Physical, Antioxidant and Thermal Shock Properties of Cu/Ti_2AlC Conductive Composites

来源 :Journal of Wuhan University of Technology(Materials Science | 被引量 : 0次 | 上传用户:xiaochouya87
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Cu/Ti2AlC composites were fabricated by vacuum hot-pressing technique. Phase composition was analyzed by XRD and morphology of fracture was observed by SEM. Physical performance such as density, resistivity, hardness and friction coefficient with different volume fraction of Cu/Ti2AlC composites were studied. When the content of Ti2AlC increased from 10% to 70%, the relative density reduced from 99.38% to 90.56% and the resistivity increased significantly. Hardness reached the maximum value when Ti2AlC was at 60% and friction coefficient declined with the increasing of Ti2AlC. Cu/Ti2AlC composites, showing good conductivity properties and friction performance. Oxidation resistance enhanced obviously with the content of Ti2AlC increasing. Cu-60%Ti2AlC sample possessed optimum thermal shock resistance, and no cracking was found at 600 ℃ cycled for 10 times and 900 ℃ cycled for 1 time. Physical performance such as density, resistivity, hardness and friction coefficient with different volume fraction of Cu / Ti2AlC composites were When the content of Ti2AlC increased from 10% to 70%, the relative density reduced from 99.38% to 90.56% and the resistivity increased significantly. Hardness reached the maximum value when Ti2AlC was at 60% and friction coefficient declined with the increasing of Ti2AlC. Cu / Ti2AlC composites, showing good conductivity properties and friction performance. Oxidation resistance significantly increased with content of Ti2AlC increasing. Cu-60% Ti2AlC sample possessed optimum thermal shock resistance, and no cracking was found at 600 ° C cycled for 10 times and 900 ℃ cycled for 1 time.
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