| Revista: | Materials research |
| Base de datos: | PERIÓDICA |
| Número de sistema: | 000312706 |
| ISSN: | 1516-1439 |
| Autores: | Lente, Manuel Henrique1 Zanin, Alberto Luis Vasiljevic, Jovan Santos, Ivair Aparecido dos Eiras, Jose Antonio Garcia, Ducinei |
| Instituciones: | 1Universidade Federal de Sao Carlos, Departamento de Fisica, Sao Carlos, Sao Paulo. Brasil |
| Año: | 2004 |
| Periodo: | Abr-Jun |
| Volumen: | 7 |
| Número: | 2 |
| Paginación: | 369-372 |
| País: | Brasil |
| Idioma: | Inglés |
| Tipo de documento: | Nota breve o noticia |
| Enfoque: | Experimental |
| Resumen en inglés | In this work, the thermal stability of piezoelectric constants of PMN-PT ceramics in the tetragonal and rhombohedral phases were investigated in a wide range of temperatures. The results showed that the tetragonal PMN-PT presented higher thermal stability and, consequently, the temperature coefficients for the piezoelectric constants were approximately zero. This result revealed to be much better than that commonly found for PZT ceramics. Although the rhombohedral PMN-PT presented a slight lower thermal stability, the values found for the coupling factor were significantly higher than the tetragonal composition |
| Disciplinas: | Ingeniería |
| Palabras clave: | Ingeniería de materiales, Ingeniería mecánica, Plomo, Cerámica, Piezoelectricidad, Temperatura, Estabilidad térmica |
| Keyword: | Engineering, Materials engineering, Mechanical engineering, Lead, Ceramics, Piezoelectricity, Temperature, Thermal stability |
| Texto completo: | Texto completo (Ver HTML) |
