Effect of Pr3Al11 nanoparticles on crystallite growth kinetics of nanocrystalline Mg

Effect of Pr3Al11 nanoparticles on crystallite growth kinetics of nanocrystalline Mg
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Pr3Al11纳米颗粒对纳米晶镁微晶生长动力学的影响

DOI:
10.1016/j.jallcom.2019.07.047
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发表时间:
2019-10
影响因子:
6.2
通讯作者:
Zhang Q A
Zhang Q A
中科院分区:
材料科学2区
文献类型:
--
作者:
Zhou C Q;Zhang Q A

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In order to understand the effect of Pr3Al11nanoparticles on crystallite growth kinetics of nanocrystalline Mg, the crystallite growth characteristics in a Mg−Pr3Al11composite and a pure Mg sample were comparatively investigated in this work. The crystallite growth exponents of nanocrystalline Mg in the Mg−Pr3Al11composite and pure Mg were determined asn= 5 andn= 4, respectively. Meanwhile, the activation energy for crystallite growth in Mg−Pr3Al11composite was calculated to be 118.8 kJ/mol, which is higher than 97.1 kJ/mol in pure nanocrystalline Mg. Further studies reveal that the rise of crystallite growth exponent and increase of activation energy in the Mg−Pr3Al11composite are primarily attributed to the pinning effect of Pr3Al11nanoparticles at crystallite boundaries of Mg.
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DOI: 10.1016/j.jssc.2012.04.011
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DOI: --
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期刊: Metals technology
影响因子: --
作者:
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