Fabrication of Li0.06(K0.5,Na0.5)0.94NbO3 Nanofibers by Electrospinning Technique

• Published in: Key engineering materials Vol. 798; pp. 218 - 222
• Main Authors: Soitong, Tawat, Wongsaenmai, Supattra
• Format: Journal Article
• Language: English
• Published: Zurich Trans Tech Publications Ltd 01.04.2019
• Subjects: Crystal structure; Cylinders; Electrospinning; Microstructure; Morphology; Nanofibers; Perovskite structure; Perovskites; Roasting; Scanning electron microscopy; Sol-gel processes; Thermodynamic properties; Thermogravimetric analysis; X-ray diffraction; Nanofiber; Lead Free Ceramics; Electrospinning Technique
• ISSN: 1013-9826; 1662-9795; 1662-9795
• DOI: 10.4028/www.scientific.net/KEM.798.218

In this work, Li0.06(K0.5,Na0.5)0.94NbO3(KNNL) nanofibers were synthesized by sol–gel process and electrospinning technique. The thermal behaviour ofelectrospun fibers was characterized by thermogravimetric analysis (TG) to obtain the calcination temperature range. The structural phase formation and microstructure were characterized by X-ray diffraction technique (XRD) and scanning electron microscopy (SEM), respectively. The crystal structure was identified by XRD as a single-phase perovskite structure, with orthorhombic symmetry. The microstructure shows that the diameters are in the range of 80–160 nm. The electrospun fibers were calcined from 500°C to 900°C and observed the fiber morphology. With increasing calcination temperature, the fiber diameters decreased until the temperature up to 900 °C the morphology change from cylinder to square or rectangular shape grains.