skip to main content

SciTech ConnectSciTech Connect

Title: Dielectric properties of novel composites prepared with few layered graphene (FLG)-lithium triniobate (LiNb{sub 3}O{sub 8})

Lithium triniobate (LiNb{sub 3}O{sub 8}) has been prepared using microwave assisted combustion synthesis at a low temperature of 400 °C. Graphite oxide is synthesized using Hummers method and thereafter it is thermally exfoliated at 500 and 700 °C to obtain two samples of Few Layered Graphene (FLG). Then, FLG-LiNb{sub 3}O{sub 8} composites prepared through a simple ultra-sonication assisted solution mixing process. The obtained samples are named as FLN5 and FLN7 based on the temperature used to obtain FLG. Low frequency dielectric measurements are recorded for both the samples and the measured dielectric constant is observed to be more for FLN5 (250 at 60 Hz) than FLN7 (115 at 60 Hz) whilst the dielectric loss is less in case of FLN5 (1.525 at 60 Hz). The enhancement in dielectric properties for FLN5 is explained in terms of polarization in FLG-LiNb{sub 3}O{sub 8} composites.
Authors:
;  [1] ; ;  [2]
  1. Advanced Centre of Research in High Energy Materials, University of Hyderabad, Hyderabad 500046, Telangana State (India)
  2. School of Engineering Sciences and Technology, University of Hyderabad, Hyderabad 500046, Telangana State (India)
Publication Date:
OSTI Identifier:
22488802
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1675; Journal Issue: 1; Conference: AMRP-2015: 4. national conference on advanced materials and radiation physics, Longowal (India), 13-14 Mar 2015; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; COMPOSITE MATERIALS; DIELECTRIC MATERIALS; GRAPHENE; GRAPHITE; LITHIUM COMPOUNDS; MICROWAVE RADIATION; NIOBATES; PERMITTIVITY; POLARIZATION; RELAXATION LOSSES; SYNTHESIS; TEMPERATURE DEPENDENCE; ULTRASONIC WAVES