SPARK PLASMA SINTERING OF NANO-COMPOSITES PZT-Fe2CoO4

Reference	Presenter	Authors (Institution)	Abstract
12-025	Claudia Fernandez Perdomo	Perdomo, C.F.(Universidade Federal de São Carlos); Do nascimento, W.J.(Federal University of Paraná); Eiras, J.A.(Universidade Federal de São Carlos); Garcia, D.(Universidade Federal de São Carlos); Kiminami, R.H.(Universidade Federal de São Carlos);	Nano-composites 0.8PbZrTiO3-0.2Fe2CoO4 (PZT-FCO) were synthetized by in situ sol-gel co-synthesis and sintered using the spark plasma technique (SPS) in order to obtain: grain growth control, dense ceramics and to evaluate this new nanostructure and effect on the physical properties of this material. The characterizations revealed that the new in situ sol-gel co-synthesis method was successful in producing highly homogeneous nanopowders without secondary phases. After spark plasma sintering, the samples showed uniform distribution of the cobalt ferrite phase in the PZT phase, with an average nanograin size of about 200 nm, while the same material sintered conventionally had an average cobalt ferrite grain size of about 6 ?m. Innovative PZT/Fe2CoO4 nanostructures were obtained with high electrical resistivity, low dielectric loss and magnetoelectric response.
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