Abstract
A unique duplex structure (no grain with an intermediate size) was observed in dense KSr2Nb5O15 (KSN) ferroelectric ceramics, which were prepared by the solid-state reaction method using KSN microcrystalline as raw material. A combined experimental and computer simulation study confirmed that the few crystallographic orientations were existent for KSN grains and the adjacent grains were self-assembled by sharing a common orientation. This spontaneous oriented attachment resulted in the direct mergence of KSN grains, which were responsible for accelerating the bigger grains growth to form a duplex structure. This new understanding of the grain growth process could serve as a viable route to controlling density and grains sizes in the design of ferroelectric ceramics, particularly for textured ceramics.
Original language | English |
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Pages (from-to) | 11055-11063 |
Number of pages | 9 |
Journal | Journal of Materials Science: Materials in Electronics |
Volume | 27 |
Issue number | 10 |
DOIs | |
State | Published - 1 Oct 2016 |