This title appears in the Scientific Report : 2020 

Fracture toughness of single grains and polycrystalline Li7La3Zr2O12 electrolyte material based on a pillar splitting method
Nonemacher, Juliane Franciele
Arinicheva, Yulia / Yan, Gang / Finsterbusch, Martin / Krüger, Manja / Malzbender, Jürgen (Corresponding author)
Werkstoffsynthese und Herstellungsverfahren; IEK-1
Werkstoffstruktur und -eigenschaften; IEK-2
Journal of the European Ceramic Society, 40 (2020) 8, S. 3057 - 3064
Amsterdam [u.a.] Elsevier Science 2020
10.1016/j.jeurceramsoc.2020.03.028
Journal Article
Methods and Concepts for Material Development
Published on 2020-03-17. Available in OpenAccess from 2022-03-17.
Published on 2020-03-17. Available in OpenAccess from 2022-03-17.
Please use the identifier: http://dx.doi.org/10.1016/j.jeurceramsoc.2020.03.028 in citations.
Please use the identifier: http://hdl.handle.net/2128/24843 in citations.
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245 |a Fracture toughness of single grains and polycrystalline Li7La3Zr2O12 electrolyte material based on a pillar splitting method 
260 |a Amsterdam [u.a.]  |c 2020  |b Elsevier Science 
520 |a In the present study an advanced pillar splitting method is used to determine the fracture toughness of a garnet-type Li7La3Zr2O12 (LLZO) electrolyte. The obtained results are compared to data derived on the basis of conventional Vickers indentation. Furthermore, potential micro-pillar size effects are investigated. The estimated fracture toughness values for single grains and polycrystalline LLZO material obtained via both methods are in good agreement, yielding ∼ 1 MPa m0.5, hence the data indicate that LLZO exhibits relatively low fracture toughness and has a brittle behavior. 
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