Zobrazeno 1 - 10
of 43
pro vyhledávání: '"Julia Martynczuk"'
Autor:
Kazimierz Conder, Ruggero Frison, Dieter Stender, Ludwig J. Gauckler, Alexander Wokaun, Christof W. Schneider, Jennifer L. M. Rupp, Barbara Scherrer, Thomas Lippert, Julia Martynczuk
Publikováno v:
Physical Chemistry Chemical Physics
The crystallization kinetics of amorphous 3 and 8 mol% yttria stabilized zirconia (3YSZ and 8YSZ) thin films grown by pulsed laser deposition (PLD), spray pyrolysis and dc-magnetron sputtering are explored. The deposited films were heat treated up to
Autor:
N. Lejava, Speranta Tanasescu, Julia Martynczuk, M. Khundadze, Ludwig J. Gauckler, T. Machaladze, Florentina Maxim, Florina Teodorescu, V. S. Varazashvili, Zhèn Yáng, Alina Botea-Petcu
Publikováno v:
Materials Research Bulletin. 57:184-189
The compound Ba0.6Sr0.4Co0.8Fe0.2O3−δ with perovskite structure has been studied focusing mainly on the thermodynamic stability in correlation to the change in the oxygen stoichiometry. The thermochemical behavior has been investigated from room t
Autor:
Urs T. Gonzenbach, Julia Martynczuk, Ludwig J. Gauckler, S. Koltzenburg, Philip N. Sturzenegger
Publikováno v:
Colloids and Surfaces A: Physicochemical and Engineering Aspects. 447:44-50
We propose a new and versatile synthesis route for the formation of particle-stabilized gel-core microcapsules. With this route, microcapsules can be produced in a large size range of a few to hundreds of micrometres. Due to the high mechanical stabi
Autor:
Nicolae Totir, Ludwig J. Gauckler, Speranta Tanasescu, Julia Martynczuk, Florina Teodorescu, V. S. Varazashvili, Florentina Maxim, Zhèn Yáng, Alina Botea
Publikováno v:
Journal of Solid State Chemistry. 200:354-362
The thermodynamic stability of the perovskite-type oxides in the Ba x Sr 1− x Co 0.8 Fe 0.2 O 3− δ (BSCF) system was investigated with varying Ba:Sr ratios ( x =0.2, 0.4, 0.5, 0.6, 0.8) and correlated with the charge compensation mechanism and t
Autor:
Horst Hahn, Azad J. Darbandi, Ludwig J. Gauckler, Julia Martynczuk, Michel Prestat, Anna Evans, Cahit Benel
Publikováno v:
Fuel Cells. 13:441-444
Thin cathodes for micro-solid oxide fuel cells (micro-SOFCs) are fabricated by spin-coating a suspension of La0.6Sr0.4CoO3–δ (LSC) nanoparticulates obtained by salt-assisted spray pyrolysis. The resulting 250 nm thin LSC layers exhibit a three-dim
Autor:
Huan Ma, Barbara Scherrer, Dieter Stender, Jan Gustav Grolig, Ludwig J. Gauckler, Michel Prestat, Meike V.F. Schlupp, Julia Martynczuk, Thomas Lippert, Peter Kocher
Publikováno v:
Advanced Functional Materials. 23:1957-1964
The electrical conductivity of dense and nanoporous zirconia-based thin films is compared to results obtained on bulk yttria stabilized zirconia (YSZ) ceramics. Different thin film preparation methods are used in order to vary grain size, grain shape
Publikováno v:
Thin Solid Films. 522:58-65
Yttria stabilized zirconia thin films are deposited on silicon single crystal substrates by aerosol assisted chemical vapor deposition from precursor solutions of zirconium and yttrium 2,4-pentanedionate in ethanol. Continuous films are obtained usin
Publikováno v:
Advanced Energy Materials. 3:375-385
Microstructures of yttria stabilized zirconia thin films deposited by aerosol assisted chemical vapor deposition (AA-CVD) are correlated with the thermal decomposition behavior of the corresponding metal precursors, zirconium and yttrium 2,4-pentaned
Autor:
Meike V.F. Schlupp, Jan Gustav Grolig, Ludwig J. Gauckler, Huan Ma, Barbara Scherrer, Michel Prestat, Julia Martynczuk
Publikováno v:
physica status solidi (a). 209:1414-1422
The electrical cross-plane conductivity of 8 mol% yttria stabilized zirconia (YSZ) thin films prepared by different deposition techniques, namely aerosol assisted chemical vapor deposition, wet spray pyrolysis (SP), and pulsed laser deposition (PLD),
Autor:
Julia Martynczuk, Anja Bieberle-Hütter, Barbara Scherrer, Jennifer L. M. Rupp, Jan Gustav Grolig, Selmar Binder, Ludwig J. Gauckler, Michel Prestat, Henning Galinski
Publikováno v:
Advanced Functional Materials. 22:3509-3518
Microstructures of yttria-stabilized zirconia (YSZ) thin fi lms deposited by spray pyrolysis at 370 ° C on sapphire are investigated. The as-deposited fi lms are predominantly amorphous and crystallize upon heating at temperatures above 370 ° C, de