| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1645929 | Materials Letters | 2013 | 4 Pages |
This is the first report of fracture toughness analysis of a new ceramic electrolyte (Li7La3Zr2O12). The fracture toughness was measured using an indentation technique and subsurface crack propagation was analyzed using a novel focused ion beam/scanning electron microscope (FIB–SEM) technique. The fracture toughness of polycrystalline Li7La3Zr2O12 was between 0.86–1.63 MPa√m. FIB–SEM analysis of the indentation cracks suggested that both half-penny and Palmquist cracks were present. The fracture toughness of Li7La3Zr2O12 is comparable to other state of the art ceramic electrolytes such as Li0.33La0.57TiO3 and Li1.3Al0.3Ti1.7(PO4)3.
► This is the first fracture analysis of the ceramic electrolyte Li7La3Zr2O12. ► The fracture toughness of Li7La3Zr2O12 ranges between 0.86–1.63 MPa√m. ► Half-penny and Palmquist cracks were observed using FIB/SEM analysis.
