کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7898217 | 1510133 | 2018 | 30 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Escape from the strength-to-toughness paradox: Bulk ceramics through dual composite architectures
ترجمه فارسی عنوان
فرار از پارادوکس قدرت به سختی: سرامیک فله از طریق معماری کامپوزیت دوگانه
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
چکیده انگلیسی
This paper describes an approach to escape from the classic strength-toughness trade-off in bulk ceramics using the dual composite architectural concept. The key questions addressed by the research were: can dual composite architectures be fabricated? -how do dual composite architectures affect the physical properties of ceramics? -do dual composite architectures affect the mechanical behavior of composites? -do dual composite architectures have increased damage tolerance at elevated temperatures? These questions were answered positively. Reinforcing granules dispersed in loose powder mixtures were hot-pressed to obtain fully dense dual composite architectures with target overall composition. Defined sub-composites (labeled granule and matrix) of similar compositions, but differing engineered microstructures, were successfully retained. The brittle-to-ductile transition of MoSi2 above 1400â¯K enabled the simultaneous increase in both strength and toughness, and values of up to 440â¯MPa and 11.5â¯MPaâm, respectively, were experimentally determined at 1773â¯K.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of the European Ceramic Society - Volume 38, Issue 8, July 2018, Pages 2961-2970
Journal: Journal of the European Ceramic Society - Volume 38, Issue 8, July 2018, Pages 2961-2970
نویسندگان
Frédéric Monteverde, Cesare Melandri, Simone Failla, Ryan J. Grohsmeyer, Gregory E. Hilmas, William G. Fahrenholtz,