Synthesis and structural ordering of nano-sized Ba3B'Nb2O9 (B'= Ca and Zn) powders

TL;DR

This study explores the synthesis, phase formation, and structural ordering of nano-sized Ba3B'Nb2O9 powders with B' = Ca and Zn, using a modified polymeric precursor method and various characterization techniques.

Contribution

It introduces a modified polymeric precursor route to synthesize single-phase nano-sized Ba3B'Nb2O9 perovskites with detailed structural analysis.

Findings

Single-phase perovskites obtained at 900°C

Nanometric crystallite and particle sizes confirmed

Structural ordering characterized by X-ray and Raman spectroscopy

Abstract

In this work we investigated the phase formation and structural ordering of Ba$_{3}$B$^{'}$Nb$_{2}$O$_{9}$ (B$^{'}$ $=$ Ca and Zn) perovskite powders obtained by a modified polymeric precursor route using X-ray powder diffraction and Raman spectroscopy. We obtained single phase complex perovskites at 900 $^o$C. Williamson-Hall analysis and scanning electron microscopy showed that the powders have crystallites and particles of nanometric size.