The effect of some transition metal oxides on the physical properties of K0.5Na0.5Nb0.95Ta0.05O3 ceramics
Loading...
Date
2017
Authors
Journal Title
Journal ISSN
Volume Title
Type
Article
Publisher
TAYLOR & FRANCIS LTD
Series Info
PHILOSOPHICAL MAGAZINE;Volume: 97 Issue: 2 Pages: 95-107 Part:
Doi
Scientific Journal Rankings
Abstract
Both K0.5Na0.5Nb0.95Ta0.05O3 (KNNTO) and (K0.5Na0.5Nb0.95Ta0.05O3)(0.99) - M-0.01, M = Co3O4 and Mn2O3 (M/KNNTO) Ferromagnetic behaviour was observed for some M/KNNTO compounds. The hardness and compressive strength of all investigated samples are given. Comparisons with similar materials are discussed. Ceramics were synthesised using a solid-state reaction method. X-ray diffraction patterns of all samples revealed that the crystal structure is orthorhombic. Field-emission scanning electron microscopy was performed. Polarisation hysteresis curves indicated a disruption of ferroelectric order with the addition of M into KNNTO ceramics. The dielectric properties of the investigated ceramics have been studied as a function of frequency and temperature.
Description
Accession Number: WOS:000392596700002
Keywords
October University for Lead-free materials, characterisation, ferroelectricity, PIEZOELECTRIC PROPERTIES, hardness and compressive strength, dielectric properties
Citation
Cited References in Web of Science Core Collection: 32