Effect of Li₂O-B₂O₃- SiO₂- Nb₂O₅ glass addition on dielectric and ferroelectric properties of Lithium Niobate ceramics

ABSTRACT

LiNbO₃ has been synthesized by solid state sintering technique. The glass 30Li₂O: 50B₂O₃: 10 Nb₂O₅: 10SiO₂ has been synthesized by conventional quenching technique. Different weight percentage of glass was added into LiNbO₃ ceramics and sintered at different temperatures. The samples were characterized by using X-Ray Diffraction, Density and Scanning Electron Microscope. The dielectric and ferroelectric measurements of these ceramics suggests that the addition of glass has helped in improving its properties. The LiNbO₃ ceramic with 5 wt% glass addition has shown optimum properties among the ceramics prepared.

KEYWORDS:

• LiNbO₃ ceramics
• dielectric properties
• ferroelectric properties
• sintering aid