Publication

Preparation and dielectric properties of Pb(Sc1/2Nb1/2)O-3-PbTiO3 thin films near MPB compositions

Nava Setter, Dragan Damjanovic
2002
Journal Articles

Abstract

The (1-x)Pb(Sc1/2Nb1/2)O-3-xPbTiO(3)(x=0.4, PSNT(60/40)) thin films near the morphotropic phase boundary(MPB) composition were successfully deposited via sol-gel method. Taking the strict controls of processing factors such as the stable and homogeneous precursor solutions, conditions of heat treatment and suitable substrates, it was possible to obtain the pyrochlore-free PSNT(60/40) thin films. The effect of substrate on the microstructure and crystallographic orientation is shown. Dielectric behaviors of sol-gel derived PSNT(60/40) thin films have been investigated.

Official source

https://infoscience.epfl.ch/entities/publication/a3fd72de-1e8f-488c-bb22-0b043f5bd8db

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Nava Setter, Dragan Damjanovic
2002
Journal Articles

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/a3fd72de-1e8f-488c-bb22-0b043f5bd8db

About this result

Related concepts (32)

Lead zirconate titanate

Lead zirconate titanate, also called lead zirconium titanate and commonly abbreviated as PZT, is an inorganic compound with the chemical formula It is a ceramic perovskite material that shows a marked piezoelectric effect, meaning that the compound changes shape when an electric field is applied. It is used in a number of practical applications such as ultrasonic transducers and piezoelectric resonators. It is a white to off-white solid. Lead zirconium titanate was first developed around 1952 at the Tokyo Institute of Technology.

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In physical chemistry and materials science, texture is the distribution of crystallographic orientations of a polycrystalline sample (it is also part of the geological fabric). A sample in which these orientations are fully random is said to have no distinct texture. If the crystallographic orientations are not random, but have some preferred orientation, then the sample has a weak, moderate or strong texture. The degree is dependent on the percentage of crystals having the preferred orientation.

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In electromagnetism, a dielectric (or dielectric medium) is an electrical insulator that can be polarised by an applied electric field. When a dielectric material is placed in an electric field, electric charges do not flow through the material as they do in an electrical conductor, because they have no loosely bound, or free, electrons that may drift through the material, but instead they shift, only slightly, from their average equilibrium positions, causing dielectric polarisation.

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Preparation and dielectric properties of Pb(Sc1/2Nb1/2)O-3-PbTiO3 thin films near MPB compositions

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