Microstructures and interfaces in directionally solidified oxide–oxide eutectics

Creep behavior and related structural defects in Al2O3–Ln2O3 (ZrO2) directionally solidified eutectics (Ln=Gd, Er, Y)

“…17,18 These directions and the crystallographic orientation relationships between phases, for the studied systems, were previously reported. 16 Orientations of specimen before creep were controlled, on large areas (150 × 150 m 2 ), by EBSD spectroscopy and were also locally verified by TEM on transverse section platelets examined after creep.…”

Microstructures, crystallography of interfaces, and creep behavior of melt-growth composites

“…These perfectly aligned lattices are related by orientation relationships which are unique in most systems and produce well-defined interface planes corresponding to dense atomic arrangements in the component phases. [8][9][10][11] Contrarily to these aligned microstructures, interconnected microstructures, shown in the previous figures, display a very isotropic morphology. However, electron diffraction studies performed on thin plates cut perpendicularly to the rod axes reveal growth directions also corresponding to well-defined crystallographic directions.…”

Crystallographic texture in Al2O3–ZrO2 (Y2O3) directionally solidified eutectics

“…[5][6][7][8] In the case of X-ray diffraction, preferred orientation was determined by comparison of the diffractograms acquired at several orientations of the eutectics in Bragg-Brentano geometry with those obtained from the powder precursors. Only Starostin et al studied the texture of Al 2 O 3 -ZrO 2 by means of pole figure analysis.…”