Figure 5

ZrO2 powder heat-treated at 1400 °C for 6 h: (a) Powder XRD pattern of the sample. ICDD of monoclinic (#36-0420; red bars) and tetragonal ZrO2 (#50-1089; blue bars) are also included. (b) TEM image.

ZrO2 powder heat-treated at 1400 °C for 6 h: (a) Powder XRD pattern of the sample. ICDD of monoclinic (#36-0420; red bars) and tetragonal ZrO2 (#50-1089; blue bars) are also included. (b) TEM image.