کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1498786 993279 2013 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Evidence of nanograin cluster coalescence in spark plasma sintered α-Al2O3
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
Evidence of nanograin cluster coalescence in spark plasma sintered α-Al2O3
چکیده انگلیسی

The aim of this study is to elucidate the coarsening kinetics involved during densification of fine-grained pure α-alumina by spark plasma sintering. Low temperature and short dwell time sintering conditions were used to preserve the nanocrystalline structure of the starting commercial powder (about 50 nm). Notwithstanding the above, submicron grain coarsened microstructures have been developed. The microstructure evolution of alumina under different sintering conditions points to a nanograin rotation densification mechanism as being responsible for the fast grain growth observed.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Scripta Materialia - Volume 69, Issue 7, October 2013, Pages 529–532
نویسندگان
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