微波烧结碳纳米管增强铜基复合材料的显微组织与力学性能
发布时间:2018-03-09 00:29
本文选题:粉末冶金 切入点:碳纳米管 出处:《粉末冶金材料科学与工程》2017年04期 论文类型:期刊论文
【摘要】:通过微波烧结与轧制相结合,制备碳纳米管(carbon nanotube,CNTs)增强铜基复合材料(CNTs/Cu),对该材料的显微组织、致密度、硬度和抗拉强度等进行分析与测试,并通过正交试验优化工艺参数。结果表明:CNTs的最佳含量(质量分数)为2.0%,在烧结温度为1 000℃,保温时间为30 min条件下制备的2.0%CNTs/Cu复合材料,CNTs均匀分散在Cu基体中,CNTs与Cu基体结合良好,材料致密度达到98.09%,维氏硬度(HV)为372,屈服强度和抗拉强度分别达到234 MPa和344 MPa,比微波烧结纯铜分别提高18%和24%左右。
[Abstract]:Carbon nanocarbon nanotubes (CNTs) reinforced copper matrix composites were prepared by microwave sintering and rolling. The microstructure, densification, hardness and tensile strength of the composites were analyzed and tested. The results show that the optimum content (mass fraction) of 1: CNTs is 2.0 and the sintering temperature is 1 000 鈩,
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