$Comparison of zirconia toughened alumina fracture toughness obtained from Vickers indentation by applying various equations$

Comparison of zirconia toughened alumina fracture toughness obtained from Vickers indentation by applying various equations

Alumina ceramics (Al 2 O 3 ) displays excellent mechanical properties highly demanded in various fields of application. However, low fracture toughness (K IC ) property of the alumina ceramics limits their functionability such as heavy-duty forming tools and refractories. Adding a second composition...

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Main Authors:	Roslan, Alida, Manshor, Hanisah, Ahmad Azhar, Ahmad Zahirani
Format:	Conference or Workshop Item
Language:	English English English
Published:	American Institute of Physics Inc. 2019
Subjects:	T Technology (General) TA401 Materials of engineering and construction TP200 Manufacture and use of chemicals
Online Access:	http://irep.iium.edu.my/73149/ http://irep.iium.edu.my/73149/ http://irep.iium.edu.my/73149/ http://irep.iium.edu.my/73149/13/73149_Comparison%20of%20zirconia%20toughened_complete_new.pdf http://irep.iium.edu.my/73149/2/73149_Comparison%20of%20zirconia%20toughened_scopus.pdf http://irep.iium.edu.my/73149/19/73149_Comparison%20of%20zirconia%20toughened_wos.pdf

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recordtype	eprints
spelling	iium-731492019-07-18T07:17:03Z http://irep.iium.edu.my/73149/ Comparison of zirconia toughened alumina fracture toughness obtained from Vickers indentation by applying various equations Roslan, Alida Manshor, Hanisah Ahmad Azhar, Ahmad Zahirani T Technology (General) TA401 Materials of engineering and construction TP200 Manufacture and use of chemicals Alumina ceramics (Al 2 O 3 ) displays excellent mechanical properties highly demanded in various fields of application. However, low fracture toughness (K IC ) property of the alumina ceramics limits their functionability such as heavy-duty forming tools and refractories. Adding a second composition, yttria stabilized zirconia was aimed to improve the K IC property of alumina ceramics, producing a zirconia toughened alumina (ZTA) ceramics composite. Vickers indentation technique was employed in this work to determine the hardness and K IC of ZTA ceramics as it requires only a small area of samples surface to be tested and is cost effective. ZTA ceramic composite was indented with 1 kgf load, three indentations each. The average hardness from the Vickers hardness testing of ZTA was recorded and the crack length was measured using scanning electron microscope (SEM). There is a wide variety of empirical equations available to determine the K IC for Vickers hardness test, however most of the equations are said not to be in a good agreement with the K IC value obtained from three point bending test. Thus, hardness and crack length parameters were incorporated in the various empirical equations available to measure the fracture toughness value. It was shown that the crack propagation follows Palmqvist model, and Eq. 4 (K IC =0.0134 (E/H v ) 1/2 (P/c 3/2 )) is the most suitable in determining the K IC of ZTA. American Institute of Physics Inc. 2019-02-06 Conference or Workshop Item PeerReviewed application/pdf en http://irep.iium.edu.my/73149/13/73149_Comparison%20of%20zirconia%20toughened_complete_new.pdf application/pdf en http://irep.iium.edu.my/73149/2/73149_Comparison%20of%20zirconia%20toughened_scopus.pdf application/pdf en http://irep.iium.edu.my/73149/19/73149_Comparison%20of%20zirconia%20toughened_wos.pdf Roslan, Alida and Manshor, Hanisah and Ahmad Azhar, Ahmad Zahirani (2019) Comparison of zirconia toughened alumina fracture toughness obtained from Vickers indentation by applying various equations. In: International Conference on X-Rays and Related Techniques in Research and Industry 2018, ICXRI 2018, 18 - 19 August 2018, Grand Riverview Hotel, Kota Bharu, Kelantan. https://aip.scitation.org/doi/pdf/10.1063/1.5089303?class=pdf 10.1063/1.5089303
repository_type	Digital Repository
institution_category	Local University
institution	International Islamic University Malaysia
building	IIUM Repository
collection	Online Access
language	English English English
topic	T Technology (General) TA401 Materials of engineering and construction TP200 Manufacture and use of chemicals
spellingShingle	T Technology (General) TA401 Materials of engineering and construction TP200 Manufacture and use of chemicals Roslan, Alida Manshor, Hanisah Ahmad Azhar, Ahmad Zahirani Comparison of zirconia toughened alumina fracture toughness obtained from Vickers indentation by applying various equations
description	Alumina ceramics (Al 2 O 3 ) displays excellent mechanical properties highly demanded in various fields of application. However, low fracture toughness (K IC ) property of the alumina ceramics limits their functionability such as heavy-duty forming tools and refractories. Adding a second composition, yttria stabilized zirconia was aimed to improve the K IC property of alumina ceramics, producing a zirconia toughened alumina (ZTA) ceramics composite. Vickers indentation technique was employed in this work to determine the hardness and K IC of ZTA ceramics as it requires only a small area of samples surface to be tested and is cost effective. ZTA ceramic composite was indented with 1 kgf load, three indentations each. The average hardness from the Vickers hardness testing of ZTA was recorded and the crack length was measured using scanning electron microscope (SEM). There is a wide variety of empirical equations available to determine the K IC for Vickers hardness test, however most of the equations are said not to be in a good agreement with the K IC value obtained from three point bending test. Thus, hardness and crack length parameters were incorporated in the various empirical equations available to measure the fracture toughness value. It was shown that the crack propagation follows Palmqvist model, and Eq. 4 (K IC =0.0134 (E/H v ) 1/2 (P/c 3/2 )) is the most suitable in determining the K IC of ZTA.
format	Conference or Workshop Item
author	Roslan, Alida Manshor, Hanisah Ahmad Azhar, Ahmad Zahirani
author_facet	Roslan, Alida Manshor, Hanisah Ahmad Azhar, Ahmad Zahirani
author_sort	Roslan, Alida
title	Comparison of zirconia toughened alumina fracture toughness obtained from Vickers indentation by applying various equations
title_short	Comparison of zirconia toughened alumina fracture toughness obtained from Vickers indentation by applying various equations
title_full	Comparison of zirconia toughened alumina fracture toughness obtained from Vickers indentation by applying various equations
title_fullStr	Comparison of zirconia toughened alumina fracture toughness obtained from Vickers indentation by applying various equations
title_full_unstemmed	Comparison of zirconia toughened alumina fracture toughness obtained from Vickers indentation by applying various equations
title_sort	comparison of zirconia toughened alumina fracture toughness obtained from vickers indentation by applying various equations
publisher	American Institute of Physics Inc.
publishDate	2019
url	http://irep.iium.edu.my/73149/ http://irep.iium.edu.my/73149/ http://irep.iium.edu.my/73149/ http://irep.iium.edu.my/73149/13/73149_Comparison%20of%20zirconia%20toughened_complete_new.pdf http://irep.iium.edu.my/73149/2/73149_Comparison%20of%20zirconia%20toughened_scopus.pdf http://irep.iium.edu.my/73149/19/73149_Comparison%20of%20zirconia%20toughened_wos.pdf
first_indexed	2023-09-18T21:43:43Z
last_indexed	2023-09-18T21:43:43Z
_version_	1777413310475403264

Comparison of zirconia toughened alumina fracture toughness obtained from Vickers indentation by applying various equations

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