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Hydriding properties of a mechanically milled Mg-50 wt. percent ZrFe_(1.4)Cr_(0.6)

机译:机械研磨的Mg-50 wt。百分比ZrFe_(1.4)Cr_(0.6)

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摘要

The ball-milling method was used to produce Mg-5O wt. percent ZrFe_(1.4)Cr_(0.6) composite. The thermodynamic, kinetic, and cycling properties, as well as the resistance to oxidation were examined. This composite possesses excellent kinetic properties, even at moderate temperature. Scanning electron microscopy, energy-dispersive spectrum, transmission electron microscopy and X-ray diffraction were used to characterize the composite before and after hydriding. The fine ZrFe_(1.4)Cr_(0.6) particles covering Mg particles acting as a "catalytic film", a significant amount of imperfections and some alloy powder in the Mg matrix introduced by ball milling all contributed to the enhanced absorption/desorption rate.
机译:球磨法用于生产Mg-5O wt。 ZrFe_(1.4)Cr_(0.6)复合材料的百分比。检查了热力学,动力学和循环特性以及抗氧化性。该复合材料即使在中等温度下也具有出色的动力学性能。使用扫描电子显微镜,能量色散谱,透射电子显微镜和X射线衍射表征复合材料的氢化前后。 ZrFe_(1.4)Cr_(0.6)细颗粒覆盖了充当“催化膜”的Mg颗粒,大量的缺陷以及通过球磨引入的Mg基质中的某些合金粉末,均有助于提高吸收/解吸速率。

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