Three-dimensional phase-field study of grain coarsening and grain shape accommodation in the final stage of liquid-phase sintering

التفاصيل البيبلوغرافية
العنوان: Three-dimensional phase-field study of grain coarsening and grain shape accommodation in the final stage of liquid-phase sintering
المؤلفون: Jef Vleugels, Liesbeth Vanherpe, Hamed Ravash, Nele Moelans
المصدر: Journal of the European Ceramic Society. 37:2265-2275
بيانات النشر: Elsevier BV, 2017.
سنة النشر: 2017
مصطلحات موضوعية: Ostwald ripening, 3-D microstructure simulation, Materials science, Sintering, Wetting, 02 engineering and technology, 01 natural sciences, Annealing, Multi-phase system, liquid phase sintering, symbols.namesake, 0103 physical sciences, Materials Chemistry, Phase-field model, grain growth, Composite material, 010302 applied physics, Liquid phase sintering, 021001 nanoscience & nanotechnology, Surface energy, Grain growth, Crystallography, Particle-size distribution, Ceramics and Composites, symbols, Grain boundary, Crystallite, phase-field method, 0210 nano-technology
الوصف: A 3-dimensional phase-field model is implemented to simulate the grain evolution in the final stage of liquid-phase sintering. The model considers a liquid phase and a polycrystalline solid phase. Results for varying ratios of the solid-solid interface energy to solid-liquid interface energy and varying solid volume fractions are presented. A variety of microstructures, from fully connected grain structures with liquid pockets at the grain junctions to individual grains fully wetted by the liquid matrix, is seen. The 3 main mechanisms for particle shape accommodation, namely, contact flattening, Ostwald ripening and particle bonding, are reproduced in the simulations. The solid volume fraction, particle size distribution, contiguity, connectivity, particle-particle contact areas and the number of particle contacts per particle are measured as a function of time. The exponent in the power growth law varies between 2.4, for the fully connected grain structures, and 3, for the completely wetted grains. ispartof: Journal of the European Ceramic Society vol:37 issue:5 pages:2265-2275 status: published
وصف الملف: application/pdf
تدمد: 0955-2219
DOI: 10.1016/j.jeurceramsoc.2017.01.001
URL الوصول: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::79c8c7e69751348b45aa8473e9c19af5
https://doi.org/10.1016/j.jeurceramsoc.2017.01.001
Rights: OPEN
رقم الانضمام: edsair.doi.dedup.....79c8c7e69751348b45aa8473e9c19af5
قاعدة البيانات: OpenAIRE
الوصف
تدمد:09552219
DOI:10.1016/j.jeurceramsoc.2017.01.001