Zobrazeno 1 - 10
of 14
pro vyhledávání: '"François A. Lavergne"'
Publikováno v:
Physical Review X, Vol 7, Iss 4, p 041064 (2017)
Understanding grain growth is key for controlling the microstructure and the mechanical properties of most polycrystalline materials, including metals, alloys, and ceramics. However, the precise mechanisms and kinetics of grain growth remain poorly u
Externí odkaz:
https://doaj.org/article/8bb0843a3930428bb595f7305170d48f
Publikováno v:
Physical Review Materials, 6, 7, pp. 1-8
Physical Review Materials, 6, 1-8
Physical Review Materials, 6, 1-8
Contains fulltext : 252461.pdf (Publisher’s version ) (Open Access)
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f01d2b958ef2ad7651b5a45aafdd7341
https://doi.org/10.1103/physrevmaterials.6.075604
https://doi.org/10.1103/physrevmaterials.6.075604
We show that the slow viscoelastic response of a foam is that of a power-law fluid with a terminal relaxation. Investigations of the foam mechanics in creep and recovery tests reveal that the power-law contribution is fully reversible, indicative of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7ef9bc756f8c5f7edce19b2e4d0e8a32
http://arxiv.org/abs/2205.03127
http://arxiv.org/abs/2205.03127
Publikováno v:
Proceedings of the National Academy of Sciences. 115:6922-6927
The formation and kinetics of grain boundaries are closely related to the topological constraints imposed on their complex dislocation structure. Loop-shaped grain boundaries are unique structures to establish such a link because their overall topolo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a7f0ef989662c6e6af777fd05fb15d70
https://doi.org/10.1073/pnas.1804352115
https://doi.org/10.1073/pnas.1804352115
Autor:
François A. Lavergne
Publikováno v:
Physics. 12
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a064828f8cb02ed93c195e2098972963
https://doi.org/10.1103/physics.12.99
https://doi.org/10.1103/physics.12.99
We discuss the various mechanisms involved in the spontaneous shrinkage of circular grain boundaries in two-dimensional colloidal crystals. We provide experimental evidence that these grain boundary loops shrink owing to three intermittent mechanisms
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b3d8b5361d0da74ff09ea06e7ca0518a
https://ora.ox.ac.uk/objects/uuid:fac2a496-086c-46ca-a54c-251e823ff35e
https://ora.ox.ac.uk/objects/uuid:fac2a496-086c-46ca-a54c-251e823ff35e
Publikováno v:
Science
Group formation in living systems typically results from a delicate balance of repulsive, aligning, and attractive interactions. We found that a mere motility change of the individuals in response to the visual perception of their peers induces group
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b67fc71f9ed139a0a013481efe189c4c
Publikováno v:
Physical Review X, Vol 7, Iss 4, p 041064 (2017)
Understanding grain growth is key for controlling the microstructure and the mechanical properties of most polycrystalline materials, including metals, alloys, and ceramics. However, the precise mechanisms and kinetics of grain growth remain poorly u
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c7eac6c853aa4d35fb92fe7e986a7253
http://ora.ox.ac.uk/objects/uuid:
http://ora.ox.ac.uk/objects/uuid:
Publikováno v:
Langmuir. 32(48)
We investigate the segregation of impurities to grain boundaries in colloidal polycrystalline monolayers using video-microscopy. A model colloidal alloy is prepared by embedding large spherical impurities in a polycrystalline monolayer of small host
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::02be472049942fae6519f67b95b39d49
http://ora.ox.ac.uk/objects/uuid:
http://ora.ox.ac.uk/objects/uuid:
We achieve active control of interfacial phenomena by optically trapping the interface using the gradient forces of a strongly focussed laser beam parallel to the interface. We illustrate our technique in a phase separated colloid-polymer mixture by
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b2d05133caaa9383687fdf40e6bc5cfa
https://ora.ox.ac.uk/objects/uuid:c623d858-a420-4724-9d25-cdd50774bdba
https://ora.ox.ac.uk/objects/uuid:c623d858-a420-4724-9d25-cdd50774bdba