A Simple Calibration Method to Consider Plastic Deformation Influence on X-ray Elastic Constant Based on Peak Width Variation

Autor: Ewann Gautier, Pierre Faucheux, Bruno Levieil, Laurent Barrallier, Sylvain Calloch, Cédric Doudard

Publikováno v: Metals, Vol 14, Iss 1, p 62 (2024)

The sin²⁡ψ method is the general method for analyzing X-ray diffraction stress measurements. This method relies on the estimation of a parameter known as 12S2hkl, which is generally considered as a material constant. However, various studies have

Externí odkaz: https://doaj.org/article/91871d2efdbb4226a04561607f42de8b

Precipitation during the Nitriding in Fe-Cr-C Steels

Autor: Naima, Hamedi, Lamine, Djeghlal Med, Laurent, Barrallier

Publikováno v: In Materials Today: Proceedings 2018 5(9) Part 2:17501-17514

Investigation of subgrains in directionally solidified cast mono-seeded silicon and their interactions with twin boundaries

Autor: Hadjer Ouaddah, Nathalie Mangelinck-Noël, Fabrice Guittonneau, Etienne Pihan, Maike Becker, Guillaume Reinhart, Gabrielle Regula, Laurent Barrallier

Publikováno v: Solar Energy Materials and Solar Cells
Solar Energy Materials and Solar Cells, 2020, 218, pp.110817
Solar Energy Materials and Solar Cells, Elsevier, 2020, 218, pp.110817. ⟨10.1016/j.solmat.2020.110817⟩
Solar Energy Materials and Solar Cells, 2020, 218, pp.110817. ⟨10.1016/j.solmat.2020.110817⟩
HAL

Directional solidification of a cast mono silicon seed and of a float-zone (FZ) silicon seed was performed and the grain and defect structures of the seeds as well as of the regrown parts are analyzed. In situ X-ray diffraction imaging enabled the ob

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0cb256abc82d18eca6b839f8b0c2fa74
https://hal.archives-ouvertes.fr/hal-03169396/file/SGBManuscript_revised.pdf

X-ray Based in Situ Investigation of Silicon Growth Mechanism Dynamics - Application to Grain and Defect Formation

Autor: Nathalie Mangelinck-Noël, Elodie Boller, Vasiliki Stamelou, M.G. Tsoutsouva, Alexander Rack, Thècle Riberi-Béridot, Isabelle Périchaud, Guillaume Reinhart, Fabrice Guittonneau, Maike Becker, Hadjer Ouaddah, Laurent Barrallier, Gabrielle Regula, Jean-Paul Valade, José Baruchel

Publikováno v: Crystals
Crystals, 2020, 10 (7), pp.555. ⟨10.3390/cryst10070555⟩
Crystals, MDPI, 2020, 10 (7), pp.555. ⟨10.3390/cryst10070555⟩
'Crystals ', vol: 10, pages: 555-1-555-25 (2020)
Crystals, Vol 10, Iss 555, p 555 (2020)

International audience; To control the final grain structure and the density of structural crystalline defects in silicon (Si) ingots is still a main issue for Si used in photovoltaic solar cells. It concerns both innovative and conventional fabricat

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::833c75c419582ea60a1d560402b82395
https://hal.science/hal-02910279

Gaseous nitriding behaviour of 33CrMoV12-9 steel: Evolution of the grain boundaries precipitation and influence on residual stress development

Autor: Laurent Barrallier, Guillaume Fallot, Sébastien Jegou

Publikováno v: Surface and Coatings Technology. 339:78-90

The gaseous nitriding behaviour of 33CrMoV12-9 steel was investigated. The co-diffusion of nitrogen and carbon, precipitation at grain boundaries and mechanical properties evolutions (microhardness, residual stresses) are compared for several nitridi

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::aea645fbe8548750576b42961aef5eee
https://doi.org/10.1016/j.surfcoat.2018.01.068