Etching Figures in Neodymium Gallate and Yttrium Aluminate Crystals

Study on cracking and low-angle grain boundary defects in YAlO3 crystal

“…As seen in Fig. 1, the etch pits are rhombus, which is the typical etch morphology of a Ce:YAP (010) face [18]. In this face, a regularly spaced row of etch pits formed at the boundary, the so-called dislocation low-angle grain boundary, was observed using a Letiz optical microscope and SEM.…”