Fig. 3: Electron backscatter diffraction and theoretical crystallographic orientation data.
a, b Raw pole figures for equivalent poles \(\{001\}\) and \(\{11\overline{12}\}\) of tetragonal ZrO2 in oxide region 1 (a) and 2 (b). c Raw pole figures of monoclinic ZrO2 for equivalent poles \(\{111\}\), \(\{10\bar{6}\}\), \(\{001\}\) and \(\{10\bar{1}\}\) in oxide region 1. Denoted with pink disks and blue crosses are possible theoretical orientation relationships \(\{111\} < 10\bar{1}{ > }_{{{{{{\bf{m}}}}}}-{{{{{\bf{Z}}}}}}{{{{{\bf{r}}}}}}{{{{{{\bf{O}}}}}}}_{2}}||\{101\} < 11\bar{2}{ > }_{{{{{{\bf{t}}}}}}-{{{{{\bf{Z}}}}}}{{{{{\bf{r}}}}}}{{{{{{\bf{O}}}}}}}_{2}}||\{0002\} < 11\bar{2}0{ > }_{{{{{{\bf{Z}}}}}}{{{{{\bf{r}}}}}}}\) and \(\{111\} < 10\bar{1}{ > }_{{{{{{\bf{m}}}}}}-{{{{{\bf{Z}}}}}}{{{{{\bf{r}}}}}}{{{{{{\bf{O}}}}}}}_{2}}||\{0002\} < 11\bar{2}0{ > }_{{{{{{\bf{Z}}}}}}{{{{{\bf{r}}}}}}}\), respectively. d Raw pole figures for equivalent poles \(\{111\}\), \(\{001\}\), \(\{11\bar{2}\}\) and \(\{31\bar{2}\}\) of monoclinic ZrO2 in oxide region 2. Denoted with orange disks and red crosses are the major and minor theoretical orientation relationships \(\{11\bar{2}\} < 111{ > }_{{{{{{\bf{m}}}}}}-{{{{{\bf{Z}}}}}}{{{{{\bf{r}}}}}}{{{{{{\bf{O}}}}}}}_{2}}||\{0002\} < 1\bar{1}00{ > }_{{{{{{\bf{Z}}}}}}{{{{{\bf{r}}}}}}}\) and \(\{31\bar{2}\} < 111{ > }_{{{{{{\bf{m}}}}}}-{{{{{\bf{Z}}}}}}{{{{{\bf{r}}}}}}{{{{{{\bf{O}}}}}}}_{2}}||\{0002\} < 1\bar{1}00{ > }_{{{{{{\bf{Z}}}}}}{{{{{\bf{r}}}}}}}\). All contoured pole figured are normalised to multiples of a random distribution (MRD) and oriented to be consistent with the EBSD map in Fig. 1 with TD || x axis, RD || y axis and ND || z axis.
