Abstract
KNbO3 is a perovskite ferroelectric ceramic material with important electro optical and non linear optical properties. It can be used in an optical parametric oscillator, secondary harmonic generator and photo refractive holographic storage devices. Its macroscopic properties depend on a number of inter-related features such as crystal structure, domain structure, defects and impurity content. KNbO3 has four known solid phases with decreasing symmetry with temperature: Cubic Tetragonal Orthorhombic Monoclinic. The paraelectric to ferroelectric transition occurs during the cubic to tetragonal transformation. The dielectric properties of KNbO3 have been extensively studied and related to the various phase transformations. The aim of this investigation is to study the orthorhombic to tetragonal phase transformations using TEM.Thin slices were cut from a flux grown crystal and mechanically polished to a thickness of 100 μm with a 1 μm surface finish using diamond paste and isopropyl alcohol as the lubricant.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: Proceedings, annual meeting, Electron Microscopy Society of America
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
