Title :
A new grain core-grain shell structure in ferro-nonferroelectric ceramics
Author :
Zhigang, Zhou ; Weilong, Zhang
Abstract :
The grain-core-grain-shell structure, a two-phase grain structure that consists of a ferroelectric core and a nonferroelectric shell, is discussed. Electron microscopy after a temperature change of barium-titanate-calcium-stannate samples exhibiting this structure shows that the ferroelectric domain structure disappears during the phase transition. This is taken as direct proof that the grain-core-grain shell structure is a complex, two-phase, ferroelectric-nonferroelectric structure
Keywords :
ceramics; electron microscopy; ferroelectric materials; ferroelectric transitions; BaTiO3-CaSnO3; electron microscopy; ferro-nonferroelectric ceramics; ferroelectric core; ferroelectric domain structure; ferroelectric-nonferroelectric structure; grain core-grain shell structure; nonferroelectric shell; phase transition; two phase ceramics; two-phase grain structure; Barium; Ceramics; Electron beams; Electron microscopy; Ferroelectric materials; Grain boundaries; Scanning electron microscopy; Structural shells; Temperature; Titanium compounds;
Conference_Titel :
Electronic Components Conference, 1989. Proceedings., 39th
Conference_Location :
Houston, TX
DOI :
10.1109/ECC.1989.77725
