SiC_p表面处理对SiC_p/6061Al复合材料性能的影响

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英文篇名：Effect of Surface Treatment of Si C Particles on Properties of SiC_p/6061Al Composites 作者：马文丽 ; 阎峰云 ; 魏富中 ; 杨飞 英文作者：MA Wenli;YAN Fengyun;WEI Fuzhong;YANG Fei;State Key Laboratory of Advanced Processing and Recycling of Non-ferrous Metals, Lanzhou University of Technology;Key Laboratory of Non-Ferrous Metal Alloys and Processing, Ministry of Education, Lanzhou University of Technology; 关键词：SiC颗粒 ; SiC_p/6061Al复合材料 ; 表面处理 ; 性能 英文关键词：SiC particle;;SiC_p/6061Al composites;;surface treatment;;properties 中文刊名：SJGY 英文刊名：Hot Working Technology 机构：兰州理工大学省部共建有色金属先进加工与再利用国家重点实验室;兰州理工大学有色金属合金及加工教育部重点实验室; 出版日期：2019-07-04 17:18 出版单位：热加工工艺 年：2019 期：v.48;No.516 基金：国家自然科学基金项目(51564035);; 甘肃省重大科技专项项目(ZX1406) 语种：中文; 页：SJGY201914018 页数：5 CN：14 ISSN：61-1133/TG 分类号：78-81+86

摘要

为提高SiC_p/6061Al复合材料的性能,采用不同方法对SiC颗粒进行了表面处理,并通过直热烧结法制备了不同SiC表面改性状态的SiC_p/6061Al复合材料。研究表明:经过酸洗+高温氧化处理后SiC_p表面生成了一层Si O2膜,SiC_p的棱角发生钝化,颗粒形貌发生改变;经过碱洗+K_2ZrF_6处理后,SiC_p表面得到粗化,并在SiC_p表面析出K_2ZrF_6。对SiC_p进行不同表面处理后,制得的SiC_p/6061Al复合材料的性能都得到很大改善,而且碱洗+K_2ZrF_6处理这种表面处理方法对复合材料性能的改善效果最佳。
        In order to improve the properties of the SiC_p/6061Al composites, surface treatment of SiC particles was carried out by using different methods, and the SiC_p/6061Al composites under different surface modified states were prepared by direct thermal sintering method. The results show that, a layer of SiO_2 film is formed on the surface of SiC_p, the edges of SiC_pare passivated and the morphology of the particles is changed after pickling and high temperature oxidation. The surface of SiC_pis roughened and K_2ZrF_6 is precipitated on the surface of SiC_pafter alkaline washing and K_2ZrF_6 treatment. The surface treatment method with alkaline washing and K_2ZrF_6 treatment has the best effect on the improvement of the properties of composites.

引文

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