TY  - JOUR
AU  - Yan, Gang
AU  - Malzbender, Jürgen
AU  - Fu, Shuo
AU  - Gross, Jürgen Peter
AU  - Yu, Shicheng
AU  - Eichel, Rüdiger-A.
AU  - Schwaiger, Ruth
TI  - Fracture behavior of solid electrolyte LATP material based on micro-pillar splitting method
JO  - Journal of the European Ceramic Society
VL  - 41
IS  - 10
SN  - 0955-2219
CY  - Amsterdam [u.a.]
PB  - Elsevier Science
M1  - FZJ-2021-02830
SP  - 5240 - 5247
PY  - 2021
AB  - The NASICON type solid electrolyte LATP is a promising candidate for all-solid-state Li-ion batteries considering energy density and safety aspects. To ensure the performance and reliability of batteries, crack initiation and propagation within the electrolyte need to be suppressed, which requires knowledge of the fracture characteristics. In the current work, micro-pillar splitting was applied to determine the fracture toughness of LATP material for different grain orientations. The results are compared with data obtained using a conventional Vickers indentation fracture (VIF) approach. The fracture toughness obtained via micro-pillar splitting test is 0.89 ± 0.13 MPa∙m1/2, which is comparable to the VIF result, and grain orientation has no significant effect on the intrinsic fracture toughness. Being a brittle ceramic material, the effect of pre-existing defects on the toughness needs to be considered.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000651864000003
DO  - DOI:10.1016/j.jeurceramsoc.2021.04.026
UR  - https://juser.fz-juelich.de/record/893791
ER  -