Dependence of the breakdown strength on thickness and permittivity

Publikationstyp
Conference Paper
Date Issued
2013
Sprache
English
Author(s)
Neusel, Claudia  
Schneider, Gerold A.  
Institut
Keramische Hochleistungswerkstoffe M-9  
TORE-URI
http://hdl.handle.net/11420/6063
Start Page
31
End Page
35
Article Number
6619786
Citation
2013 IEEE International Conference on Solid Dielectrics (ICSD) : June 30 2013 - July 4 2013, Bologna, Italy. - Piscataway, NJ : IEEE, 2013. - Art.-Nr. 6619786, i.e. Seite 31-35 (2013)
Contribution to Conference
2013 IEEE International Conference on Solid Dielectrics (ICSD), June 30 2013 - July 4 2013, Bologna, Italy  
Publisher DOI
10.1109/ICSD.2013.6619786
Scopus ID
2-s2.0-84891595807
Publisher
IEEE
The dielectric breakdown strengths of Al2O3 and BaTiO3 ceramics have been investigated in terms of thickness and permittivity dependence. From the obtained results, it is possible to define a thickness dependent breakdown strength regime. For bulk samples it will be shown, that the breakdown strength is inversely proportional to the permittivity. Furthermore space charge limited conduction (SCLC) can be identified as dominating conduction mechanism in Al2O3 and BaTiO3 ceramics. Based on the experimental findings a recently developed Griffith type energy release rate model for tubular channels can be applied [1]. © 2013 IEEE.
Subjects
Al O 2 3
BaTiO 3
breakdown strength
permittivity
thickness dependence
DDC Class
600: Technik
620: Ingenieurwissenschaften