caa a22 4500 378881078 CHVBK 20180305123431.0 cr unu---uuuuu 161128e20030101xx s 000 0 eng 10.1351/pac200375070889 doi (NATIONALLICENCE)gruyter-10.1351/pac200375070889 Martin M. Institute of Physical Chemistry,Aachen University of Technology, Templergraben 59, D-52056 Aachen, Germany Materials in thermodynamic potential gradients [Elektronische Daten] [M. Martin] In materials that are exposed to thermodynamic potential gradients (i.e., gradients of chemical potentials, electrical potential, temperature, or pressure), transport processes of the mobile components occur. These transport processes and the coupling between different processes are not only of fundamental interest, but are also the origin of degradation processes, such as kinetic demixing and decomposition and changes in the morphology of the material, all of which are of great practical relevance.Two classes of materials will be considered: semi-and ion-conducting oxides and ion-conducting halides. In oxides, kinetic demixing of the cations in a multicomponent oxide and kinetic decomposition of the oxide under the influence of an applied thermodynamic potential gradient will be considered for homovalent oxide solid solutions and for heterovalently doped oxides. In ion-conducting halides, the morphological stability of solid/solid interfaces, which are driven by an external electrical potential gradient, is studied. Monte Carlo simulations show that the morphological stability of the interface is determined by the difference in the ionic conductivities of the two crystals. © 2013 Walter de Gruyter GmbH, Berlin/Boston Pure and Applied Chemistry De Gruyter 75/7(2003-01-01), 889-903 0033-4545 75:7<889 2003 75 pac https://doi.org/10.1351/pac200375070889 text/html Onlinezugriff via DOI 1 research article jats NATIONALLICENCE 856 40 https://doi.org/10.1351/pac200375070889 text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Martin M. Institute of Physical Chemistry,Aachen University of Technology, Templergraben 59, D-52056 Aachen, Germany NATIONALLICENCE 773 0- Pure and Applied Chemistry De Gruyter 75/7(2003-01-01), 889-903 0033-4545 75:7<889 2003 75 pac CC0 http://creativecommons.org/publicdomain/zero/1.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-gruyter