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首页> 外文期刊>Powder Metallurgy >Conventional and microwave sintering of MoSi_2 nanostructured powder: powder and parts characterisation
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Conventional and microwave sintering of MoSi_2 nanostructured powder: powder and parts characterisation

机译：MoSi_2纳米粉末的常规和微波烧结：粉末和零件表征

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In this paper, MoSi_2 nanostructured powder is characterised by X-ray diffraction, scanning electron microscopy and transmission electron microscopy. The powder parts were fabricated by press and sinter process or powder injection moulding in order to investigate the impacts of the sintering process on the microstructure of materials and their properties. Two approaches were investigated for the sintering stage: conventional and microwave sintering. The microwave approach does not necessitate as high temperature as conventional sintering and is much shorter. The sintered specimens were characterised (density, microstructure and phases) to compare the efficiency of the different sintering approaches and their ability to maintain the nanograins of the initial MoSi_2 powder. The microwave sintering resulted in smaller grain size than either press and sinter process or powder injection moulding conventional sintered parts.
机译：本文通过X射线衍射，扫描电子显微镜和透射电子显微镜对MoSi_2纳米粉末进行了表征。为了研究粉末烧结对材料微观结构及其性能的影响，采用压制和烧结或粉末注射成型的方法制备了粉末零件。对于烧结阶段，研究了两种方法：常规烧结和微波烧结。微波方法不需要像常规烧结那样高的温度，并且要短得多。对烧结后的样品进行表征（密度，微观结构和相），以比较不同烧结方法的效率及其保持初始MoSi_2粉末纳米颗粒的能力。微波烧结导致的晶粒尺寸小于压制和烧结工艺或粉末注射成型的传统烧结部件。

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