کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1581723 1514859 2009 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A novel rapid route for synthesizing WC–Co bulk by in situ reactions in spark plasma sintering
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد دانش مواد (عمومی)
پیش نمایش صفحه اول مقاله
A novel rapid route for synthesizing WC–Co bulk by in situ reactions in spark plasma sintering
چکیده انگلیسی

A novel rapid route for preparing WC–Co cemented carbides bulk, which integrated the synthesis of the composite powder by in situ reactions and subsequent consolidation in the spark plasma sintering (SPS) system, was proposed. The phase configurations both in the synthesized composite powder and in the sintered bulk were analyzed in details. It was shown that the obtained WC–Co bulk has a homogeneous and fine-grained structure and good combined mechanical properties. As compared with the conventional methods, the present preparation route has been remarkably simplified. Particularly, with the greatly reduced temperature and time in the preparation procedures, it is effective to control the grain coarsening during the processes. By taking into account the characteristics of the SPS technology, the formation mechanism of the WC–Co composite by in situ reduction and carbonization reactions was proposed.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: A - Volume 499, Issues 1–2, 15 January 2009, Pages 476–481
نویسندگان
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