Synthesis and densification of W–Cu, W–Cu–Ag and W–Ag composite powders via a chemical precipitation method

Golnaz Taghavi Pourian Azar, Hamid Reza Rezaie, Behnam Gohari, Hekmat Razavizadeh

    Research output: Contribution to journalArticle

    16 Citations (Scopus)

    Abstract

    This research was undertaken with an aim of making a comparison between W–Cu, W–Cu–Ag and W–Ag composites. In this way, nanostructured W–20wt%Cu, W–10wt%Cu–10wt%Ag and W–20wt%Ag composite powders were prepared by calcination of chemically precipitated initial powders and a subsequent reduction treatment. The powders were characterized using XRD and SEM analysis. The sintering behavior and hardness of samples were also investigated as a function of temperature. The sintered samples were evaluated by SEM. The results showed that at all sintering temperatures, W–10wt%Cu–10wt%Ag and W–20wt%Ag composite powders showed the most and the least sinterability, respectively. Furthermore, the maximum hardness after sintering at 1200 °C was belonged to W–20wt%Cu sample.
    Original languageEnglish
    Pages (from-to)432-436
    Number of pages5
    JournalJournal of Alloys and Compounds
    Volume574
    Early online date3 May 2013
    DOIs
    Publication statusPublished - Oct 2013

    Keywords

    • Metal matrix composites; Chemical synthesis; Sintering; Microstructure; Scanning electron microscopy, SEM; X-ray diffraction
    • Chemical synthesis
    • Sintering
    • Microstructure
    • Scanning electron microscopy
    • X-ray diffraction
    • SEM

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