Synthesis and oxidation of nanocrystalline HfB2

Luyang Chen, Yunle Gu, Liang Shi, Zeheng Yang, Jianhua Ma, Yitai Qian

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    49 Citations (Scopus)

    Abstract

    Nanocrystalline hafnium diboride (HfB2) has been prepared by the reaction of HfCl4 with NaBH4 at 600°C in an autoclave. The X-ray powder diffraction (XRD) pattern can be indexed as hexagonal HfB2 with the lattice constants of a=3.146 and c=3.456Å. The transmission electron microscopy (TEM) image shows a particle morphology with an average size of 25nm. The selected area electron diffraction (SAED) pattern confirms the presence of hexagonal HfB2. The oxidation behavior of HfB2 is studied by thermogravimetric analysis (TGA) and differential thermal analysis (DTA).

    Original languageEnglish
    Pages (from-to)353-356
    Number of pages4
    JournalJournal of Alloys and Compounds
    Volume368
    Issue number1-2
    DOIs
    Publication statusPublished - 2004 Apr 14

    Keywords

    • Chemical synthesis
    • Intermetallics
    • X-ray diffraction

    ASJC Scopus subject areas

    • Mechanics of Materials
    • Mechanical Engineering
    • Metals and Alloys
    • Materials Chemistry

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