The effects of CeO2 addition on the physical and microstructural properties of ZTA-TiO2 ceramics composite

The effect of CeO2 addition ranging from 0 wt. % to 7 wt. % on phase, microstructural evolution, physical and mechanical properties of ZTA-3 wt. % TiO2 ceramic composite were investigated. The samples were prepared by solid-state mixing and sintered at 1600 °C for 1hr under pressureless condition. S...

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Main Authors:	Ahmad Azhar, Ahmad Zahirani, Mohamad Shawal, Siti Hajar, Manshor, Hanisah, Mohd Ali, Afifah, Rejab, Nik Akmar, Chan Abdullah, Ezzat, Ahmad, Zainal Arifin
Format:	Article
Language:	English English English
Published:	Elsevier 2019
Subjects:	QC Physics TA401 Materials of engineering and construction
Online Access:	http://irep.iium.edu.my/66556/ http://irep.iium.edu.my/66556/ http://irep.iium.edu.my/66556/ http://irep.iium.edu.my/66556/7/66556%20The%20effects%20of%20CeO2%20addition%20on%20the%20physical%20and%20microstructural.pdf http://irep.iium.edu.my/66556/8/66556%20The%20effects%20of%20CeO2%20addition%20on%20the%20physical%20and%20microstructural%20SCOPUS.pdf http://irep.iium.edu.my/66556/19/66556_The%20effects%20of%20CeO2%20addition%20on%20the%20physical%20and%20microstructural_WOS.pdf

