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Characterization and Sintering Behaviors of Fe Based Nanopowders Prepared by Arc Discharge Process

机译:电弧放电过程制备的Fe基纳米粉末的表征和烧结行为

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The formation of Fe nanopowders by Plasma Arc discharge process and sintering behavior of Fe nanopowder has been investigated. The effect of processing parameters on the size and microstructure and their pressureless sintering behaviors have been analyzed. Also the addition effect of micron powder to nanopowder on the compaction and sintering was studied. The prepared Fe nanpowder showed nearly spherical shape with the average size of 100 nm. The surface oxide layer of nanopowder played an important role on the initial densification of the green compact. The hardness and sintered density of nano/micron bimodal powder was similar to those of pure nanopowder.
机译:研究了通过等离子体电弧放电工艺形成Fe纳米粉末的Fe纳米粉末的烧结行为。分析了处理参数对尺寸和微观结构的影响及其无压烧结行为。还研究了微米粉末到纳米粉末对压实和烧结的添加效果。制备的Fe nanpowder显示出几乎球形的形状,平均尺寸为100nm。纳米粉末的表面氧化物层在绿色紧凑的初始致密化上发挥了重要作用。纳米/微米双峰粉末的硬度和烧结密度与纯纳米粉末的硬度和烧结密度相似。

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