Influence of Particle Attributes on Residual Stresses in Particulate Ceramic Composites

0469176 - ÚFM 2018 RIV CH eng C - Conference Paper (international conference)
Štegnerová, Kateřina - Náhlík, Luboš - Bermejo, R. - Hutař, Pavel
Influence of Particle Attributes on Residual Stresses in Particulate Ceramic Composites.
Materials Structure & Micromechanics of Fracture VIII. Zürrich: Trans Tech Publications, 2017 - (Šandera, P.), Č. 258 (2017), s. 190-193. Solid State Phenomena, 258. ISBN 978-3-03835-626-4. ISSN 1662-9779.
[MSMF8. International Conference on Materials Structure and Micromechanics of Fracture /8./. Brno (CZ), 27.06.2016-29.06.2016]
R&D Projects: GA MŠMT LM2015069; GA ČR GA15-09347S
Institutional support: RVO:68081723
Keywords : particulate ceramic composite * residual stresses * finite element method * ceramics for microelectronics
OECD category: Audio engineering, reliability analysis

This contribution deals with the issue of residual stresses in particulate ceramic composites used in microelectronics. Residual stresses are developed in the composite due to cooling during manufacturing process. Different coefficients of thermal expansions of particles and matrix cause important residual stress in the composite influencing their behaviour. The main aim of this paper is to determine influence of particle size, distribution, shape, orientation and material properties on magnitude and distribution of residual stresses in the composite matrix. Three dimensional numerical model and finite element method is used for extended numerical simulations. Results obtained contribute to a better understanding of distribution of residual stresses and fracture processes in the studied type of composite.
Permanent Link: http://hdl.handle.net/11104/0271191