Ali, AhmedAhmed, , MHassen, , A2019-11-232019-11-232017Cited References in Web of Science Core Collection: 321478-6435https://www.tandfonline.com/doi/abs/10.1080/14786435.2016.1245882Accession Number: WOS:000392596700002Both 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.enOctober University for Lead-free materialscharacterisationferroelectricityPIEZOELECTRIC PROPERTIEShardness and compressive strengthdielectric propertiesArticle