Zobrazeno 1 - 10 of 70 pro vyhledávání: '"Jean Senegas"'
1
Investigation by impedance and 19F-NMR spectroscopies of a new oxyfluoride solid solution range in the NaF–BiF3–Bi2O3 system
Autor: M. El Omari, J.M. Reau, Jean Senegas, R. Ya. Zakirov, T.V. Serov, E.I. Ardashnikova, V. A. Dolgikh
Publikováno v: Solid State Ionics. 138:233-242
A wide range of fluorite-type oxyfluoride solid solutions is exhibited in the NaF–BiF 3 –Bi 2 O 3 system. Starting from the entirely fluoride Na 0.5(1− z ) Bi 0.5(1+ z ) F (2+ z ) solid solution along the NaF–BiF 3 line, the range is extended
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::6c6b3523b3b69260a0881453d100c804
https://doi.org/10.1016/s0167-2738(00)00809-2
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2
19F NMR investigation of the K3InF6 ternary fluoride
Autor: Jean Senegas, M. El Omari, J.M. Reau
Publikováno v: Solid State Ionics. 134:323-329
The study of electrical properties of K 3 InF 6 , which offers four allotropic forms has shown that the higher-temperature transition at T C is of ionic–superionic type. An 19 F NMR spectroscopy investigation has been undertaken in order to determi
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::5a247335cf532917805087788b8c868c
https://doi.org/10.1016/s0167-2738(00)00756-6
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3
Ion conductivity and diffusion in ZrF4-based fluoride glasses containing LiF (0≤xLiF≤0.60)
Autor: M. Poulain, Jean-Maurice Réau, Jean Senegas, J.M Bobe
Publikováno v: Journal of Non-Crystalline Solids. 209:122-136
Electrical and diffusion properties of two complementary series of ZrF4-based fluoride glasses containing LiF were examined as a function of LiF content (0≤xLiF≤0.60). The ac conductivity data have been analyzed by the complex modulus formalism a
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b26fa4cda4f5a0aa526bda3c8fffc970
https://doi.org/10.1016/s0022-3093(96)00549-2
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4
F− ion conductivity and diffusion properties in ZrF4-based fluoride glasses with various NaF concentrations (0  xNaF  0.45)
Autor: M. Poulain, J.M Bobe, Jean Senegas, Jean-Maurice Réau
Publikováno v: Solid State Ionics. 82:39-52
Selecting two series of ZrF4-based fluoride glasses containing at the same time the BaF2 and NaF network modifiers and a third series with NaF only, an investigation of electrical and diffusion properties has been undertaken as a function of xNaF in
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::1114cc61f715474afe46706b65d31e04
https://doi.org/10.1016/0167-2738(95)00192-9
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5
The M1−xM″xF2 + 2x (M = Ca, Sr, Ba, Pb; M″ = Th, U) solid solutions: electrical properties and clustering processes
Autor: Xu Yong Jun, Jean Senegas, J.M. Reau, P. Hagenmuller
Publikováno v: Solid State Ionics. 78:315-331
A comparative investigation of electrical properties of the M1−xM″xF2 + 2x (M = Ca, Sr, Ba, Pb; M″ = Th, U) solid solutions has been carried out. The application of the clustering process model shows that all these solid solutions appear as cha
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::eb313fd23828cc4ffc8df1c7c4d6ecac
https://doi.org/10.1016/0167-2738(95)00111-i
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6
Determination of the influence of the NaF rate on the charge carriers parameters in some fluoride glasses containing the NaF alkali fluoride
Autor: J.M Bobe, M. Poulain, Jean-Maurice Réau, Jean Senegas, N. F. Uvarov, E.F. Hairetdinov
Publikováno v: Solid State Ionics. 74:195-204
The bulk impedance parameters of various fluoride glasses series containing a large extent in NaF rate have been determined from an analysis of ac conductivity data measured in a wide temperature range. The charge carriers concentration in each glass
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::3e2ab38d7231f171250b9cc303b774ab
https://doi.org/10.1016/0167-2738(94)90210-0
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7
Influence of calcium-hydroxyapatite on sodium borophosphate glasses31P and11B NMR investigations
Autor: Jean-Jacques Videau, Jean Senegas, J. F. Ducel, K. S. Suh
Publikováno v: Physica Status Solidi (a). 144:23-30
31P MAS and 11B NMR are used for structural investigations on glass samples with chemical composition (1 − X) [NaPO3−R Na2B4O7]−X Ca5(PO4)3OH. For the sodocalciphosphate glasses (R = 0), the 31 P MAS NMR spectra show a shortening of the length
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::6bb3c38b9cd05fdd3f184cd6ccaa30b7
https://doi.org/10.1002/pssa.2211440104
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9
19F NMR comparative investigation of some ZrF4-based fluoride glasses and some crystalline phases in the BaF2ZrF4 system
Autor: Jean Senegas, Jean-Maurice Réau, J.M Bobe
Publikováno v: Solid State Communications. 89:983-988
The 19F NMR comparative study of some alkali metal free ZrF4-based fluoride glasses and selected crystalline phases belonging to the BaF2ZrF4 system has shown the large analogy of low-temperature spectra of fluoride glasses with that of βBaZr2
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ebdc2c9f872d1d79f60bb87cb14d015c
https://doi.org/10.1016/0038-1098(94)90499-5
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