# Structural and dielectric properties of Pb(1-x)(Na0.5Sm0.5)xTiO3 ceramics

## TL;DR

This study investigates how substituting Na0.5Sm0.5 for Pb in PbTiO3 affects its structure and phase transition behavior, revealing reduced tetragonality and a more diffused phase transition with increased substitution.

## Contribution

It provides new insights into the relationship between composition, structure, and phase transition characteristics in PNST ceramics.

## Key findings

- Substitution reduces tetragonality.
- Phase transition shifts to lower temperatures.
- Transition becomes more diffused with increased substitution.

## Abstract

A correlation between structure and vibrational properties related to a ferroelectric to paraelectric phase transition in perovskite Pb(1-x)(Na0.5Sm0.5)xTiO3 (PNST - x) polycrystalline powders is discussed. Substitution leads to reduction of tetragonality which is associated with a shift of the phase transition to lower temperatures. The nature of the phase transition gets diffused with increasing substitution.

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Source: https://tomesphere.com/paper/1702.08194