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首页> 外文期刊>Materials Science and Engineering >Improvement of interfacial bonding in carbon nanotube reinforced Fe-50Co composites by Ni-P coating: Effect on magnetic and mechanical properties
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Improvement of interfacial bonding in carbon nanotube reinforced Fe-50Co composites by Ni-P coating: Effect on magnetic and mechanical properties

机译：Ni-P涂层改善碳纳米管增强Fe-50Co复合材料的界面结合：对磁性和机械性能的影响

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摘要

Fe-50Co matrix composites containing 1.5 and 3 vol% of electroless Ni-P plated carbon nanotubes (CNTs) were densified using spark plasma sintering. The powder mixtures for the composites were prepared by two different routes: (a) ultrasonication only; and (b) ultrasonication followed by dry ball milling. Drying of the Ni-P plated CNTs under atmospheric conditions in the presence of ethanol promoted the nucleation and growth of graphene oxide on the coating. The ball milling route was found to be the most efficient method to disperse the coated nanotubes uniformly in the matrix. The addition of coated CNTs, which formed Taenite phase with the matrix alloy, made the composites to exhibit: (a) higher ductility, higher flexural strength, lower coercivity (H_c) and lower saturation induction (B_(sat)) compared to the monolithic material; and (b) higher ductility, higher flexural strength, higher H_c and lower B_(sat) in relation to the material with similar amount of bare CNTs.
机译：使用火花等离子体烧结，将含有1.5％和3％（体积）化学镀Ni-P的碳纳米管（CNT）的Fe-50Co基复合材料致密化。用于复合材料的粉末混合物是通过两种不同的途径制备的：（a）仅超声处理； （b）超声处理，然后进行干球磨。在乙醇存在下在大气条件下干燥镀Ni-P的CNT可以促进涂层上氧化石墨烯的形核和生长。发现球磨路线是将涂覆的纳米管均匀地分散在基质中的最有效方法。与整体合金相比，添加涂层的CNT与基体合金形成Taenite相，使复合材料表现出：（a）更高的延展性，更高的弯曲强度，更低的矫顽力（H_c）和更低的饱和感应度（B_（sat））。材料; （b）与具有相似数量的裸露CNT的材料相比，具有更高的延展性，更高的抗弯强度，更高的H_c和更低的B_（sat）。

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