Adhesion failure behavior of sputtered calcium phosphate thin film coatings evaluated using microscratch testing

It is generally accepted that calcium phosphate (CaP) is one of the most important biomaterials in implant coating applications mainly because of its excellent bioactivity. However, its relatively poor mechanical properties limits its application. This entails that a better understanding of the mec...

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Main Authors:	Toque, Jay Arre, Herliansyah, Muhammad Kusumawan, Abd Shukor, Mohd Hamdi, Ide-Ektessabi, A., Sopyan, Iis
Format:	Article
Language:	English
Published:	Elsevier 2010
Subjects:	T Technology (General)
Online Access:	http://irep.iium.edu.my/4614/ http://irep.iium.edu.my/4614/ http://irep.iium.edu.my/4614/ http://irep.iium.edu.my/4614/1/JMBBM2010.pdf

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spelling	iium-46142011-09-28T04:18:24Z http://irep.iium.edu.my/4614/ Adhesion failure behavior of sputtered calcium phosphate thin film coatings evaluated using microscratch testing Toque, Jay Arre Herliansyah, Muhammad Kusumawan Abd Shukor, Mohd Hamdi Ide-Ektessabi, A. Sopyan, Iis T Technology (General) It is generally accepted that calcium phosphate (CaP) is one of the most important biomaterials in implant coating applications mainly because of its excellent bioactivity. However, its relatively poor mechanical properties limits its application. This entails that a better understanding of the mechanical properties of a CaP coating is a must especially its behavior and the mechanisms involved when subjected to stresses which eventually lead to failure. The mechanical properties of the coating may be evaluated in terms of its adhesion strength. In this study, a radio frequencymagnetron (RFMS) sputtering technique was used to deposit CaP thin films on 316L stainless steel (SS). The coatings were subjected to series of microscratch tests, taking careful note of its behavior as the load is applied. The adhesion behavior of the coatings showed varying responses. It was revealed that several coating processrelated factors such as thickness, postheat treatment and deposition parameters, to name a few, affect its scratching behavior. Scratch testingrelated factors (i.e. loading rate, scratch speed, scratch load, etc.) were also shown to influence the mechanisms involved in the coating adhesion failure. Evaluation of the load displacement graph combined with optical inspection of the scratch confirmed that several modes of failure occurred during the scratching process. These include trackside cracking, tensile cracking, radial cracking, buckling, delamination and combinations of one or more modes. Elsevier 2010 Article PeerReviewed application/pdf en http://irep.iium.edu.my/4614/1/JMBBM2010.pdf Toque, Jay Arre and Herliansyah, Muhammad Kusumawan and Abd Shukor, Mohd Hamdi and Ide-Ektessabi, A. and Sopyan, Iis (2010) Adhesion failure behavior of sputtered calcium phosphate thin film coatings evaluated using microscratch testing. Journal of the Mechanical Behavior of Biomedical Materials, 3. pp. 324-330. ISSN 1751-6161 http://www.elsevier.com/wps/find/journaldescription.cws_home/711005/description 10.1016/jmbbm.2010.01.002
repository_type	Digital Repository
institution_category	Local University
institution	International Islamic University Malaysia
building	IIUM Repository
collection	Online Access
language	English
topic	T Technology (General)
spellingShingle	T Technology (General) Toque, Jay Arre Herliansyah, Muhammad Kusumawan Abd Shukor, Mohd Hamdi Ide-Ektessabi, A. Sopyan, Iis Adhesion failure behavior of sputtered calcium phosphate thin film coatings evaluated using microscratch testing
description	It is generally accepted that calcium phosphate (CaP) is one of the most important biomaterials in implant coating applications mainly because of its excellent bioactivity. However, its relatively poor mechanical properties limits its application. This entails that a better understanding of the mechanical properties of a CaP coating is a must especially its behavior and the mechanisms involved when subjected to stresses which eventually lead to failure. The mechanical properties of the coating may be evaluated in terms of its adhesion strength. In this study, a radio frequencymagnetron (RFMS) sputtering technique was used to deposit CaP thin films on 316L stainless steel (SS). The coatings were subjected to series of microscratch tests, taking careful note of its behavior as the load is applied. The adhesion behavior of the coatings showed varying responses. It was revealed that several coating processrelated factors such as thickness, postheat treatment and deposition parameters, to name a few, affect its scratching behavior. Scratch testingrelated factors (i.e. loading rate, scratch speed, scratch load, etc.) were also shown to influence the mechanisms involved in the coating adhesion failure. Evaluation of the load displacement graph combined with optical inspection of the scratch confirmed that several modes of failure occurred during the scratching process. These include trackside cracking, tensile cracking, radial cracking, buckling, delamination and combinations of one or more modes.
format	Article
author	Toque, Jay Arre Herliansyah, Muhammad Kusumawan Abd Shukor, Mohd Hamdi Ide-Ektessabi, A. Sopyan, Iis
author_facet	Toque, Jay Arre Herliansyah, Muhammad Kusumawan Abd Shukor, Mohd Hamdi Ide-Ektessabi, A. Sopyan, Iis
author_sort	Toque, Jay Arre
title	Adhesion failure behavior of sputtered calcium phosphate thin film coatings evaluated using microscratch testing
title_short	Adhesion failure behavior of sputtered calcium phosphate thin film coatings evaluated using microscratch testing
title_full	Adhesion failure behavior of sputtered calcium phosphate thin film coatings evaluated using microscratch testing
title_fullStr	Adhesion failure behavior of sputtered calcium phosphate thin film coatings evaluated using microscratch testing
title_full_unstemmed	Adhesion failure behavior of sputtered calcium phosphate thin film coatings evaluated using microscratch testing
title_sort	adhesion failure behavior of sputtered calcium phosphate thin film coatings evaluated using microscratch testing
publisher	Elsevier
publishDate	2010
url	http://irep.iium.edu.my/4614/ http://irep.iium.edu.my/4614/ http://irep.iium.edu.my/4614/ http://irep.iium.edu.my/4614/1/JMBBM2010.pdf
first_indexed	2023-09-18T20:12:54Z
last_indexed	2023-09-18T20:12:54Z
_version_	1777407596058116096

Adhesion failure behavior of sputtered calcium phosphate thin film coatings evaluated using microscratch testing

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