کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1477731 991197 2008 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Liquid phase assisted hot pressing of boron suboxide-materials
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
Liquid phase assisted hot pressing of boron suboxide-materials
چکیده انگلیسی

B6O composites were prepared by hot pressing of B6O powder with alumina, aluminium and carbon additions. Dense materials with hardness higher than 30 GPa and fracture toughness of 3 MPa m1/2 were achieved at 1900 °C. The sintering behaviour and the formed phases were discussed on the bases of thermodynamic calculations. The thermodynamic properties of boron suboxide (B6O) were approximated at high temperatures. The phase equilibria computed based on the obtained thermodynamic properties, agree with the available experimental data. The modelled thermodynamic properties of B6O have been applied to analyse interpretation of the sintering behaviour and the stability of these materials. The thermodynamic calculations and microstructural analysis showed that the densification takes place by liquid phase sintering.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of the European Ceramic Society - Volume 28, Issue 8, 2008, Pages 1613–1621
نویسندگان
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