Zobrazeno 1 - 10 of 57 pro vyhledávání: '"M. Farkas-Jahnke"'
1
The observation of cubic tungsten trioxide at high-temperature dehydration of tungstic acid hydrate
Autor: M Farkas-Jahnke, Judit Pfeifer, I Kotsis, L Petrás, Cs. Balázsi
Publikováno v: Solid State Ionics. :411-416
The dehydration of tungstic acid hydrate, H2WO4·H2O samples prepared by the methods of Freedman [J. Am. Chem. Soc. 81 (1959) 3834.] ([Na]residual≤10 ppm)) and Zocher and Jacobson [Kolloidchem. Beih. 28–6 (1929) 167.] ([Na]residual=140 ppm) has b
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::bd0aca32a7409d015ccdfec3a8e73e08
https://doi.org/10.1016/s0167-2738(01)00806-2
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2
Nanoscale in-depth modification of CrOSi layers
Autor: M. Farkas-Jahnke, Giovanni Marletta, Imre Bertóti, Roger Kelly, András Tóth, Miklós Mohai
Publikováno v: Scopus-Elsevier
In-depth modification of CrOSi layers on a nanoscale has been performed by low energy inert (Ar + , He + ) and reactive (N 2 + ) ions. Chemical and short range structural investigations were done by XPS. Cr and Si were essentially oxidised in t
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9d5c662c9fc7282215dc40b0390ddbbc
https://doi.org/10.1016/s0168-583x(96)00577-0
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3
A reinvestigation of the preparation of tungsten oxide hydrate WO3, 1/3H2O
Autor: P. Tekula-Buxbaum, K. Vadasdi, M. Farkas-Jahnke, B.A. Kiss, J. Pfeifer, Cao Guifang
Publikováno v: Journal of Solid State Chemistry. 119:90-97
A reinvestigation of the synthesis procedures of WO3, 1/3H2O via the preparation and dehydration of H2WO4, H2O has been carried out in order to check the stoichiometry of WO3, 1/3H2O, the parent material of the important hexagonal WO3. The formation
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b9e383a6ea5416808be3838a5baf489b
https://doi.org/10.1016/0022-4596(95)80013-f
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6
Connections between polytypes, modulated structures and quasicrystals
Autor: M. Farkas-Jahnke
Publikováno v: Phase Transitions. 43:5-20
Polytypes built up of two or more different kinds of layers can be regarded as modulated structures, where the modulation means the stacking sequence of the different building units. Polytypes have a strictly periodic lattice in two dimensions, and t
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b962a27021e4ec46a70f6c77540b616a
https://doi.org/10.1080/01411599308207790
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8
Solid state reactions in the Fe2O3-CaCO3-In2O3 system
Autor: M. Farkas-Jahnke, Anna Sztaniszlav, Magdolna Balla, Csaba Novák
Publikováno v: Journal of Materials Science. 25:2353-2358
The kinetics of solid-state reactions of powdered reactants were investigated by X-ray and by differential thermogravimetry in a magnetic field. Measurements revealed mutual diffusion of the Fe3+ and In3+ ions in the Fe2O3-In2O3 system heat treated f
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::419202c56c5788e81f8dcef309a6f1f8
https://doi.org/10.1007/bf00638027
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