کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1474034 991073 2012 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
The impact of thermal history on the microstructure and properties of Dy-α-Sialon
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
The impact of thermal history on the microstructure and properties of Dy-α-Sialon
چکیده انگلیسی

In order to investigate the effect of sintering schedule on the microstructure and the property, Dy-α-Sialon ceramics were sintered by hot pressing (HP) method via three intended schedules: (1) heated the sample to 1720 °C, then rapidly cooled down to room temperature (RT), (2) heated the sample to 1720 °C, then directly cooled down to 1650 °C and hold the temperature for 60 min before cooled down to RT, and (3) heated the sample to 1720 °C and hold there for 60 min then cooled down to RT. A series of positions on the as-sintered ceramic disc along the center to the edge were chosen to study their microstructure, optical transmittance and mechanical properties. The non-uniformity of microstructure and properties along the radial direction of the as-sintered samples was justified to be caused by the varied thermal schedules. This may develop methods to fabricate gradient ceramics.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of the European Ceramic Society - Volume 32, Issue 7, June 2012, Pages 1371–1376
نویسندگان
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