Fabrication of Spark Plasma Sintering on Pb(Mg_(1/3)Nb_(2/3))O_3-PbTiO_3 Ceramics Layers Prepared by Tape Casting and TGG Method

摘要

The spark plasma sintering technique was used to fabricate ceramics from Pb(Mg_(1/3)Nb_(2/3))O_3-PbTiO_3 ceramic layers which were prepared by tape casting and TGG method used BaTiO_3 templates as seeds. During heat treatment, epitaxial grain growth occurred on the BaTiO_3 surfaces and formed <001> textured lead magnesium niobate-Lead titanate, Pb(Mg_(1/3)Nb_(2/3))O_3-PbTiO_3 (PMN-32.5PT) ceramics. The phase compositions and microstructure were investigated. The results indicated that this method was an alternative sintering technology to synthesize dense lead-based relaxor ferroelectric ceramics.