TY - JOUR
T1 - Synthesis and densification of W–Cu, W–Cu–Ag and W–Ag composite powders via a chemical precipitation method
AU - Taghavi Pourian Azar, Golnaz
AU - Rezaie, Hamid Reza
AU - Gohari, Behnam
AU - Razavizadeh, Hekmat
PY - 2013/10
Y1 - 2013/10
N2 - 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.
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
KW - Chemical synthesis
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
UR - https://www.scopus.com/pages/publications/84879247874
U2 - 10.1016/j.jallcom.2013.04.172
DO - 10.1016/j.jallcom.2013.04.172
M3 - Article
SN - 0925-8388
VL - 574
SP - 432
EP - 436
JO - Journal of Alloys and Compounds
JF - Journal of Alloys and Compounds
ER -