کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1579472 1514831 2010 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Spark plasma sintering of submicron-sized Cu-powder—Influence of processing parameters and powder oxidization on microstructure and mechanical properties
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد دانش مواد (عمومی)
پیش نمایش صفحه اول مقاله
Spark plasma sintering of submicron-sized Cu-powder—Influence of processing parameters and powder oxidization on microstructure and mechanical properties
چکیده انگلیسی

This paper describes the microstructures and nanomechanical properties of copper consolidated of oxidized submicron-sized Cu-powder (average particle size 410 nm) by spark plasma sintering (SPS). Good compact density, small grain size (460 nm) and microhardness of 1.24 GPa were achieved at 873 K in 6 min with 100 MPa, Cu2O-content being close to 20%. At higher sintering temperature, the grain size increased leading to decrease in hardness. The HIPed compact that was made for reference contained lower Cu2O and had lower density and larger grain size. It was concluded that the SPS process was superior to HIP consolidation in terms of microhardness and microstructure of the final material. Furthermore, the presence of Cu2O seemed not to have a marked effect on the SPS consolidation process, i.e. the obtained densities of the SPS samples were of 99.7% of theoretical density at the best.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: A - Volume 527, Issues 10–11, 25 April 2010, Pages 2733–2737
نویسندگان
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