Microstructure and dielectric properties of CaCu3Ti4O12 ceramic

CaCu3Ti4O12 (CCTO) was prepared by the solid state technique. The sample was calcined at 900 °C/12 h and sintered at 1050 °C/24 h, then subjected to XRD to ensure CCTO formation. The microstructure was observed by SEM. XRD results identified both samples as single phase CCTO, whereas the microstru...

Full description

Saved in:
Bibliographic Details
Main Authors: Mohamed, Julie J., Hutagalung, Sabar D., Ain, M. Fadzil, Deraman, Karim, Ahmad, Zainal A.
Format: Article
Published: Elservier 2007
Subjects:
Online Access:http://eprints.utm.my/6717/
http://dx.doi.org/10.1016/j.matlet.2006.07.192
Tags: Add Tag
No Tags, Be the first to tag this record!
_version_ 1845471679428427776
author Mohamed, Julie J.
Hutagalung, Sabar D.
Ain, M. Fadzil
Deraman, Karim
Ahmad, Zainal A.
author_facet Mohamed, Julie J.
Hutagalung, Sabar D.
Ain, M. Fadzil
Deraman, Karim
Ahmad, Zainal A.
author_sort Mohamed, Julie J.
building UTM Library
collection Institutional Repository
content_provider Universiti Teknologi Malaysia
content_source UTM Institutional Repository
continent Asia
country Malaysia
description CaCu3Ti4O12 (CCTO) was prepared by the solid state technique. The sample was calcined at 900 °C/12 h and sintered at 1050 °C/24 h, then subjected to XRD to ensure CCTO formation. The microstructure was observed by SEM. XRD results identified both samples as single phase CCTO, whereas the microstructure shows abnormal grain growth and large pores. Sintering was studied in the temperature range of 950–1050 °C for 3–12 h. Increasing sintering temperature enhances the density and secondary formation of Cu2O. A clear grain boundary and dense microstructure were observed. The results show that the sample sintered at 1040 °C/10 h yields a clearly uniform grain size with the highest εr (33,210)
format Article
id my.utm.eprints-6717
institution Universiti Teknologi Malaysia
publishDate 2007
publisher Elservier
record_format eprints
spelling my.utm.eprints-67172008-10-29T09:09:55Z http://eprints.utm.my/6717/ Microstructure and dielectric properties of CaCu3Ti4O12 ceramic Mohamed, Julie J. Hutagalung, Sabar D. Ain, M. Fadzil Deraman, Karim Ahmad, Zainal A. TJ Mechanical engineering and machinery QC Physics CaCu3Ti4O12 (CCTO) was prepared by the solid state technique. The sample was calcined at 900 °C/12 h and sintered at 1050 °C/24 h, then subjected to XRD to ensure CCTO formation. The microstructure was observed by SEM. XRD results identified both samples as single phase CCTO, whereas the microstructure shows abnormal grain growth and large pores. Sintering was studied in the temperature range of 950–1050 °C for 3–12 h. Increasing sintering temperature enhances the density and secondary formation of Cu2O. A clear grain boundary and dense microstructure were observed. The results show that the sample sintered at 1040 °C/10 h yields a clearly uniform grain size with the highest εr (33,210) Elservier 2007-04 Article PeerReviewed Mohamed, Julie J. and Hutagalung, Sabar D. and Ain, M. Fadzil and Deraman, Karim and Ahmad, Zainal A. (2007) Microstructure and dielectric properties of CaCu3Ti4O12 ceramic. Material Letters, 61 (8-9). pp. 1835-1838. http://dx.doi.org/10.1016/j.matlet.2006.07.192 10.1016/j.matlet.2006.07.192
spellingShingle TJ Mechanical engineering and machinery
QC Physics
Mohamed, Julie J.
Hutagalung, Sabar D.
Ain, M. Fadzil
Deraman, Karim
Ahmad, Zainal A.
Microstructure and dielectric properties of CaCu3Ti4O12 ceramic
title Microstructure and dielectric properties of CaCu3Ti4O12 ceramic
title_full Microstructure and dielectric properties of CaCu3Ti4O12 ceramic
title_fullStr Microstructure and dielectric properties of CaCu3Ti4O12 ceramic
title_full_unstemmed Microstructure and dielectric properties of CaCu3Ti4O12 ceramic
title_short Microstructure and dielectric properties of CaCu3Ti4O12 ceramic
title_sort microstructure and dielectric properties of cacu3ti4o12 ceramic
topic TJ Mechanical engineering and machinery
QC Physics
url http://eprints.utm.my/6717/
http://dx.doi.org/10.1016/j.matlet.2006.07.192
url_provider http://eprints.utm.my/