Relaxation kinetics of the intrinsic compressive stress in powder aerosol deposited titania films during thermal treatment

Title data

Paulus, Daniel ; Etemadieh, Kimiya ; Moos, Ralf:
Relaxation kinetics of the intrinsic compressive stress in powder aerosol deposited titania films during thermal treatment.
In: Ceramics International. Vol. 52 (2026) . - pp. 38496-38500.
ISSN 1873-3956
DOI: https://doi.org/10.1016/j.ceramint.2026.07.115

Official URL:

Abstract in another language

This study investigated the relaxation of intrinsic compressive stress in powder aerosol deposited films. For this purpose, titanium oxide (TiO2) was deposited on thin YSZ substrates, and it was investigated how the stress declines with time at 150 °C and 200 °C. Based on the relaxation curves, two different processes were identified, one of which dominates at high stresses. For the high-stress-dominating process an activation energy of 0.22 eV was determined. For the other process, it was determined to be 0.11 eV. The relaxation itself was attributed by Coble creep and grain boundary sliding.

Further data

Item Type:	Article in a journal
Refereed:	Yes
Institutions of the University:	Faculties > Faculty of Engineering Science Faculties > Faculty of Engineering Science > Chair Functional Materials > Chair Functional Materials - Univ.-Prof. Dr.-Ing. Ralf Moos Profile Fields > Advanced Fields > Advanced Materials Research Institutions > Central research institutes > Bayreuth Center for Material Science and Engineering - BayMAT
Result of work at the UBT:	Yes
DDC Subjects:	600 Technology, medicine, applied sciences > 620 Engineering
Date Deposited:	31 Aug 2026 07:55
Last Modified:	31 Aug 2026 07:55
URI:	https://eref.uni-bayreuth.de/id/eprint/99327