| 石墨烯协同反应自生氧化铝增强铝硅基复合材料的研究 |
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| 作者姓名： | 王伟 刘璇 宋洪刚 |
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| 作者单位： | 商洛学院化学工程与现代材料学院;陕西省尾矿资源综合利用重点实验室 |
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| 基金项目： | 商洛学院科学研究项目(16SKY003);陕西省大学生创新创业训练计划项目(20172735)。 |
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| 摘 要： | 以铝、二氧化硅和石墨烯为原料,采用粉末冶金和原位反应相结合的方法制备石墨烯协同反应自生氧化铝增强Al-Si基复合材料,并对复合材料的物相、组织及性能进分析。结果表明:石墨烯及反应生成的氧化铝颗粒都较为均匀的分布在复合材料基体中起到增强作用;复合材料的致密度和硬度均在二氧化硅质量分数为25%时达到最大,分别为87.08%和77.54 HB,其硬度较未添入石墨烯的复合材料提升了10.3%.
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| 关 键 词： | 石墨烯 氧化铝 原位反应 铝基复合材料 |
Study on Graphene Synergistic Reaction Self-generated Alumina Reinforced Al-Si Matrix Composites |
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| Authors: | WANG Wei LIU Xuan SONG Hong-gang |
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| Affiliation: | (College ofChemical Engineering and Modern Materials,Shangluo University,Shangluo Shanxi 726000,China;Shaanxi Key Laboratory of Comprehensive Utilization of Tailings Resources,Shangluo Shanxi 726000,China) |
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| Abstract: | In this paper,aluminum,silicon dioxide and graphene were used as raw materials to prepare graphene co-reaction self-generated alumina reinforced Al-Si matrix composites by combination of powder metallurgy and in-situ reaction.The phase,microstructure and properties of the composites were analyzed.The results showed that the particles of graphene and alumina produced by the reaction were evenly distributed and strengthened in the composite matrix.The density and hardness of the composites material reached the maximum when the mass fraction of silica was 25%,which was 87.08%and 77.54,respectively.The hardness of the composites was 10.3%higher than that of the composites without graphene. |
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| Keywords: | graphene alumina in situ reaction aluminum matrix composite material |
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