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

    13 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

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    Densification
    Powders
    Sintering
    Composite materials
    Hardness
    Scanning electron microscopy
    Calcination
    Temperature

    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

    Cite this

    Synthesis and densification of W–Cu, W–Cu–Ag and W–Ag composite powders via a chemical precipitation method. / Taghavi Pourian Azar, Golnaz; Rezaie, Hamid Reza ; Gohari, Behnam; Razavizadeh, Hekmat.

    In: Journal of Alloys and Compounds, Vol. 574, 10.2013, p. 432-436.

    Research output: Contribution to journalArticle

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    title = "Synthesis and densification of W–Cu, W–Cu–Ag and W–Ag composite powders via a chemical precipitation method",
    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.",
    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",
    author = "{Taghavi Pourian Azar}, Golnaz and Rezaie, {Hamid Reza} and Behnam Gohari and Hekmat Razavizadeh",
    year = "2013",
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    AU - Taghavi Pourian Azar, Golnaz

    AU - Rezaie, Hamid Reza

    AU - Gohari, Behnam

    AU - Razavizadeh, Hekmat

    PY - 2013/10

    Y1 - 2013/10

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    AB - 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.

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

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    KW - Sintering

    KW - Microstructure

    KW - Scanning electron microscopy

    KW - X-ray diffraction

    KW - SEM

    UR - https://www.researchgate.net/publication/257362825_Synthesis_and_densification_of_W-Cu_W-Cu-Ag_and_W-Ag_composite_powders_via_a_chemical_precipitation_method

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