Nanoparticles of lead zirconate titanate (PZT) used as ferroelectric ceramics produced by sol-gel acetic-acid route

作者：Garnica Romo M G^*; Paez Sanchez A; Garcia Gonzalez L; Dominguez Lopez I; Diaz Flores L L; Villicana Mendez M

来源：Journal of Sol-Gel Science and Technology, 2015, 74(2): 425-431.

DOI：10.1007/s10971-015-3617-4

• PZT
• Acetic acid
• Sol-gel
• Nanoparticles
• Characterization

The aim of this work was to synthesize lead zirconate titanate (PZT) nanopowder using a modified sol-gel processing method. PZT obtained by a sol-gel route using acetic acid had compositions in the morphotropic phase boundary (Ti/Zr, 53/47 and 45/55). All samples were annealed in air at 800 A degrees C and sintered at temperature above 1,000 A degrees C. Structure and morphology of the samples were determined and characterized by X-ray diffraction, transmission electron microscopy, Raman spectroscopy, dilation, densification and pyroelectric response. Results of X-ray diffraction on samples PZT showed a phase, but not a pyrochlore one, which we determined to be the best pyroelectric response. The samples presented high densification and had appropriate characteristics when used as pyroelectric sensors. Ceramics with a composition of 53/47 had the best pyroelectric response. An average particle size of 20 nm was measured using TEM.

• 出版日期2015-5