Characterization and Growth Morphology of the Ultrafine Manganese Particles

Jian XU Xiukui SUN Wenxiu CHEN Wenduo WEI State Key Laboratory of RSA,Institute of Metal Research,Academia Sinica,Shenyang 110015,China

摘 要：<正> In present work.the ultrafine manganese particles were prepared by gas evaporation method.Thestructure,size distribution,growth morphology and surface oxidation for the particles were investi-gated by using X-ray diffraction and electron microscopy.The results indicated that three types ofthe particles,with the structure of α-Mn,β-Mn and one unknown,respectively existed in the man-ganese particles.The growth morphology of the particles depended on the size and intrinsicstructure.When exposed to air,the particles were slightly oxidized only in the surface layer and sta-ble in air.

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