Zobrazeno 1 - 10
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pro vyhledávání: '"Francis Delannay"'
Autor:
Francis Delannay
Publikováno v:
Materialia, Vol. 20, p. 101194 (2021)
According to the principles of diffusional creep, the normal and tangent components of the velocity jumps between adjacent grains arise from, respectively, the climbing and sliding of disconnections along grain boundaries. Stationary deformation thus
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9ddd831ebd040ea0115131b96d2ff0bb
https://hdl.handle.net/2078.1/250298
https://hdl.handle.net/2078.1/250298
Autor:
Francis Delannay
Publikováno v:
Journal of the Mechanics and Physics of Solids, Vol. 154, p. 104512 (2021)
The model of diffusional deformation is revisited by accounting for the dependence of the diffusion potential on grain boundary curvature. The issue is developed through the analysis of two case-studies: the deformation of a lattice of columnar grain
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::08d70da0fc96af46d8fc09671d326276
https://hdl.handle.net/2078.1/248125
https://hdl.handle.net/2078.1/248125
Autor:
Francis Delannay, Laurence Brassart
Publikováno v:
Mechanics of Materials, Vol. 143, p. 103312 (2020)
The effect of strain-induced grain shape anisotropy on diffusional creep viscosity is analysed in two dimensions via a model representing grains by cylinders with elliptical cross section. Both cases of dominance of grain boundary diffusion and latti
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::902fcd4a98384b11e376921074270faf
https://doi.org/10.1016/j.mechmat.2020.103312
https://doi.org/10.1016/j.mechmat.2020.103312
Autor:
Laurence Brassart, Francis Delannay
Publikováno v:
Journal of the American Ceramic Society, Vol. 102, no. 2, p. 736-747 (2019)
Modeling of bulk sintering viscosity usually neglects the contribution of pore surface diffusion with respect to grain‐boundary diffusion. This approximation is questionable at the high densification rates used today in advanced fast sintering tech
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::575e175a1e4bd4e295fc74cc99100cc9
https://doi.org/10.1111/jace.16058
https://doi.org/10.1111/jace.16058
Autor:
Francis Delannay
Publikováno v:
SSRN Electronic Journal.
The diffusion processes involved in the accommodation of grain boundary sliding in diffusional deformation are revisited by considering the role of grain boundary curvature and of the associated grain boundary migration. A method is developed for cal
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a0e7d88bf8cb3d2ab49f113070e7eb35
https://doi.org/10.2139/ssrn.3714495
https://doi.org/10.2139/ssrn.3714495
Publikováno v:
Metallurgical and Materials Transactions A
Metallurgical and Materials Transactions A, Springer Verlag/ASM International, 2016, 47 (11), pp.5569-5579. ⟨10.1007/s11661-016-3702-5⟩
Metallurgical and Materials Transactions A, Springer Verlag/ASM International, 2016, 47 (11), pp.5569-5579. 〈10.1007/s11661-016-3702-5〉
Metallurgical and Materials Transactions A, Springer Verlag/ASM International, 2016, 47 (11), pp.5569-5579. ⟨10.1007/s11661-016-3702-5⟩
Metallurgical and Materials Transactions A, Springer Verlag/ASM International, 2016, 47 (11), pp.5569-5579. 〈10.1007/s11661-016-3702-5〉
International audience; A model is developed to compute the capillary pressure for the migration of the liquid phase out or into a uniform solid-liquid-vapor system. The capillary pressure is defined as the reduction of the overall interface energy p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::36780bd4bca7b53dcccc865dca0367d2
https://doi.org/10.1007/s11661-016-3702-5
https://doi.org/10.1007/s11661-016-3702-5
Autor:
Francis Delannay
Publikováno v:
Surface Science. 648:262-270
The evolution of an aggregate of particles embedded in a fluid phase, no matter whether a liquid, a vapor, or a mixture of both, is determined by the dependence of the equilibrium interface area on porosity volume fraction. In system with open porosi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1f306e2abbbb2c38d2efc5c4e9df5695
https://doi.org/10.1016/j.susc.2015.11.004
https://doi.org/10.1016/j.susc.2015.11.004
Autor:
Laurence Brassart, Francis Delannay
Publikováno v:
Proceedings of the Royal Society A: Mathematical, Physical and Engineering Science, Vol. 474, no.2217, p. 20180104 (2018)
An original procedure is developed for simulating pore surface evolution during sintering at high strain rate while distinguishing two types of diffusion fluxes: transient surface fluxes governed by short-range curvature gradients and coupled fluxes
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0bb491e643412e47c0ac1f0934416d13
http://ora.ox.ac.uk/objects/uuid:
http://ora.ox.ac.uk/objects/uuid:
Autor:
Francis Delannay
The basic science underneath the phenomenon of thermal expansion in composite materials is presented on the basis of a comprehensive review of literature. Owing to the high yield strength of the matrix, the effective thermal expansion of metal matrix
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a3189750b39f3432ee92e1956bd8a4ef
https://doi.org/10.1016/b978-0-12-803581-8.03874-1
https://doi.org/10.1016/b978-0-12-803581-8.03874-1
Publikováno v:
Materials Science and Engineering: A
Materials Science and Engineering: A, Vol. 723, p. 324-333 (2018)
Materials Science and Engineering: A, Vol. 723, p. 324-333 (2018)
Friction Stir Processing (FSP) is an attractive manufacturing technique to produce Mg matrix composites since it avoids the problem of excessive reactivity between reinforcement and matrix encountered in liquid-phase processing routes. However, the s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::767ed1ebbed5cff240ae5f287c6ffec4