Three-dimensional morphology of (W,V)Cx in VC-doped WC-Co hard metals

I. Sugiyama, Y. Mizumukai, T. Taniuchi, K. Okada, F. Shirase, T. Tanase, Y. Ikuhara, T. Yamamoto

    Research output: Contribution to journalArticlepeer-review

    26 Citations (Scopus)


    The actual three-dimensional morphology of WC grains and grain growth inhibitors ((W,V)Cx) on the grains are determined for VC-doped WC-Co hard metals. WC grains have a triangular prismatic shape with atomically sharp corners, and some trapezoidal prisms are formed on each prismatic plane. The plan view chemical mapping of a trapezoidal prism has revealed that (W,V)C x phases form hemisphere shapes with some planar layers. The mechanism for forming islands is discussed in terms of lattice mismatch.

    Original languageEnglish
    Pages (from-to)473-476
    Number of pages4
    JournalScripta Materialia
    Issue number6
    Publication statusPublished - 2013 Sep


    • Energy dispersive
    • High-angle annular dark field (HAADF)
    • High-resolution electron microscopy (HREM)
    • Liquid-phase sintering
    • Refractory metals
    • X-ray spectroscopy (EDXS)

    ASJC Scopus subject areas

    • Materials Science(all)
    • Condensed Matter Physics
    • Mechanics of Materials
    • Mechanical Engineering
    • Metals and Alloys


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