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首页> 外文期刊>Materials Science and Engineering >Multilayered Al/Ni energetic structural materials with high energy density and mechanical properties prepared by a facile approach of electrodeposition and hot pressing
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Multilayered Al/Ni energetic structural materials with high energy density and mechanical properties prepared by a facile approach of electrodeposition and hot pressing

机译：通过电沉积和热压的简便方法制备的具有高能量密度和机械性能的多层Al / Ni高能结构材料

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摘要

With an aim to fabricate multilayered Al/Ni energetic structural materials integrating high energy density and mechanical properties, a facile approach of electrodeposition and hot pressing was employed in this study. The effect of hot pressing time on exothermic reactions and mechanical properties has been systematically investigated. It was found that the exothermic heat of Al/Ni energetic structural materials decreased from 1003J/g to 782J/g, while the hot pressing process increased from 0.5 h to 4 h, and the initial exothermic reaction temperature declined simultaneously. Because of the increasing crystallite sizes of Ni and Al layers at hot pressing time of 1 h, Al/Ni multilayered materials acquired the maximum elongation, the minimum tensile strength and the lowest compressive strength. As the hot pressing process exceeded 2 h, the elongation deteriorated sharply and the compressive strength aggrandized significantly owing to the formation of the hard brittle Al3Ni phases in Al/Ni interfaces.
机译：为了制造具有高能量密度和机械性能的多层Al / Ni高能结构材料，本研究采用了一种简便的电沉积和热压方法。已经系统地研究了热压时间对放热反应和机械性能的影响。发现Al / Ni高能结构材料的放热从1003J / g降低到782J / g，而热压过程从0.5h升高到4h，初始放热反应温度同时降低。由于在1h的热压时间内Ni和Al层的微晶尺寸增加，Al / Ni多层材料获得了最大的伸长率，最小的拉伸强度和最低的抗压强度。当热压过程超过2 h时，由于在Al / Ni界面形成了坚硬的脆性Al3Ni相，伸长率急剧下降，抗压强度显着提高。

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  • 来源
    《Materials Science and Engineering》 |2019年第29期|23-31|共9页
  • 作者

    Wang Mingzhi; Qiu Liangsheng; Zhao Xingjian; Li Yuanzhou; Rao Tianheng; He Shi; Qin Liang; Tao Jie;

  • 作者单位

    Nanjing Univ Aeronaut & Astronaut, Coll Mat Sci & Technol, Nanjing 210016, Jiangsu, Peoples R China;

    Nanjing Univ Aeronaut & Astronaut, Coll Mat Sci & Technol, Nanjing 210016, Jiangsu, Peoples R China;

    Nanjing Univ Aeronaut & Astronaut, Coll Mat Sci & Technol, Nanjing 210016, Jiangsu, Peoples R China;

    Nanjing Univ Aeronaut & Astronaut, Coll Mat Sci & Technol, Nanjing 210016, Jiangsu, Peoples R China;

    Nanjing Univ Aeronaut & Astronaut, Coll Mat Sci & Technol, Nanjing 210016, Jiangsu, Peoples R China;

    Nanjing Univ Aeronaut & Astronaut, Coll Mat Sci & Technol, Nanjing 210016, Jiangsu, Peoples R China;

    Nanjing Univ Aeronaut & Astronaut, Coll Mat Sci & Technol, Nanjing 210016, Jiangsu, Peoples R China|Jiangsu Univ Sci & Technol, Sch Met & Mat Engn, Zhangjiagang 215600, Peoples R China;

    Nanjing Univ Aeronaut & Astronaut, Coll Mat Sci & Technol, Nanjing 210016, Jiangsu, Peoples R China;

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  • 正文语种 eng
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  • 关键词

    Energetic structural materials; Al/Ni multilayer composites; Electrodeposition; Hot pressing; Mechanical properties;

    机译：高能结构材料;铝/镍多层复合材料;电沉积;热压;力学性能;

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