Thermo-elastic properties in short fibre reinforced ultra-high temperature ceramic matrix composites: Characterisation and numerical assessment
نویسندگان
چکیده
The thermo-elastic properties of a novel class ceramic composites based on an ultra-refractory matrix and containing short carbon fibre to provide failure tolerance thermal shock resistance were experimentally characterised numerically simulated. samples fabricated with volume fractions ranging from 5 60 vol% featured by homogeneous dispersion along the basal plane due processing route. A random sequential adsorption algorithm was implemented generate Representative Volume Elements (RVEs), following which finite element (FE) analyses conducted determine elastic modulus coefficient expansion . Comparison experimental modelling results showed good agreement for at low fractions, CTE higher fractions. Discrepancies are attributed significant evolution composite microstructure upon high temperatures, as revealed microscopic analysis. observations emphasise need account effects microstructural changes constituent in thermo-mechanical sintered composites.
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ژورنال
عنوان ژورنال: Materials today communications
سال: 2021
ISSN: ['2352-4928']
DOI: https://doi.org/10.1016/j.mtcomm.2021.102754