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Synthesis of sustainable binary calcium monosilicate ceramics from bio-waste: effect of sintering temperature on microstructure and electrical properties

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Main Authors: Khor, S. F., N. H., Jakfar, B., Johar, N. M., S. Adzali, S. N. H., Mohd. Yunus, Cheng, E. M., E. Z., M. Tarmizi, Z., A. Talib
Other Authors: sfkhor@unimap.edu.my
Format: Article
Language:English
Published: Universiti Malaysia Perlis (UniMAP) 2023
Subjects:
Calcium monosilicate
Sintering
Electrical conductivity
Impedance
Online Access:http://dspace.unimap.edu.my:80/xmlui/handle/123456789/78121
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spelling my.unimap-781212023-03-10T03:45:12Z Synthesis of sustainable binary calcium monosilicate ceramics from bio-waste: effect of sintering temperature on microstructure and electrical properties Khor, S. F. N. H., Jakfar B., Johar N. M., S. Adzali S. N. H., Mohd. Yunus Cheng, E. M. E. Z., M. Tarmizi Khor, S. F. Z., A. Talib sfkhor@unimap.edu.my Centre of Excellence for Renewable Energy (CERE), Universiti Malaysia Perlis (UniMAP) Faculty of Electrical Engineering & Technology, Universiti Malaysia Perlis (UniMAP) Faculty of Chemical Engineering & Technology, Universiti Malaysia Perlis (UniMAP) Advanced Communication Engineering, Centre of Excellence (ACE), Universiti Malaysia Perlis (UniMAP) Faculty of Electronic Engineering & Technology, Universiti Malaysia Perlis (UniMAP) Centre of Foundation Studies for Agricultural Science, Universiti Putra Malaysia (UPM) Department of Physics, College of Natural Sciences, Jeonbuk National University 567, Republic of Korea Calcium monosilicate Sintering Electrical conductivity Impedance Link to publisher's homepage at http://ijneam.unimap.edu.my/ This study was conducted to synthesise calcium monosilicate ceramics using rice husks and raw eggshells and investigated the effect of sintering temperature on the physical, microstructure and electrical properties of the final product. The high content of calcium and silicon in eggshells and rice husks, respectively promote the use of waste materials in the production of calcium monosilicates by mixing in a molar ratio 1CaO:1SiO2 and fired at different sintering temperatures for 2 hours with a heating rate of 10°C/min. A good correlation between sintering temperature, structural, microstructure, and electrical properties of calcium silicate was observed. The structural and morphological evolutions were characterised by X-ray diffraction (XRD) and scanning electron microscopy (SEM) equipped with electron dispersive X-ray analysis (EDX). XRD analysis showed that the main crystalline phases of synthesised calcium monosilicate are pseudowollastonite (ICSD 98- 005-2598) at 1250°C, and the phases of SiO2 also exist in different types of minerals. Besides, a small amount of larnite, Ca2SiO4 was traced at 1100°C and 1200°C. Fourier Transforms Infrared (FTIR) spectra showed the presence of characteristic functional groups in the precursor powder. In Nyquist plots, the summit frequency of the dominant arc decreases with increasing sintering temperatures. It may be attributed to the co-effect of the grain size and pore. A larger value of impedance at a lower frequency suggests an essential role of boundaries in governing the electrical properties of the sintered ceramics. As the sintering temperature increases, the microstructure of the sintered samples becomes denser while conductivity performance decreases. This is due to the reduction of particle interfaces and charge transfer. 2023-03-10T03:45:12Z 2023-03-10T03:45:12Z 2023-01 Article International Journal of Nanoelectronics and Materials, vol.16(1), 2023, pages 63-79 1985-5761 (Printed) 1997-4434 (Online) http://dspace.unimap.edu.my:80/xmlui/handle/123456789/78121 http://ijneam.unimap.edu.my en Universiti Malaysia Perlis (UniMAP)
institution Universiti Malaysia Perlis
building UniMAP Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Perlis
content_source UniMAP Library Digital Repository
url_provider http://dspace.unimap.edu.my/
language English
topic Calcium monosilicate
Sintering
Electrical conductivity
Impedance
spellingShingle Calcium monosilicate
Sintering
Electrical conductivity
Impedance
Khor, S. F.
N. H., Jakfar
B., Johar
N. M., S. Adzali
S. N. H., Mohd. Yunus
Cheng, E. M.
E. Z., M. Tarmizi
Khor, S. F.
Z., A. Talib
Synthesis of sustainable binary calcium monosilicate ceramics from bio-waste: effect of sintering temperature on microstructure and electrical properties
description Link to publisher's homepage at http://ijneam.unimap.edu.my/
author2 sfkhor@unimap.edu.my
author_facet sfkhor@unimap.edu.my
Khor, S. F.
N. H., Jakfar
B., Johar
N. M., S. Adzali
S. N. H., Mohd. Yunus
Cheng, E. M.
E. Z., M. Tarmizi
Khor, S. F.
Z., A. Talib
format Article
author Khor, S. F.
N. H., Jakfar
B., Johar
N. M., S. Adzali
S. N. H., Mohd. Yunus
Cheng, E. M.
E. Z., M. Tarmizi
Khor, S. F.
Z., A. Talib
author_sort Khor, S. F.
title Synthesis of sustainable binary calcium monosilicate ceramics from bio-waste: effect of sintering temperature on microstructure and electrical properties
title_short Synthesis of sustainable binary calcium monosilicate ceramics from bio-waste: effect of sintering temperature on microstructure and electrical properties
title_full Synthesis of sustainable binary calcium monosilicate ceramics from bio-waste: effect of sintering temperature on microstructure and electrical properties
title_fullStr Synthesis of sustainable binary calcium monosilicate ceramics from bio-waste: effect of sintering temperature on microstructure and electrical properties
title_full_unstemmed Synthesis of sustainable binary calcium monosilicate ceramics from bio-waste: effect of sintering temperature on microstructure and electrical properties
title_sort synthesis of sustainable binary calcium monosilicate ceramics from bio-waste: effect of sintering temperature on microstructure and electrical properties
publisher Universiti Malaysia Perlis (UniMAP)
publishDate 2023
url http://dspace.unimap.edu.my:80/xmlui/handle/123456789/78121
_version_ 1772813133920862208
score 13.222552

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