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Dielectric properties of Nb-doped CaCu3Ti4O12 electroceramics measured at high frequencies

In this work, Nb dopant was introduced into CaCu3Ti4O12 (CCTO) electroceramic in order to improve the dielectric properties. The CCTO electroceramic was prepared using the solid state reaction method. An X-ray diffractometer (XRD) analysis proved the formation of a single CCTO phase after sintering...

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Main Authors: Sulaiman, Muhammad Azwadi, Hutagalung, Sabar D., Ain, Mohd Fadzil, Ahmad, Zainal A.
Format: Non-Indexed Article
Language:English
Published: 2010
Subjects:
Q Science (General)
Online Access:http://discol.umk.edu.my/id/eprint/7861/1/Sulaiman%20et%20al.%20-%202010%20-%20Dielectric%20properties%20of%20Nb-doped%20CaCu3Ti4O12%20electroceramics%20measured%20at%20high%20frequencies.pdf
http://discol.umk.edu.my/id/eprint/7861/
http://dx.doi.org/10.1016/j.jallcom.2009.12.137
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spelling my.umk.eprints.78612022-05-23T10:23:32Z http://discol.umk.edu.my/id/eprint/7861/ Dielectric properties of Nb-doped CaCu3Ti4O12 electroceramics measured at high frequencies Sulaiman, Muhammad Azwadi Hutagalung, Sabar D. Ain, Mohd Fadzil Ahmad, Zainal A. Q Science (General) In this work, Nb dopant was introduced into CaCu3Ti4O12 (CCTO) electroceramic in order to improve the dielectric properties. The CCTO electroceramic was prepared using the solid state reaction method. An X-ray diffractometer (XRD) analysis proved the formation of a single CCTO phase after sintering at 1040◦C for 10h. Abnormal grain growth was observed in undoped CCTO and 1mol% Nb-doped CCTO. Normal grain growth was produced at Nb dopant levels higher than 3mol%. Dielectric properties were measured at a frequency range of 1MHzto 1GHz. It was found that CCTO doped with 1mol% Nb gave the highest dielectric constant of 18,000 at 1MHz. Meanwhile, the lowest dielectric loss (0.31) at 1MHz was given by CCTO doped with 10mol% Nb. The dielectric constant between 10MHz and 1GHz was almost stable with values at around 500. 2010 Non-Indexed Article PeerReviewed pdf en http://discol.umk.edu.my/id/eprint/7861/1/Sulaiman%20et%20al.%20-%202010%20-%20Dielectric%20properties%20of%20Nb-doped%20CaCu3Ti4O12%20electroceramics%20measured%20at%20high%20frequencies.pdf Sulaiman, Muhammad Azwadi and Hutagalung, Sabar D. and Ain, Mohd Fadzil and Ahmad, Zainal A. (2010) Dielectric properties of Nb-doped CaCu3Ti4O12 electroceramics measured at high frequencies. Journal of Alloys and Compounds, 493 (1-2). pp. 486-492. ISSN 09258388 http://dx.doi.org/10.1016/j.jallcom.2009.12.137 doi:10.1016/j.jallcom.2009.12.137 doi:10.1016/j.jallcom.2009.12.137
institution Universiti Malaysia Kelantan
building Perpustakaan Universiti Malaysia Kelantan
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Kelantan
content_source UMK Institutional Repository
url_provider http://umkeprints.umk.edu.my/
language English
topic Q Science (General)
spellingShingle Q Science (General)
Sulaiman, Muhammad Azwadi
Hutagalung, Sabar D.
Ain, Mohd Fadzil
Ahmad, Zainal A.
Dielectric properties of Nb-doped CaCu3Ti4O12 electroceramics measured at high frequencies
description In this work, Nb dopant was introduced into CaCu3Ti4O12 (CCTO) electroceramic in order to improve the dielectric properties. The CCTO electroceramic was prepared using the solid state reaction method. An X-ray diffractometer (XRD) analysis proved the formation of a single CCTO phase after sintering at 1040◦C for 10h. Abnormal grain growth was observed in undoped CCTO and 1mol% Nb-doped CCTO. Normal grain growth was produced at Nb dopant levels higher than 3mol%. Dielectric properties were measured at a frequency range of 1MHzto 1GHz. It was found that CCTO doped with 1mol% Nb gave the highest dielectric constant of 18,000 at 1MHz. Meanwhile, the lowest dielectric loss (0.31) at 1MHz was given by CCTO doped with 10mol% Nb. The dielectric constant between 10MHz and 1GHz was almost stable with values at around 500.
format Non-Indexed Article
author Sulaiman, Muhammad Azwadi
Hutagalung, Sabar D.
Ain, Mohd Fadzil
Ahmad, Zainal A.
author_facet Sulaiman, Muhammad Azwadi
Hutagalung, Sabar D.
Ain, Mohd Fadzil
Ahmad, Zainal A.
author_sort Sulaiman, Muhammad Azwadi
title Dielectric properties of Nb-doped CaCu3Ti4O12 electroceramics measured at high frequencies
title_short Dielectric properties of Nb-doped CaCu3Ti4O12 electroceramics measured at high frequencies
title_full Dielectric properties of Nb-doped CaCu3Ti4O12 electroceramics measured at high frequencies
title_fullStr Dielectric properties of Nb-doped CaCu3Ti4O12 electroceramics measured at high frequencies
title_full_unstemmed Dielectric properties of Nb-doped CaCu3Ti4O12 electroceramics measured at high frequencies
title_sort dielectric properties of nb-doped cacu3ti4o12 electroceramics measured at high frequencies
publishDate 2010
url http://discol.umk.edu.my/id/eprint/7861/1/Sulaiman%20et%20al.%20-%202010%20-%20Dielectric%20properties%20of%20Nb-doped%20CaCu3Ti4O12%20electroceramics%20measured%20at%20high%20frequencies.pdf
http://discol.umk.edu.my/id/eprint/7861/
http://dx.doi.org/10.1016/j.jallcom.2009.12.137
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score 13.211869

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