Effect of ball to powder ratio on the mechanosynthesis of Re2C and its compressibility

Effect of ball to powder ratio on the mechanosynthesis of Re2C and its compressibility
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球粉比对Re2C机械合成及其可压缩性的影响

DOI:
10.1016/j.jallcom.2019.151867
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发表时间:
2019
影响因子:
6.2
通讯作者:
E.A. Juarez-Arellano
E.A. Juarez-Arellano
中科院分区:
材料科学2区
文献类型:
--
作者:
A. Martinez-Garcia;A.K. Navarro-Mtz;C. Neun;L. Bayarjargal;W. Morgenroth;E. Lopez-Vazquez;M. Avalos-Borja;B. Winkler;E.A. Juarez-Arellano

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探讨了球粉比(BPR)对六方碳化Re(Re 2 C)的机械合成过程。用Burgios方程计算了累积能量(ΔE a c c u m)和单次撞击转移能量(ΔEb)。要获得Re 2C的完全机械合成,必须满足几个条件:Bpr>115:1,ΔE a c c u m>500kJ g,ΔE b>2.656×10−14 kJ。如果使用230:1的BPR,则反应在30分钟后完成。用高达61(2)GPA的金刚石顶压腔进行同步辐射衍射,研究了晶胞体积和晶格参数与压力的关系。二阶Birch-Murnaghan状态方程的拟合值为B0=374(3)Gpa。
The mechanosynthesis of hexagonal rhenium carbide (Re 2 C) from the elements is explored as a function of the balls to powder ratio (BPR). Burgios's equation has been used to calculate the accumulated energy (Δ E a c c u m) and the transferred energy per hit (Δ E b). To get the complete mechanosynthesis of Re 2 C several conditions have to be met: BPR> 115: 1, Δ E a c c u m> 500 k J g, and Δ E b> 2.656× 10− 14 kJ. The reaction is completed after 30 min of milling if a BPR of 230: 1 is used. The pressure dependence of the unit-cell volume and the lattice parameters have been evaluated by synchrotron radiation diffraction using a diamond anvil cell up to 61 (2) GPa. A fit of a 2nd-order Birch-Murnaghan equation of state results in a bulk modulus of B 0= 374 (3) GPa.
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发表时间: 2019-05
影响因子: 4.6
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M. G. Granados-Fitch;J. M. Quintana-Melgoza;E. Juarez-Arellano;M. Avalos-Borja
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