Characterization and synthesis of KTa 0.1Nb 0.9O 3 particles via high temperature mixing method under hydrothermal conditions

Honghui Gu, Kongjun Zhu, Jinhao Qiu, Cao Yang, Hongli Ji

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)

Abstract

KTa 0.1Nb 0.9O 3 (KTN) particles with an orthorhombic perovskite structure have been synthesized via a high temperature mixing method (HTMM) under hydrothermal conditions. The obtained samples were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS), transmission electron microscopy (TEM), selected area electron diffraction (SAED), and high-resolution transmission electron microcopy (HRTEM). The influence of alkaline concentration and solvent composition on the phase structure and morphology of the obtained powders was investigated. The results show that the well-crystallized KTN powders with sizes of 200-500 nm are successfully prepared at temperatures as low as 240 °C when the KOH concentration is 2.0 M and the isopropanol/water (I/W) volume ratio equals to 100/0.

Original languageEnglish
Pages (from-to)558-561
Number of pages4
JournalAdvanced Powder Technology
Volume23
Issue number5
DOIs
Publication statusPublished - 2012 Sep 1
Externally publishedYes

Keywords

  • HTMM
  • KTa Nb O
  • Orthorhombic phase
  • Solvent composition

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Mechanics of Materials

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