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首页> 外文期刊>Порошковая Металлургия >STRUCTURAL AND MAGNETIC PROPERTIES OF Fe-Co/Al_2O_3 NANOCOMPOSITE POWDER PRODUCED BY MECHANICAL ALLOYING
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STRUCTURAL AND MAGNETIC PROPERTIES OF Fe-Co/Al_2O_3 NANOCOMPOSITE POWDER PRODUCED BY MECHANICAL ALLOYING

机译：机械合金化生产的Fe-Co / Al_2O_3纳米复合材料粉末的结构和磁性性能

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摘要

The effect of milling time and addition of elements on the microstructure, magnetic and mechanical properties of the Fe-xCo (x = 0, 5, 10, and 20 wt.%) matrix nanocomposite reinforced with 40 wt.% Al_2O_3 during mechanical alloying is examined. Fe-Al_2O_3 and Fe-Co-Al_2O_3 alloys are milled for 5, 15, 20, 30 and 20 h, respectively. The balance between the welding and fracturing and a steady-state situation is found out in the Fe-Co-40 wt. % Al_2O_3 nanocomposite after 20 h, due to the Co introduction into the Fe matrix, but not in the Fe-Al_2O_3 nanocomposite. After 30 h of milling, the average crystallite size was 5 nm in the Fe matrix. The lattice strain increased to -0.64% in the Fe matrix after ≤30 h of milling and in the binary Fe-20 wt. % Co matrix after 20 h of milling; the average crystallite size was 3 nm. The lattice strain increased to -0.56% for the Fe-20 wt.% Co matrix after ≤20 h of milling. The coercive field (H_c increased from 6.407 to 82.027 Oe, while the saturation magnetization (MJ decreased from 20.732 to 15.181 emu/g in the Fe matrix during milling. The H_c and Ms are maximum for the binary matrix (20 and 10% Co, respectively).
机译：铣削时间和加入元素对Fe-XCO（x = 0,5,10和20重量％）的微观结构，磁性和力学性能的影响，在机械合金化期间加强了40重量％的Al_2O_3的基质纳米复合材料检查。 Fe-Al_2O_3和Fe-Co-Al_2O_3合金分别用于5,15,20,30和20小时。在Fe-Co-40wt中发现焊接和压裂之间的平衡和稳态情况。 20小时后％Al_2O_3纳米复合材料，由于CO引入Fe基质，但不在Fe-Al_2O_3纳米复合材料中。在30小时后研磨后，Fe基质的平均微晶尺寸为5nm。在碾磨≤30小时和二元Fe-20重量中，晶格菌株在Fe基质中增加到-0.64％。 20小时后％CO矩阵;平均微晶尺寸为3nm。对于Fe-20重量％的晶格菌株升高至-0.56％。铣削≤20小时后％CO基质。矫顽磁场（H_C从6.407增加到82.027 OE，而饱和磁化强度（MJ在铣削期间在FE矩阵中的20.732至15.181 emu / g。二进制矩阵的H_C和MS最大限度地（20和10％CO）。分别）。

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