Publication

Phase transition behaviors of (1-x)Pb(Yb1/2Nb1/2) O-3-xBa(Yb1/2Nb1/2)O-3 ceramics

Nava Setter
2001
Journal Articles

Abstract

The phase transition behaviors of (1-x)Pb(Yb1/2Nb1/2)O3-xBa(Yb1/2Nb1/2)O-3 (PBYN) solid solution system (0 less than or equal tox less than or equal to0.30) have been investigated by X-ray diffraction, permittivity and E-P hysteresis loop measurements. In the solid solution, for x less than or equal to0.10, the transition shows a normal first-order paraelectric (PE)-antiferroelectric (AFE) behavior and its AFE crystal structure is orthorhombic. The transition temperature gradually decreases with the increasing Ba2+ concentration. On the composition range 0.16 less than or equal tox less than or equal to0.30, a typical relaxor behavior is displayed. The low temperature crystal structure is pseudocubic in this composition range. (C) 2001 Published by Elsevier Science Ltd.

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https://infoscience.epfl.ch/entities/publication/e2606984-4766-42a0-a7ea-bb3a3db1a06a

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Nava Setter
2001
Journal Articles

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/e2606984-4766-42a0-a7ea-bb3a3db1a06a

About this result

Related concepts (32)

Phase transition

In chemistry, thermodynamics, and other related fields, a phase transition (or phase change) is the physical process of transition between one state of a medium and another. Commonly the term is used to refer to changes among the basic states of matter: solid, liquid, and gas, and in rare cases, plasma. A phase of a thermodynamic system and the states of matter have uniform physical properties. During a phase transition of a given medium, certain properties of the medium change as a result of the change of external conditions, such as temperature or pressure.

Glass transition

The glass–liquid transition, or glass transition, is the gradual and reversible transition in amorphous materials (or in amorphous regions within semicrystalline materials) from a hard and relatively brittle "glassy" state into a viscous or rubbery state as the temperature is increased. An amorphous solid that exhibits a glass transition is called a glass. The reverse transition, achieved by supercooling a viscous liquid into the glass state, is called vitrification.

Solid solution

A solid solution, a term popularly used for metals, is a homogeneous mixture of two different kinds of atoms in solid state and having a single crystal structure. Many examples can be found in metallurgy, geology, and solid-state chemistry. The word "solution" is used to describe the intimate mixing of components at the atomic level and distinguishes these homogeneous materials from physical mixtures of components. Two terms are mainly associated with solid solutions – solvents and solutes, depending on the relative abundance of the atomic species.

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Phase transition behaviors of (1-x)Pb(Yb1/2Nb1/2) O-3-xBa(Yb1/2Nb1/2)O-3 ceramics

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