Staff View: Effect of layer printing delay on mechanical properties and dimensional accuracy of 3D printed porous prototypes in bone tissue engineering

Effect of layer printing delay on mechanical properties and dimensional accuracy of 3D printed porous prototypes in bone tissue engineering

Recent advancements in computational design and additive manufacturing have enabled the fabrication of 3D prototypes with controlled architecture resembling the natural bone. Powder-based three-dimensional printing (3DP) is a versatile method for production of synthetic scaffolds using sequential la...

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Main Authors:	Farzadi, A., Waran, V., Solati-Hashjin, M., Rahman, Z.A.A., Asadi, M., Abu Osman, Noor Azuan
Format:	Article
Language:	English
Published:	Elsevier 2015
Subjects:	T Technology (General) TA Engineering (General). Civil engineering (General)
Online Access:	http://eprints.um.edu.my/15691/1/Effect_of_layer_printing_delay_on_mechanical_properties_and_dimensional_accuracy_of_3D.pdf http://eprints.um.edu.my/15691/ http://www.sciencedirect.com/science/article/pii/S0272884215004010
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spelling	my.um.eprints.156912019-02-07T07:42:24Z http://eprints.um.edu.my/15691/ Effect of layer printing delay on mechanical properties and dimensional accuracy of 3D printed porous prototypes in bone tissue engineering Farzadi, A. Waran, V. Solati-Hashjin, M. Rahman, Z.A.A. Asadi, M. Abu Osman, Noor Azuan T Technology (General) TA Engineering (General). Civil engineering (General) Recent advancements in computational design and additive manufacturing have enabled the fabrication of 3D prototypes with controlled architecture resembling the natural bone. Powder-based three-dimensional printing (3DP) is a versatile method for production of synthetic scaffolds using sequential layering process. The quality of 3D printed products by this method is controlled by the optimal build parameters. In this study, Calcium Sulfate based powders were used for porous scaffolds fabrication. The X-direction printed scaffolds with a pore size of 0.8 mm and a layer thickness of 0.1125 mm were subjected to the depowdering step. The effects of four layer printing delays of 50, 100, 300 and 500 ms on the physical and mechanical properties of printed scaffolds were investigated. The compressive strength, toughness and tangent modulus of samples printed with a delay of 300 ms were observed to be higher than other samples. Furthermore, the results of SEM and mu CT analyses showed that samples printed with a delay of 300 ms have higher dimensional accuracy and are significantly closer to CAD software based designs with predefined 0.8 mm macro-pore and 0.6 mm strut size. (C) 2015 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). Elsevier 2015-08 Article PeerReviewed application/pdf en http://eprints.um.edu.my/15691/1/Effect_of_layer_printing_delay_on_mechanical_properties_and_dimensional_accuracy_of_3D.pdf Farzadi, A. and Waran, V. and Solati-Hashjin, M. and Rahman, Z.A.A. and Asadi, M. and Abu Osman, Noor Azuan (2015) Effect of layer printing delay on mechanical properties and dimensional accuracy of 3D printed porous prototypes in bone tissue engineering. Ceramics International, 41 (7). pp. 8320-8330. ISSN 0272-8842 http://www.sciencedirect.com/science/article/pii/S0272884215004010 10.1016/j.ceramint.2015.03.004
institution	Universiti Malaya
building	UM Library
collection	Institutional Repository
continent	Asia
country	Malaysia
content_provider	Universiti Malaya
content_source	UM Research Repository
url_provider	http://eprints.um.edu.my/
language	English
topic	T Technology (General) TA Engineering (General). Civil engineering (General)
spellingShingle	T Technology (General) TA Engineering (General). Civil engineering (General) Farzadi, A. Waran, V. Solati-Hashjin, M. Rahman, Z.A.A. Asadi, M. Abu Osman, Noor Azuan Effect of layer printing delay on mechanical properties and dimensional accuracy of 3D printed porous prototypes in bone tissue engineering
description	Recent advancements in computational design and additive manufacturing have enabled the fabrication of 3D prototypes with controlled architecture resembling the natural bone. Powder-based three-dimensional printing (3DP) is a versatile method for production of synthetic scaffolds using sequential layering process. The quality of 3D printed products by this method is controlled by the optimal build parameters. In this study, Calcium Sulfate based powders were used for porous scaffolds fabrication. The X-direction printed scaffolds with a pore size of 0.8 mm and a layer thickness of 0.1125 mm were subjected to the depowdering step. The effects of four layer printing delays of 50, 100, 300 and 500 ms on the physical and mechanical properties of printed scaffolds were investigated. The compressive strength, toughness and tangent modulus of samples printed with a delay of 300 ms were observed to be higher than other samples. Furthermore, the results of SEM and mu CT analyses showed that samples printed with a delay of 300 ms have higher dimensional accuracy and are significantly closer to CAD software based designs with predefined 0.8 mm macro-pore and 0.6 mm strut size. (C) 2015 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
format	Article
author	Farzadi, A. Waran, V. Solati-Hashjin, M. Rahman, Z.A.A. Asadi, M. Abu Osman, Noor Azuan
author_facet	Farzadi, A. Waran, V. Solati-Hashjin, M. Rahman, Z.A.A. Asadi, M. Abu Osman, Noor Azuan
author_sort	Farzadi, A.
title	Effect of layer printing delay on mechanical properties and dimensional accuracy of 3D printed porous prototypes in bone tissue engineering
title_short	Effect of layer printing delay on mechanical properties and dimensional accuracy of 3D printed porous prototypes in bone tissue engineering
title_full	Effect of layer printing delay on mechanical properties and dimensional accuracy of 3D printed porous prototypes in bone tissue engineering
title_fullStr	Effect of layer printing delay on mechanical properties and dimensional accuracy of 3D printed porous prototypes in bone tissue engineering
title_full_unstemmed	Effect of layer printing delay on mechanical properties and dimensional accuracy of 3D printed porous prototypes in bone tissue engineering
title_sort	effect of layer printing delay on mechanical properties and dimensional accuracy of 3d printed porous prototypes in bone tissue engineering
publisher	Elsevier
publishDate	2015
url	http://eprints.um.edu.my/15691/1/Effect_of_layer_printing_delay_on_mechanical_properties_and_dimensional_accuracy_of_3D.pdf http://eprints.um.edu.my/15691/ http://www.sciencedirect.com/science/article/pii/S0272884215004010
_version_	1643690109059465216
score	13.211869

Effect of layer printing delay on mechanical properties and dimensional accuracy of 3D printed porous prototypes in bone tissue engineering

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