INVESTIGADORES
RAMAJO leandro Alfredo
artículos
Título:
Improvement on dielectric and microstructural properties of lead free Bi0.5Na0.5TiO3 ceramics through processing conditions
Autor/es:
ANDREA PRADO-ESPINOSA; JAVIER CAMARGO; LEANDRO RAMAJO; MIRIAM CASTRO
Revista:
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
Editorial:
SPRINGER
Referencias:
Año: 2017 vol. 28 p. 16836 - 16841
ISSN:
0957-4522
Resumen:
In this work, we report the influence of processing conditions on Bi0.5Na0.5TiO3-based lead?free piezoceramics properties, obtained by conventional solid-state reaction method, employing a mechanochemical activation step and comparing two types of calcination steps. All samples were characterized by X-ray diffraction, Scanning Electron Microscopy and impedance Spectroscopy. It was observed that depending on the calcination route a secondary phase is formed. Moreover, the content of the secondary phase is strongly related to the intermediate grinding in the calcined process, and has a significant effect on the final ferroelectric properties
