Synthesis and characterization of Ca-Less CCTO dielectric electroceramic materials

Julie Juliewatty Mohamed, Wan Nor Dini Wan Nor Azli Jasmi, Noruzaman Daud, Teo Pao Ter, Mohamad Johari Abu, Mohd Fariz Ab Rahman, Akhmad Herman Yuwono

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

The effect of Ca-less content in CaCu3Ti4O12 (CCTO) properties were studied. The CCTO ceramic was prepared by using solid state method with stoichiometric formula Ca1-xCu3Ti4O12-3x. The Ca content were decreased with five different concentrations which are x=0.00, 0.01, 0.02, 0.03, 0.05 and 0.10 respectively. The XRD results show single phase formation for all sintered CCTO and a small phase of CuO appeared when Ca content decreased. Apart from that, SEM micrograph for the compacted pellets show approximately the same size for all samples unless sample CCTO5 shows large particles which contribute to the segregation of Cu element. The dielectric behavior of CCTO was observed in a frequency range of 1 Hz - 10 MHz. The optimum dielectric constant was obtained at CCT05 with the highest ϵ0 (5.5 × 103) and lowest dielectric loss (tan σ) with a value of 0.5. This could be related to the less Ca content in which contribute to the higher Ca and oxygen vacancies in CCTO electro-ceramic.

Original languageEnglish
Title of host publicationInternational Conference on Bioengineering and Technology, IConBET2021
EditorsMardawani Mohamad, Muhammad Azwadi Sulaiman, Wan Hasnidah Wan Osman, Rosmawan Mohammad, Mohd Hazim Mohamad Amini, Seng Kew Wee, Noor Fazliani Shoparwe, Jia Geng Boon, Yee Ching Wong, Sarizam Mamat
PublisherAmerican Institute of Physics Inc.
ISBN (Electronic)9780735441934
DOIs
Publication statusPublished - 9 Jun 2022
Event2021 International Conference on Bioengineering and Technology, IConBET2021 - Kelantan, Virtual, Malaysia
Duration: 24 May 202225 May 2022

Publication series

NameAIP Conference Proceedings
Volume2454
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

Conference2021 International Conference on Bioengineering and Technology, IConBET2021
Country/TerritoryMalaysia
CityKelantan, Virtual
Period24/05/2225/05/22

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