Development, Characterization, Sintering, Dielectric and Optical Properties of NdBa2ZrO5·5 Nanocrystals

Nanocrystalline NdBa2ZrO5 ·5 has been successfully synthesized through a single step auto-ignition combustion route for the first time. X-ray diffraction and Fourier transform infrared spectroscopy revealed that the combustion product is phase pure and has an ordered cubic perovskite structure. The...

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Main Authors:	Rajan, Jose, Kumar, V. Ratheesh, Wariar, P. R. S., Pazhani, R., Thomas, J. K., Koshy, J.
Format:	Article
Language:	English
Published:	Springer-Verlag 2012
Subjects:	QD Chemistry
Online Access:	http://umpir.ump.edu.my/id/eprint/6448/ http://umpir.ump.edu.my/id/eprint/6448/ http://umpir.ump.edu.my/id/eprint/6448/ http://umpir.ump.edu.my/id/eprint/6448/1/Development%2C_characterization%2C_sintering%2C_dielectric_and_optical_properties_of_NdBa2ZrO5%C2%B75_nanocrystals.pdf

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recordtype	eprints
spelling	ump-64482018-02-19T07:38:40Z http://umpir.ump.edu.my/id/eprint/6448/ Development, Characterization, Sintering, Dielectric and Optical Properties of NdBa2ZrO5·5 Nanocrystals Rajan, Jose Kumar, V. Ratheesh Wariar, P. R. S. Pazhani, R. Thomas, J. K. Koshy, J. QD Chemistry Nanocrystalline NdBa2ZrO5 ·5 has been successfully synthesized through a single step auto-ignition combustion route for the first time. X-ray diffraction and Fourier transform infrared spectroscopy revealed that the combustion product is phase pure and has an ordered cubic perovskite structure. The phase transitions and thermal stability of the nanopowder were investigated by differential thermal and thermogravimetric analyses. Transmission electron microscopy results indicated that the particle sizes are 20–30 nm. Selected area electron diffraction pattern has shown that as-prepared powder is polycrystalline in nature. The optical absorption spectra analysis confirmed that the material falls to the semiconducting range with a bandgap of ~3 ·69 eV and therefore, could be used as transparent wide bandgap semiconductor. The relative density of the sintered sample is ~96% at 1510 °C for 2 h. The surface morphology of the sintered pellet has been studied by scanning electron microscopy and the average grain size observed is ~0·7 μm. Dielectric constant (ε r) of NdBa2ZrO5·5 at 5 MHz is 29·6 and loss factor (tan δ) is 4 ×10 − 2 at room temperature. Springer-Verlag 2012 Article PeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/6448/1/Development%2C_characterization%2C_sintering%2C_dielectric_and_optical_properties_of_NdBa2ZrO5%C2%B75_nanocrystals.pdf Rajan, Jose and Kumar, V. Ratheesh and Wariar, P. R. S. and Pazhani, R. and Thomas, J. K. and Koshy, J. (2012) Development, Characterization, Sintering, Dielectric and Optical Properties of NdBa2ZrO5·5 Nanocrystals. Bulletin of Materials Science, 35 (7). pp. 1039-1045. ISSN 0250-4707 (print); 0973-7669 (online) http://dx.doi.org/10.1007/s12034-012-0407-2 DOI: 10.1007/s12034-012-0407-2
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Malaysia Pahang
building	UMP Institutional Repository
collection	Online Access
language	English
topic	QD Chemistry
spellingShingle	QD Chemistry Rajan, Jose Kumar, V. Ratheesh Wariar, P. R. S. Pazhani, R. Thomas, J. K. Koshy, J. Development, Characterization, Sintering, Dielectric and Optical Properties of NdBa2ZrO5·5 Nanocrystals
description	Nanocrystalline NdBa2ZrO5 ·5 has been successfully synthesized through a single step auto-ignition combustion route for the first time. X-ray diffraction and Fourier transform infrared spectroscopy revealed that the combustion product is phase pure and has an ordered cubic perovskite structure. The phase transitions and thermal stability of the nanopowder were investigated by differential thermal and thermogravimetric analyses. Transmission electron microscopy results indicated that the particle sizes are 20–30 nm. Selected area electron diffraction pattern has shown that as-prepared powder is polycrystalline in nature. The optical absorption spectra analysis confirmed that the material falls to the semiconducting range with a bandgap of ~3 ·69 eV and therefore, could be used as transparent wide bandgap semiconductor. The relative density of the sintered sample is ~96% at 1510 °C for 2 h. The surface morphology of the sintered pellet has been studied by scanning electron microscopy and the average grain size observed is ~0·7 μm. Dielectric constant (ε r) of NdBa2ZrO5·5 at 5 MHz is 29·6 and loss factor (tan δ) is 4 ×10 − 2 at room temperature.
format	Article
author	Rajan, Jose Kumar, V. Ratheesh Wariar, P. R. S. Pazhani, R. Thomas, J. K. Koshy, J.
author_facet	Rajan, Jose Kumar, V. Ratheesh Wariar, P. R. S. Pazhani, R. Thomas, J. K. Koshy, J.
author_sort	Rajan, Jose
title	Development, Characterization, Sintering, Dielectric and Optical Properties of NdBa2ZrO5·5 Nanocrystals
title_short	Development, Characterization, Sintering, Dielectric and Optical Properties of NdBa2ZrO5·5 Nanocrystals
title_full	Development, Characterization, Sintering, Dielectric and Optical Properties of NdBa2ZrO5·5 Nanocrystals
title_fullStr	Development, Characterization, Sintering, Dielectric and Optical Properties of NdBa2ZrO5·5 Nanocrystals
title_full_unstemmed	Development, Characterization, Sintering, Dielectric and Optical Properties of NdBa2ZrO5·5 Nanocrystals
title_sort	development, characterization, sintering, dielectric and optical properties of ndba2zro5·5 nanocrystals
publisher	Springer-Verlag
publishDate	2012
url	http://umpir.ump.edu.my/id/eprint/6448/ http://umpir.ump.edu.my/id/eprint/6448/ http://umpir.ump.edu.my/id/eprint/6448/ http://umpir.ump.edu.my/id/eprint/6448/1/Development%2C_characterization%2C_sintering%2C_dielectric_and_optical_properties_of_NdBa2ZrO5%C2%B75_nanocrystals.pdf
first_indexed	2023-09-18T22:02:11Z
last_indexed	2023-09-18T22:02:11Z
_version_	1777414472482160640

Development, Characterization, Sintering, Dielectric and Optical Properties of NdBa2ZrO5·5 Nanocrystals

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