, solid-state welding and diffusion bonding may not be suitable due to the presence of chemically stable surface layer of aluminium oxide, which, being insoluble in aluminium, inhibits metal-to-metal contact during diffusion bonding. Furthermore, diffusion bonding requires a very smooth and clean contact surface, which is difficult to obtain in industrial applications. As an alternative, transient liquid phase (TLP) diffusion bonding, which operates at a lower temperature, can be used to circumvent the problems associated with the oxide layer. The formation of liquid phase (eutectic) can assist the disruption of the oxide layer and promote metallic contact. The composite material used in the present study consisted of 6061 alloy containing 15 volume % of SiC particulates of 23 μm diameter. TLP bonding was carried out at 560 ˚C in argon atmosphere using copper as an interlayer with different pressures and holding times. TLP-bonded AlMMCs were characterized by optical and scanning electron microscopy, microhardness survey, and shear tests. The results indicated that adequate bond strength could be achieved with suitable bonding parameters such as holding time and initial pressure. 相似文献