Výsledky vyhledávání - "F. Laher-Lacour"

Compressibility of nanostructured alumina phases determined from synchrotron x-ray diffraction studies at high pressure

Autor: Malik Maaza, T. Le Bihan, Mohamed Mezouar, J. Zhao, Giovanni R. Hearne, M. J. Witcomb, F. Laher-Lacour

Publikováno v: Journal of Applied Physics. 90:3280-3285

Synchrotron x-ray diffraction studies up to pressures of 30 GPa have been performed on both nanostructured γ-Al2O3 and α-Al2O3. The P-V equation of state has been calculated from a fit to the diffraction data to obtain the compressibility for each

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::bfe5cab5760812f5ee1ef18f62576531
https://doi.org/10.1063/1.1394915

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Structure and microstructure in nanocrystalline YBa2Cu3O7−δ powder

Autor: C. Weyl, J. Zhao, C. Lacour, F. Laher-Lacour, P. Thuéry

Publikováno v: Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 122:606-609

Freeze drying technique is a new method developed to condense nanocrystalline particles. It has been applied to get submicro-sized YBaCuO powders about 150 nm that is the same order than the London penetration depth λL. Structural analysis by Neutro

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::621bdc14eade153872162f8c00a76829
https://doi.org/10.1016/s0168-583x(96)00758-6

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Investigation of a nanocrystalline YBa2Cu3O7 − δ powder by neutron and electron diffractions

Autor: C. Weyl, F. Laher-Lacour, P. Thuéry, C. Lacour, J. Zhao

Publikováno v: Journal of Physics and Chemistry of Solids. 56:1211-1221

The structural characterization of a submicron-sized YBaCuO powder sample, obtained by freeze-drying preparation, was carried out using neutron diffraction from room temperature down to liquid helium temperature. A temperature independent broadening

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::0e97bce1863991fd1e105e138e90b125
https://doi.org/10.1016/0022-3697(95)00052-6

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Synthesis of nanometric cubic BaTiO3 by using and original chemical route: Freeze-drying method

Autor: Hichem Dammak, Marie-Laurence Giorgi, B. Dkhil, C. Ménoret, F. Laher-Lacour, Charlotte Malibert, Christine Bogicevic, Jean-Michel Kiat

Publikováno v: Ferroelectrics
Ferroelectrics, Taylor & Francis: STM, Behavioural Science and Public Health Titles, 2002, 270 (1), pp.57-62. ⟨10.1080/00150190211234⟩
ResearcherID
Ferroelectrics, Taylor & Francis: STM, Behavioural Science and Public Health Titles, 2002, 270 (1), pp.57-62. 〈10.1080/00150190211234〉
Ferroelectrics, 2002, 270 (1), pp.57-62. ⟨10.1080/00150190211234⟩

International audience; We have succeeded to synthesize nanopowders of BaTiO(3) with the freeze-drying method, using barium acetate Ba(CH(3)CO(2))(2) and titanium isopropoxide Ti(Opr(i))(4) precursors. The detailed way of operating is described. Stru

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1e68317f388570bf7a9edae04e501f21
https://hal-centralesupelec.archives-ouvertes.fr/hal-01253072

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