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Title: Elastic properties of Ca{sub 5-x}A {sub x}Nb{sub 2}TiO{sub 12} (A = Mg, Zn) microwave ceramics

Abstract

Microwave dielectrics in Ca{sub 5-x}A {sub x}Nb{sub 2}TiO{sub 12} (A = Mg, Zn) system have been prepared for different values of x by conventional solid-state ceramic route. The elastic properties of the ceramics were investigated as a function of composition by ultrasonic techniques. X-ray diffraction studies revealed that the ceramics form phase pure compounds for 0 {<=} x {<=} 1 and form mixture phases beyond x = 1. The elastic properties were strongly affected by structural transformations. Magnesium-based compositions have better elastic properties compared with zinc-based system.

Authors:
 [1];  [1];  [2];  [2]
  1. Sophisticated Test and Instrumentation Center, Cochin University of Science and Technology, Cochin 682022 (India)
  2. Regional Research Laboratory, Industrial Estate P.O., Trivandrum 695019 (India)
Publication Date:
OSTI Identifier:
20891673
Resource Type:
Journal Article
Resource Relation:
Journal Name: Materials Research Bulletin; Journal Volume: 41; Journal Issue: 4; Other Information: DOI: 10.1016/j.materresbull.2005.09.030; PII: S0025-5408(05)00368-5; Copyright (c) 2005 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; CALCIUM OXIDES; CERAMICS; DIELECTRIC MATERIALS; ELASTICITY; MAGNESIUM; MICROWAVE RADIATION; NIOBIUM HYDROXIDES; TANTALUM OXIDES; X-RAY DIFFRACTION; ZINC

Citation Formats

George, Vimala, Philip, J., Bijumon, P.V., and Sebastian, M.T. Elastic properties of Ca{sub 5-x}A {sub x}Nb{sub 2}TiO{sub 12} (A = Mg, Zn) microwave ceramics. United States: N. p., 2006. Web. doi:10.1016/j.materresbull.2005.09.030.
George, Vimala, Philip, J., Bijumon, P.V., & Sebastian, M.T. Elastic properties of Ca{sub 5-x}A {sub x}Nb{sub 2}TiO{sub 12} (A = Mg, Zn) microwave ceramics. United States. doi:10.1016/j.materresbull.2005.09.030.
George, Vimala, Philip, J., Bijumon, P.V., and Sebastian, M.T. Thu . "Elastic properties of Ca{sub 5-x}A {sub x}Nb{sub 2}TiO{sub 12} (A = Mg, Zn) microwave ceramics". United States. doi:10.1016/j.materresbull.2005.09.030.
@article{osti_20891673,
title = {Elastic properties of Ca{sub 5-x}A {sub x}Nb{sub 2}TiO{sub 12} (A = Mg, Zn) microwave ceramics},
author = {George, Vimala and Philip, J. and Bijumon, P.V. and Sebastian, M.T.},
abstractNote = {Microwave dielectrics in Ca{sub 5-x}A {sub x}Nb{sub 2}TiO{sub 12} (A = Mg, Zn) system have been prepared for different values of x by conventional solid-state ceramic route. The elastic properties of the ceramics were investigated as a function of composition by ultrasonic techniques. X-ray diffraction studies revealed that the ceramics form phase pure compounds for 0 {<=} x {<=} 1 and form mixture phases beyond x = 1. The elastic properties were strongly affected by structural transformations. Magnesium-based compositions have better elastic properties compared with zinc-based system.},
doi = {10.1016/j.materresbull.2005.09.030},
journal = {Materials Research Bulletin},
number = 4,
volume = 41,
place = {United States},
year = {Thu Apr 13 00:00:00 EDT 2006},
month = {Thu Apr 13 00:00:00 EDT 2006}
}