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338233 
Journal Article 
Phase Transition, Piezoelectric Properties, and Thermal Stability of (1 -x-y)BiScO[sup]3[/sup]-yBiGaO[sup]3[/sup]-xPbTiO[sup]3[/sup] Ceramics 
Yihang, J; Baoquan, QIN; Yi, Z; Yuzhi, J; Wei, SHI; Qishou, LI; Dingquan, X; Jianguo, ZHU 
2008 
Yes 
Journal of the American Ceramic Society
ISSN: 0002-7820 
91 
9 
2943-2946 
(1-x-y)BiScO[sup]3[/sup]-yBiGaO[sup]3[/sup]-xPbTiO[sup]3[/sup] (BGSPTx/y) piezoelectric ceramics were synthesized using the conventional oxide process. The phase diagram around the ternary morphotropic phase boundary of BGSPTx/y has been determined. It was found that BGSPT0.55/0.19 ceramics possessed a high Curie temperature (T[sup]c[/sup]) of about 502°C, while maintaining their rather high piezoelectric properties of d[sup]33[/sup] = 152 pC/N and d[sup]31[/sup] = -60 pC/N. In addition, BGSPT0.62/0.15 ceramics showed good resistance to thermal depoling up to about 480°C. The excellent thermal stability of BGSPTx/y may allow this material to be used as stable piezoelectric sensors for extreme high-temperature environments. (English) 
Diffraction RX; Stabilité thermique; Propriété thermique; Propriété piézoélectrique; Propriété électrique; Transformation phase; Joint phase morphotropique; Diagramme phase; Céramique piézoélectrique; Fabrication; Plomb Titanate; Titanate; Bismuth Gallium Oxyde Mixte; Bismuth Scandium Oxyde Mixte; Gallium Oxyde; Scandium Oxyde; Bismuth Oxyde; Solution solide; Système ternaire; Céramique électronique; Céramique oxyde; Etude expérimentale; Système BiGaO3 BiScO3 PbTiO3; X ray diffraction; Thermal stability; Thermal properties; Piezoelectric properties; Electrical properties; Phase transformation; Morphotropic phase boundary; Phase diagram; Piezoelectric ceramics; Manufacturing; Lead Titanates; Titanates; Bismuth Gallium Oxides Mixed; Bismuth Scandium Oxides Mixed; Gallium Oxides; Scandium Oxides; Bismuth Oxides; Solid solution; Ternary system; Electroceramics; Oxide ceramics; Experimental study; Difracción RX; Estabilidad térmica; Propiedad térmica; Propiedad piezoeléctrica; Propiedad eléctrica; Transformación fase; Diagrama fase; Cerámica piezoeléctrica; Fabricación; Plomo Titanato; Titanato; Bismuto Galio Óxido Mixto; Bismuto Escandio Óxido Mixto; Galio Óxido; Escandio Óxido; Bismuto Óxido; Solución sólida; Sistema ternario; Cerámica electrónica; Cerámica óxido; Estudio experimental