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Fabrication and Properties of dispersed carbon nanotubea??Al6061 composites

机译：分散碳纳米管-Al6061复合材料的制备与性能

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摘要

Powder metallurgy techniques have emerged as promising routes for the fabrication of carbon nanotube (CNT) reinforced metal matrix composites. In this present work has been made to investigate the mechanical properties of the fabricated Composites. Al6061 alloys as matrix and Multiwall Carbon Nanotube (MWCNT) as reinforcement (0, 0.5, 1.0 ,1.5,2 ,2.5 & 3 weight percentage) have been fabricated by powder metallurgy process. Al6061 powder (200 mesh) and multiwalled carbon nano tubes (Nanoshell.,USA) were procured from different sources available in the market. The two materials were properly mixed for different composition by using ball mill ,to mix uniformly CNT‘s with Aluminium powder. Compacting die was used to compact the powder by using 40Ton capacity hydraulic press, after compacting the powder in to solid billet. A low cost sintering furnace was designed and fabricated for current research work. Sintered billets were hot extruded using hot extrusion set up. Samples were prepared for various compositions and the samples were investigated for microstructure, using optical microscope and SEM Apparatus and also tested for strength.
机译：粉末冶金技术已经成为制造碳纳米管（CNT）增强金属基复合材料的有前途的途径。在本发明中，已经进行了研究所制造的复合材料的机械性能的工作。通过粉末冶金工艺制备了Al6061合金作为基体，多壁碳纳米管（MWCNT）作为增强剂（0、0.5、1.0、1.5、2、2.5和3重量百分比）。 Al6061粉末（200目）和多壁碳纳米管（Nanoshell。，USA）是从市场上的不同来源获得的。使用球磨机将两种材料适当混合以组成不同，以将CNT与铝粉均匀混合。在将粉末压实成固体坯料之后，使用压实模具通过40吨容量的液压机压实粉末。为当前的研究工作设计和制造了一种低成本的烧结炉。使用热挤压装置将烧结的坯料热挤压。制备用于各种组成的样品，并使用光学显微镜和SEM仪器研究样品的微观结构，并测试强度。

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