Surface Pretreatment and Fabrication Technology of Woven Carbon Fiber Cloth Aluminium Alloy Matrix Composite
Surface Pretreatment and Fabrication Technology of Woven Carbon Fiber Cloth Aluminium Alloy Matrix Composite
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DOI：
10.4028/www.scientific.net/msf.816.3
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发表时间：
2015-04
期刊：
影响因子：
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通讯作者：
J. Zhang;S. Liu;Han Chen;Yiping Lu;Qiuling Chen;Yong Dong;Tongmin Wang;Tingju Li
中科院分区：
文献类型：
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作者：
J. Zhang;S. Liu;Han Chen;Yiping Lu;Qiuling Chen;Yong Dong;Tongmin Wang;Tingju Li
在金属基复合材料中，碳纤维主要以短纤维和单向纤维的形态分布，作为增强相，很少以织布形态对基体进行增强研究。本文对碳纤维的预处理和表面金属化进行了研究。此外，还在磁场作用下进行了无外压铸造试验。结果表明，根据差热分析和重量-时间变化曲线，在大气环境下500℃下燃烧约45min时，预处理效果最佳。同时，经表面处理后的碳纤维与基体之间的表面润湿性大大提高，同时避免了碳纤维与熔融铝合金基体之间的反应，从而实现编织碳纤维与铝合金基体之间的良好粘合。磁场的作用也提供了磁力，促进熔融基体渗透到碳纤维束中。
Carbon fiber is mainly distributed in the shape of short fibers and unidirectional fibers as the reinforcing phase in metal matrix composites, and it is seldom studied as woven-cloth shaped to reinforce the matrix. In this paper, the pretreatment and the surface metallization of the woven carbon fiber were studied. Besides, the casting experiment without external pressure was carried out under the application of magnetic field. The result shows that when burning about 45mins at 500°C in the atmospheric environment, the pretreatment can achieve the best result according to differential thermal analysis and weight-time variation curve. Meanwhile the surface wettability between the carbon fiber and the matrix is greatly improved after the surface treatment and at the same time the reaction between the carbon fiber and molten aluminium alloy matrix is necessarily avoided, and it can consequently achieve an excellent bonding between the woven carbon fiber and aluminium alloy matrix. The application of magnetic field also provides magnetic force to promote the penetration of the molten matrix into the carbon fiber bundles.