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spelling	iium-665562019-01-28T03:22:38Z http://irep.iium.edu.my/66556/ The effects of CeO2 addition on the physical and microstructural properties of ZTA-TiO2 ceramics composite Ahmad Azhar, Ahmad Zahirani Mohamad Shawal, Siti Hajar Manshor, Hanisah Mohd Ali, Afifah Rejab, Nik Akmar Chan Abdullah, Ezzat Ahmad, Zainal Arifin QC Physics TA401 Materials of engineering and construction The effect of CeO2 addition ranging from 0 wt. % to 7 wt. % on phase, microstructural evolution, physical and mechanical properties of ZTA-3 wt. % TiO2 ceramic composite were investigated. The samples were prepared by solid-state mixing and sintered at 1600 °C for 1hr under pressureless condition. Samples were then characterized by XRD, SEM, densitometer and Vickers indentation method. Based on XRD analysis, m-ZrO2 began to diminish at 1 wt.% CeO2 while secondary phases, i.e. Ce0.7Zr0.3O2and Zr0.4Ti0.6O2 initiated at 3 wt.% CeO2 addition. SEM images showed finer grain sizes was produced upon increasing amount of CeO2 up to 5 wt.%, corresponding to higher average grain intercept (AGI) values. From the results obtained, the optimum amount of CeO2 addition was at 5 wt. % which yielded the highest bulk density (4.41 g/cm3), firing shrinkage (21.94%), hardness (1580.10HV) and fracture toughness (9.77 MPa m1/2). This is contributed by the grain refinement and the highest amount of secondary phases formed, especially Zr0.4Ti0.6O2. However, with an excessive addition of CeO2, i.e more than 5 wt.%, grain sizes enlarged and the amount of secondary phases reduced, which degraded the mechanical properties of ZTA-3 wt. % TiO2. Elsevier 2019-01-30 Article PeerReviewed application/pdf en http://irep.iium.edu.my/66556/7/66556%20The%20effects%20of%20CeO2%20addition%20on%20the%20physical%20and%20microstructural.pdf application/pdf en http://irep.iium.edu.my/66556/8/66556%20The%20effects%20of%20CeO2%20addition%20on%20the%20physical%20and%20microstructural%20SCOPUS.pdf application/pdf en http://irep.iium.edu.my/66556/19/66556_The%20effects%20of%20CeO2%20addition%20on%20the%20physical%20and%20microstructural_WOS.pdf Ahmad Azhar, Ahmad Zahirani and Mohamad Shawal, Siti Hajar and Manshor, Hanisah and Mohd Ali, Afifah and Rejab, Nik Akmar and Chan Abdullah, Ezzat and Ahmad, Zainal Arifin (2019) The effects of CeO2 addition on the physical and microstructural properties of ZTA-TiO2 ceramics composite. Journal of Alloys and Compounds, 773. pp. 27-33. ISSN 0925-8388 E-ISSN 0925-8388 https://www.sciencedirect.com/science/article/abs/pii/S0925838818334133 10.1016/j.jallcom.2018.09.173
repository_type	Digital Repository
institution_category	Local University
institution	International Islamic University Malaysia
building	IIUM Repository
collection	Online Access
language	English English English
topic	QC Physics TA401 Materials of engineering and construction
spellingShingle	QC Physics TA401 Materials of engineering and construction Ahmad Azhar, Ahmad Zahirani Mohamad Shawal, Siti Hajar Manshor, Hanisah Mohd Ali, Afifah Rejab, Nik Akmar Chan Abdullah, Ezzat Ahmad, Zainal Arifin The effects of CeO2 addition on the physical and microstructural properties of ZTA-TiO2 ceramics composite
description	The effect of CeO2 addition ranging from 0 wt. % to 7 wt. % on phase, microstructural evolution, physical and mechanical properties of ZTA-3 wt. % TiO2 ceramic composite were investigated. The samples were prepared by solid-state mixing and sintered at 1600 °C for 1hr under pressureless condition. Samples were then characterized by XRD, SEM, densitometer and Vickers indentation method. Based on XRD analysis, m-ZrO2 began to diminish at 1 wt.% CeO2 while secondary phases, i.e. Ce0.7Zr0.3O2and Zr0.4Ti0.6O2 initiated at 3 wt.% CeO2 addition. SEM images showed finer grain sizes was produced upon increasing amount of CeO2 up to 5 wt.%, corresponding to higher average grain intercept (AGI) values. From the results obtained, the optimum amount of CeO2 addition was at 5 wt. % which yielded the highest bulk density (4.41 g/cm3), firing shrinkage (21.94%), hardness (1580.10HV) and fracture toughness (9.77 MPa m1/2). This is contributed by the grain refinement and the highest amount of secondary phases formed, especially Zr0.4Ti0.6O2. However, with an excessive addition of CeO2, i.e more than 5 wt.%, grain sizes enlarged and the amount of secondary phases reduced, which degraded the mechanical properties of ZTA-3 wt. % TiO2.
format	Article
author	Ahmad Azhar, Ahmad Zahirani Mohamad Shawal, Siti Hajar Manshor, Hanisah Mohd Ali, Afifah Rejab, Nik Akmar Chan Abdullah, Ezzat Ahmad, Zainal Arifin
author_facet	Ahmad Azhar, Ahmad Zahirani Mohamad Shawal, Siti Hajar Manshor, Hanisah Mohd Ali, Afifah Rejab, Nik Akmar Chan Abdullah, Ezzat Ahmad, Zainal Arifin
author_sort	Ahmad Azhar, Ahmad Zahirani
title	The effects of CeO2 addition on the physical and microstructural properties of ZTA-TiO2 ceramics composite
title_short	The effects of CeO2 addition on the physical and microstructural properties of ZTA-TiO2 ceramics composite
title_full	The effects of CeO2 addition on the physical and microstructural properties of ZTA-TiO2 ceramics composite
title_fullStr	The effects of CeO2 addition on the physical and microstructural properties of ZTA-TiO2 ceramics composite
title_full_unstemmed	The effects of CeO2 addition on the physical and microstructural properties of ZTA-TiO2 ceramics composite
title_sort	effects of ceo2 addition on the physical and microstructural properties of zta-tio2 ceramics composite
publisher	Elsevier
publishDate	2019
url	http://irep.iium.edu.my/66556/ http://irep.iium.edu.my/66556/ http://irep.iium.edu.my/66556/ http://irep.iium.edu.my/66556/7/66556%20The%20effects%20of%20CeO2%20addition%20on%20the%20physical%20and%20microstructural.pdf http://irep.iium.edu.my/66556/8/66556%20The%20effects%20of%20CeO2%20addition%20on%20the%20physical%20and%20microstructural%20SCOPUS.pdf http://irep.iium.edu.my/66556/19/66556_The%20effects%20of%20CeO2%20addition%20on%20the%20physical%20and%20microstructural_WOS.pdf
first_indexed	2023-09-18T21:34:31Z
last_indexed	2023-09-18T21:34:31Z
_version_	1777412731129823232

The effects of CeO2 addition on the physical and microstructural properties of ZTA-TiO2 ceramics composite

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