Figure 15.

Structure of the Al₁₁Ce₃/Al interface within the eutectic during early stages of growth: (a) TEM bright field image with the marked growth direction; (b) HRTEM image of the area marked in (a) showing a change in coherency during growth of eutectic phases; FFT patterns from the regions marked in (b) for Al (A), Al₁₁Ce₃/Al interface (B) and Al₁₁Ce₃ (C). The orientation relationship is close to $\left[0 0 1\right]$_Al ║ $\left[\overline{1} 1 1\right]$_Al11Ce3 and $(0 4 \overline{4})$_Al ║ $(\overline{2} 0 0)$_Al11Ce3. Alloy: Al–5Ce.