高频感应加热法制备FeNi超微粉及表征

THE PREPARATION AND CHARACTERISTICS OF Fe-Ni ULTRA FINE POWDER BY HIGH FREQUENCY INDUCTION HEATING

介绍高频感应加热法制备ＦｅＮｉ合金超微粉工艺，讨论超微粒子形成机理．用电子显微镜及ｘ射线小角散射检测了粒子的形貌、粒径分布及晶格参数．观测到微粒的结构、成分与块材基本相同，但衍射峰强度稍有差别．

The preparation of FeNi ultra-fine powder by high frequency induction heating isdescribed. The formation mechanisn of ultra-fine particles (UFP) is discussed. The shapes, sizesand lattice parmeters of ultra-fine particles measured with electron microscope and small anglescattering of x-ray. We observed that the particle structure and of imponents are basically the sameas bulk material, but the peak values of diffraction are remarkably different.