|About this Abstract
||Materials Science & Technology 2011
||MS&T'11 Poster Session
||240 Microwave Sintering of PZT / Fe-Co Nanocomposite Obtained by In Situ Sol-Gel Synthesis
||Claudia Patrícia Fernandez Perdomo, Ducinei Garcia, Ruth H. G. A. Kiminami
|On-Site Speaker (Planned)
||Ruth H. G. A. Kiminami
Microwave sintering is a technique with an enormous potential for the manufacture of ceramic materials with controlled microstructures, providing uniform heating and more homogeneous and controlled grain size distribution than conventional sintering. This paper discusses the effect of ultra rapid microwave-assisted sintering versus conventional sintering on the microstructural and physical characteristics of the particulate composite PZT / Fe-Co in an 80:20 ratio, prepared in situ via sol-gel synthesis to obtain a nanostructured system with a highly homogeneous two-phase distribution. The samples sintered were characterized microstructurally by scanning electron microscopy (SEM) and X-ray diffraction (XRD) and their apparent density and porosity were measured by the Archimedes method. These characterizations revealed that the two methods of synthesis yielded the particulate composite, and that the grains of the ferromagnetic phase were distributed evenly within the ferroelectric matrix. However, the microwave-sintered samples retained a more homogeneous average grain size than the conventionally sintered samples.