Effect of Raw Material Particle Size on Compression Performance and Energy Release Characteristics of Ni/Al Energetic Structural Material
摘 要
分别将粒径5 μm镍粉与45~75 μm铝粉(1#)、0.2 μm镍粉与45~75 μm铝粉(2#)、0.2 μm镍粉与0.5 μm铝粉(3#)按物质的量比为1:1混合,通过真空热压制备Ni/Al含能结构材料试样,研究了粉末粒径对试样压缩性能和能量释放特性的影响。结果表明:3种试样在镍/铝界面处均生成了一层Al3Ni扩散层;1#试样中镍颗粒均匀分布在连续的铝基体中,压缩性能较好;2#试样中镍颗粒发生团聚,相对密度最小,抗压强度最低;3#试样中镍相为连续基体,致密性最好,抗压强度最高,但生成的Al3Ni最多;随着粉末粒径减小,3种试样放热反应能量密度均提高,最高达1 147.8 J·g-1,反应活化能降低,能量释放效率提高,3#试样的能量释放特性最佳。
Abstract
Ni and Al powders with particle size of 5 μm and 45—75 μm (1#), 0.2 μm and 45—75 μm (2#), 0.2 μm and 0.5 μm (3#), respectively, and with molar ratio of 1:1 were mixed, and then Ni/Al energetic structural material samples were prepared by vacuum hot-pressing. The effect of powder particle size on the compression performance and energy release characteristics of the samples was studied. The results show that the three samples all had a Al3Ni diffusion layer formed at the Ni/Al interface. In 1# sample, the Ni particles uniformly distributed in the continuous Al matrix, and the compression performance was relatively good. In 2# sample, the Ni particles agglomerated, and the relative density and compressive strength were the lowest. In 3# sample, the Ni phase was continuous matrix, and the densification and compressive strength were the highest, but the most Al3Ni was formed. As the particle size of the powders decreased, the exothermic reaction energy density of the three samples increased, up to 1 147.8 J·g-1, the reaction activation energy was reduced, and the energy release efficiency was improved. The energy release characteristics of 3# sample were the best.
中图分类号 TB331 DOI 10.11973/jxgccl202201002
所属栏目 试验研究
基金项目
收稿日期 2020/12/7
修改稿日期 2021/11/29
网络出版日期
作者单位点击查看
备注丁青云(1995-),女,江苏南京人,硕士
引用该论文: DING Qingyun,MA Dan,ZHAO Hongbao,MA Chaoqun,LUO Xinyi. Effect of Raw Material Particle Size on Compression Performance and Energy Release Characteristics of Ni/Al Energetic Structural Material[J]. Materials for mechancial engineering, 2022, 46(1): 7~13
丁青云,马丹,赵洪宝,马超群,骆心怡. 原料粒径对Ni/Al含能结构材料压缩性能及能量释放特性的影响[J]. 机械工程材料, 2022, 46(1): 7~13
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【6】李东乐,朱朋,付帅,等.Al/Ni和Al/Ti纳米多层薄膜制备与表征[J].含能材料,2013,21(6):749-753. LI D L,ZHU P,FU S,et al.Fabrication and characterization of Al/Ni and Al/Ti multilayer nanofilms[J].Chinese Journal of Energetic Materials,2013,21(6):749-753.
【7】NORO J,RAMOS A S,VIEIRA M T.Intermetallic phase formation in nanometric Ni/Al multilayer thin films[J].Intermetallics,2008,16(9):1061-1065.
【8】XU G H,ZHANG K F,HUANG Z Q.The synthesis and characterization of ultrafine grain NiAl intermetallic[J].Advanced Powder Technology,2012,23(3):366-371.
【9】BACCIOCHINI A,BOURDON-LAFLEUR S,POUPART C,et al.Ni-Al nanoscale energetic materials:phenomena involved during the manufacturing of bulk samples by cold spray[J].Journal of Thermal Spray Technology,2014,23(7):1142-1148.
【10】MANUKYAN K V,MASON B A,GROVEN L J,et al.Tailored reactivity of Ni+Al nanocomposites:Microstructural correlations[J].The Journal of Physical Chemistry C,2012,116(39):21027-21038.
【11】HERBOLD E B,JORDAN J L,THADHANI N N.Effects of processing and powder size on microstructure and reactivity in arrested reactive milled Al + Ni[J].Acta Materialia,2011,59(17):6717-6728.
【12】LIAO S,LUO X Y,TAO J,et al.Microstructure and reaction properties of Ni/Al micro-nano composites produced by accumulative roll bonding process[J].Materials Research Express,2019,6(9):096503.
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【14】WEI C T,VITALI E,JIANG F,et al.Quasi-static and dynamic response of explosively consolidated metal-aluminum powder mixtures[J].Acta Materialia,2012,60(3):1418-1432.
【15】XIONG W,ZHANG X F,WU Y,et al.Influence of additives on microstructures,mechanical properties and shock-induced reaction characteristics of Al/Ni composites[J].Journal of Alloys and Compounds,2015,648:540-549.
【16】王吉军,祁明.升温速率选择对DSC实验和活化能计算的影响[J].煤炭与化工,2020,43(3):120-122. WANG J J,QI M.Effect of heating rate selection on DSC experiment and calculation of activation energy[J].Coal and Chemical Industry,2020,43(3):120-122.
【17】胡荣祖,高江旭,赵凤起,等.从恒速升温速率下的DSC曲线峰温计算含能材料放热分解反应动力学参数的理论和数值方法[J].含能材料,2009,17(6):643-649. HU R Z,GAO H X,ZHAO F Q,et al.Theory and numerical method of calculating the kinetic parameters of exothermic decomposition reaction of energetic materials from peak temperature of DSC curves at constant heating rates[J].Chinese Journal of Energetic Materials,2009,17(6):643-649.
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