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Reaction-sintering of lead-free piezoceramic compositions: (0.95 − x)Na0.5K0.5NbO3–0.05LiTaO3– xLiSbO3.
- Source :
- Journal of Materials Science; Sep2008, Vol. 43 Issue 18, p6116-6121, 6p, 2 Diagrams, 2 Charts, 4 Graphs
- Publication Year :
- 2008
-
Abstract
- Incorporation of LiSbO<subscript>3</subscript> into the lead-free piezoceramic composition 0.95Na<subscript>0.5</subscript>K<subscript>0.5</subscript>NbO<subscript>3</subscript>–0.05LiTaO<subscript>3</subscript> produced a change from an orthorhombic to tetragonal crystal system in samples produced by reaction-sintering. The inferred limit of solid solution along the compositional join, (0.95 − x)Na<subscript>0.5</subscript>K<subscript>0.5</subscript>NbO<subscript>3</subscript>–0.05LiTaO<subscript>3</subscript>– xLiSbO<subscript>3</subscript>, occurred at x ~ 0.06. Differential scanning calorimetry indicated broad peaks at temperatures associated with ferroelectric–paraelectric transitions. The transition temperatures decreased with increasing values of x, up to x = 0.06. Microstructures showed secondary grain growth; a slight decrease in grain-size with increasing LiSbO<subscript>3</subscript> modification was identified. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00222461
- Volume :
- 43
- Issue :
- 18
- Database :
- Complementary Index
- Journal :
- Journal of Materials Science
- Publication Type :
- Academic Journal
- Accession number :
- 34573838
- Full Text :
- https://doi.org/10.1007/s10853-008-2940-3