[Untitled]

Autor: Eric Ferrage, Y. Saint-Gerard, Stefano Salvi, Alain M. Boudet, P. Micoud, F. Jouffret, S. Buratto, Jocelyne Ferret, G. Fourty, P. de Parseval, C. Bourgerette, Sabine Petit, François Martin, J. P. Fortune

Publikováno v: Journal of Materials Science. 37:1561-1573

The efficiency of talc used as nucleating agent (0.5% by weight) in polypropylene (PP) was determined taking into account the particle size d50, particle morphology and BET specific surface areas. These findings were compared to a mineral with simila

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::49f8390bc835589955399afc110eec98
https://doi.org/10.1023/a:1014929121367

TEM studies of the defects introduced by ion implantation in SiC

Autor: J. Gimbert, Jérémie Grisolia, B. de Mauduit, C. Bourgerette, Th Billon, G. Ben Assayag, Alain Claverie

Publikováno v: Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 147:62-67

We have undertaken a systematic study of the defects formed by ion implantation in SiC for a large variety of experimental conditions. B, N, Al and Ne ions were implanted into 6H–SiC at room temperature RT and at 650°C. Multiple energy implants we

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::6ca591c09ea63854fa55c253b5731a2f
https://doi.org/10.1016/s0168-583x(98)00572-2

Mesophase powders (carbonization and graphitization)

Autor: A. Oberlin, C. Bourgerette, N. El Horr

Publikováno v: Carbon. 32:1035-1044

Four mesophase powders, A, B, C, and D, are studied. A is petroleum derived, B, C, and D are commercialized powders and are coal-tar derived. No additives are recognized in A, which is almost devoid of cross-linking oxygen. In B, a thin deposit (~100

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::3895925daf80413a89f7d90cfbc9c608
https://doi.org/10.1016/0008-6223(94)90212-7

Structural and textural changes from polyimide Kapton to graphite: Part I. Optical microscopy and transmission electron microscopy

Autor: A. Oberlin, C. Bourgerette, Michio Inagaki

Publikováno v: Journal of Materials Research. 7:1158-1173

Kapton films, 25 μm thick, were carbonized and then graphitized at various temperatures up to 3000 °C. They were studied by optical microscopy and transmission electron microscopy and were prepared by thin-sectioning for transmission electron micro

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::8c0c96251337765bf72f72e06019f184
https://doi.org/10.1557/jmr.1992.1158

Cholesteric liquid crystals with a helical pitch gradient: Spatial distribution of the concentration of chiral groups by Raman mapping in relation with the optical response and the microstructure

Autor: M. Belalia, C. Bourgerette, D. Bormann, A. Krallafa, M. Belhakem, Michel Mitov

Publikováno v: Physical Review E : Statistical, Nonlinear, and Soft Matter Physics
Physical Review E : Statistical, Nonlinear, and Soft Matter Physics, 2006, 37 (5), ⟨10.1103/PhysRevE.74.051704⟩
Physical Review E : Statistical, Nonlinear, and Soft Matter Physics, American Physical Society, 2006, 37 (5), ⟨10.1103/PhysRevE.74.051704⟩

International audience; Cholesteric liquid crystals (CLC) selectively reflect light when the helical pitch is of the order of the wavelength of the incident beam propagating along the helix axis. The wavelength bandwidth, related to the optical aniso

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2acacbfde52cfb5c18bd47c7ef163381
https://doi.org/10.1103/physreve.74.051704