Dielectric and piezoelectric properties of (1-x)(K0.474Na0.474Li0.052)(Nb0.948Sb0.052)O3-xBaMO3(M= Ti or Zr) ceramics
| Autor: | Akinori Kan, Tohru Moriyama, Susumu Takahashi, Hirotaka Ogawa, Daiki Iida |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
010302 applied physics
Phase boundary Materials science Phase transition temperature Analytical chemistry 02 engineering and technology Dielectric 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences Piezoelectricity Ferroelectricity Electronic Optical and Magnetic Materials visual_art 0103 physical sciences visual_art.visual_art_medium Ceramic 0210 nano-technology Powder diffraction |
| Zdroj: | Ferroelectrics. 497:52-61 |
| ISSN: | 1563-5112 0015-0193 |
| DOI: | 10.1080/00150193.2016.1167415 |
| Popis: | The effects of Ba and M (M = Ti or Zr) substitutions for K, Na, Li, Nb and Sb on the ferroelectric and piezoelectric properties of (1-x)(K0.474Na0.474Li0.052)(Nb0.948Sb0.052)O3 (KNLNS)-xBaMO3 ceramics were investigated. X-ray powder diffraction profiles showed the coexistence of rhombohedral-orthorhombic-tetragonal phases, representing a morphotropic phase boundary (MPB), in both (1-x)KNLNS-xBaTiO3 (BT) and (1-x)KNLNS-xBaZrO3 (BZ) ceramics. DSC measurement of (1-x)KNLNS-xBZ ceramics indicated that the Ba and Zr substitutions for A- and B-sites in KNLNS led to the further increase in the dielectric constant in comparison with that of (1-x)KNLNS-xBT ceramics. Moreover, the rhombohedral-orthorhombic phase transition temperature was decreased to room temperature by Ba and Zr substitutions; as a result, a d33 value of 337 pC/N was obtained at 0.94KNLNS-0.06BZ (x = 0.06) ceramic. |
| Databáze: | OpenAIRE |
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