Surface Domain Reorientation Produced by Abrasion and Annealing of Polycrystalline BaTiO 3
1972; Wiley; Volume: 55; Issue: 7 Linguagem: Inglês
10.1111/j.1151-2916.1972.tb11304.x
ISSN1551-2916
Autores Tópico(s)Force Microscopy Techniques and Applications
ResumoThe abraded surface of polycrystalline BaTiO 3 was examined by X‐ray diffraction methods. The distorted layer produced by abrasion on 320‐grade SiC consists of (1) a region extending to the bottom of the deepest scratches in which the domains tend to be oriented with their c axes perpendicular to the surface and (2) a transition layer below this in which the orientation varies with depth. The orientation changes little on annealing until recrystallization begins at #900°C; however, annealing at 1100° to 1400°C produces an α‐domain reorientation. Possible explanations for these effects are discussed in terms of dislocations introduced by deformation during abrasion and grain size in the recrystallized surface layer.
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