Thermal Shock Study on Different Advanced Ceramics by Laser Irradiation in Different Media

Publikationstyp
Journal Article
Publikationsdatum
2016-01-01
Sprache
English
Author
Pulz, Robert 
Rehmer, Birgit 
Schneider, Gerold A. 
Skrotzki, Birgit 
Institut
Keramische Hochleistungswerkstoffe M-9 
TORE-URI
http://hdl.handle.net/11420/5719
Enthalten in
Advanced engineering materials 
Volume
18
Issue
1
Start Page
132
End Page
140
Citation
Advanced Engineering Materials 1 (18): 132-140 (2016-01-01)
Publisher DOI
10.1002/adem.201500162
Scopus ID
2-s2.0-84952981855
The thermal shock behavior of three commercial-advanced ceramics (SSiC, MgO-PSZ, Al2O3) is characterized in air and vacuum applying a laser thermal shock. The available testing system permits the reproducible setting of defined temperature profiles in thin disks and allows a heating-up thermal shock in various media. Due to the accurate determination of the time- and space-resolved temperature distribution, the local stress state can be calculated as a function of time. It is shown that the thermal shock strength is highest for SSiC and lowest in Al2O3 with MgO-PSZ in between. The approach presented in this work allows quantifying the stress state at failure in terms of tangential tensile stress. The investigated environment does not affect the thermal shock resistance under the studied experimental conditions.