Structure and electrical properties of textured Sr1.85Ca0.15NaNb5O15 ceramics prepared by the reactive templated grain growth

Graded evolution of anisotropic microstructure during sintering from crystal‐oriented powder compact

“…It suggests that the c-axis-oriented grains formed the neck and grew by including particles along the vertical direction, resulting in an anisotropic microstructure with the preferential shrinkage in the vertical direction. 17,26,[28][29][30] These results indicate that the crystallographic characteristics govern the mobility of ions and grain boundary. 26 SBN60 showed large shrinkage along the longitudinal direction of particles in spite of the small amount of necking among particles.…”

“…In SCNN, the preferred direction of grain growth for tungsten-bronze-structured materials is generally along the c-axis. 17,26,[28][29][30] These results indicate that the crystallographic characteristics govern the mobility of ions and grain boundary. To obtain crystal-oriented SCNN ceramics, grain growth in the c-axis direction plays an important role in densification.…”

“…27,28 Some recent studies have already demonstrated their enhanced piezoelectric properties along the c-axis direction. C-axis-oriented SCNN ceramics are multi-functional materials with significant potential as lead-free piezoelectric and optical materials.…”

“…C-axis-oriented SCNN ceramics are multi-functional materials with significant potential as lead-free piezoelectric and optical materials. 27,28 Some recent studies have already demonstrated their enhanced piezoelectric properties along the c-axis direction. 29,30 The crystal system of SCNN includes a tetragonal tungstenbronze structure similar to that of SBN60, making crystaloriented SCNN ceramics appropriate to be used to examine the densification and development of anisotropic microstructures during anisotropic sintering.…”