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The computational micromechanics of materials with porous ceramic coatings
Meccanica, 2015Plastic strain localization and fracture in materials with porous coatings are investigated. A dynamic boundary-value problem is solved using a plane strain approximation. A microstructure-based numerical simulation is performed by the finite difference method.
Ruslan Balokhonov +3 more
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Multi-Purpose Porous Ceramic Material
Materials Science Forum, 2018The main criteria for evaluation of ceramic products’ properties are strength, structural and mechanical, and thermophysical properties. To produce ceramic composites with a wide range of structural, mechanical, strength, and performance properties depending on application, various additives (flux agents, sintering agents, fillers) and heat treatment ...
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Effective Elastic Moduli of Porous Ceramic Materials
Journal of the American Ceramic Society, 1993This paper compares the applicability of a few theoretical models for determining effective elastic moduli, using published experimental data on ceramic materials in a porosity range of 0–40% and on a cellular material with a porosity of about 90%. As the experimental data for the effective Poisson's ratio involve a large scatter, a set of numerical ...
N. Ramakrishnan, V. S. Arunachalam
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Novel porous metal/ceramic membrane materials
Current Opinion in Solid State and Materials Science, 1999During the past 22 months, the preparation and application of novel porous metal/ceramic membrane materials have been extensively explored in the area of membrane science and catalysis. Thus, new preparation methods and new application concepts in membrane catalysis have been developed.
Weishen Yang, Guoxing Xiong
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Control of the Structure of Porous Glass-Ceramic Material
Glass and Ceramics, 2017The kinetics of pore formation in pressed parts of the system cullet – clay – colemanite, fired with different rates of heating, was investigated. It was found that the measured heating rates (2.5 – 3 K/min) bring the processes occurring during firing closer to equilibrium and make it possible even at 680°C to obtain glass ceramic materials with ...
E. S. Dorokhova +4 more
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Humidity control porous ceramics prepared from waste and porous materials
Materials Letters, 2011Abstract This study investigated the feasibility of generating humidity control porous ceramics by sintering a mixture of volcanic ash, weathered volcanic ash, and waste glass. The sintering conditions, including sintering time, sintering temperature, and various mixed portions of glass amendment, were tested.
Dinh-Hieu Vu +2 more
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Structural parameters of porous monodisperse ceramic materials
Refractories and Industrial Ceramics, 2000A method for determining the parameters of the porous structure of ceramic materials made from monodisperse particles and fibers that makes it possible to allow for the difference in the sizes of the interparticle and interfiber contacts is suggested. Analytical dependences for determining the coordination number of fiber systems as a function of the ...
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Advanced Porous Coating for Low‐Density Ceramic Insulation Materials
Journal of the American Ceramic Society, 1989The need for improved coatings on low‐density reusable surface insulation (RSI) materials used on the space shuttle has stimulated research into developing tougher coatings. The processing of a new porous composite “coating” for RSI called toughened unipiece fibrous insulation is diseassed.
Daniel B. Leiser +4 more
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Assessing the porous structure of ceramic filter materials
Refractories and Industrial Ceramics, 1997Theoretical expressions are derived whereby the permeability of ceramic filter materials can be deduced from experimental findings with allowance for the shape of specimens and the permeability of the compacted surface layers of the material. An example of calculations is given.
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Simulation of Turbulent Combustion in Porous Ceramic Materials
ASME 2011 9th International Conference on Fuel Cell Science, Engineering and Technology, 2011This paper presents two-dimensional numerical simulations of combustion of an air/methane mixture in a radial porous combustor using a model that explicitly considers the intra-pore levels of turbulent kinetic energy. Transport equations are written in their time-and-volume averaged form and a volume-based statistical turbulence model is applied to ...
Marcelo J. S. deLemos +1 more
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