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Microfabrication of Net Shape Zirconia/Alumina Nanocomposite Micro Parts

Recently, there are growing demands in manufacturing of net shape micro parts for wide range of applications due to the increasing interest in miniaturization. In this paper, the fabrication of tetragonal phase zirconia/alumina (YSZ/Al(2)O(3)) nanocomposite micro-parts with high quality is presented...

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Autores principales: Hassanin, Hany, Ahmed El-Sayed, Mahmoud, ElShaer, Amr, Essa, Khamis, Jiang, Kyle
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6116201/
https://www.ncbi.nlm.nih.gov/pubmed/30081582
http://dx.doi.org/10.3390/nano8080593
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author Hassanin, Hany
Ahmed El-Sayed, Mahmoud
ElShaer, Amr
Essa, Khamis
Jiang, Kyle
author_facet Hassanin, Hany
Ahmed El-Sayed, Mahmoud
ElShaer, Amr
Essa, Khamis
Jiang, Kyle
author_sort Hassanin, Hany
collection PubMed
description Recently, there are growing demands in manufacturing of net shape micro parts for wide range of applications due to the increasing interest in miniaturization. In this paper, the fabrication of tetragonal phase zirconia/alumina (YSZ/Al(2)O(3)) nanocomposite micro-parts with high quality is presented. The fabrication process is based on soft lithography and colloidal powder dispersion. Experimental results showed that by optimizing the soft lithography and the dispersion process, it was possible to produce high-resolution micro-parts with well dispersed alumina. The X-ray diffraction results had confirmed the important role of the alumina particles in eliminating the emergence of monoclinic phase while the microstructures reveal a pure tetragonal phase. In addition, the sintered YSZ/Al(2)O(3) micro parts achieved micro hardness with 20% superior to the pure YSZ sintered micro-parts with the addition of 5% alumina.
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spelling pubmed-61162012018-08-31 Microfabrication of Net Shape Zirconia/Alumina Nanocomposite Micro Parts Hassanin, Hany Ahmed El-Sayed, Mahmoud ElShaer, Amr Essa, Khamis Jiang, Kyle Nanomaterials (Basel) Article Recently, there are growing demands in manufacturing of net shape micro parts for wide range of applications due to the increasing interest in miniaturization. In this paper, the fabrication of tetragonal phase zirconia/alumina (YSZ/Al(2)O(3)) nanocomposite micro-parts with high quality is presented. The fabrication process is based on soft lithography and colloidal powder dispersion. Experimental results showed that by optimizing the soft lithography and the dispersion process, it was possible to produce high-resolution micro-parts with well dispersed alumina. The X-ray diffraction results had confirmed the important role of the alumina particles in eliminating the emergence of monoclinic phase while the microstructures reveal a pure tetragonal phase. In addition, the sintered YSZ/Al(2)O(3) micro parts achieved micro hardness with 20% superior to the pure YSZ sintered micro-parts with the addition of 5% alumina. MDPI 2018-08-05 /pmc/articles/PMC6116201/ /pubmed/30081582 http://dx.doi.org/10.3390/nano8080593 Text en © 2018 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Hassanin, Hany
Ahmed El-Sayed, Mahmoud
ElShaer, Amr
Essa, Khamis
Jiang, Kyle
Microfabrication of Net Shape Zirconia/Alumina Nanocomposite Micro Parts
title Microfabrication of Net Shape Zirconia/Alumina Nanocomposite Micro Parts
title_full Microfabrication of Net Shape Zirconia/Alumina Nanocomposite Micro Parts
title_fullStr Microfabrication of Net Shape Zirconia/Alumina Nanocomposite Micro Parts
title_full_unstemmed Microfabrication of Net Shape Zirconia/Alumina Nanocomposite Micro Parts
title_short Microfabrication of Net Shape Zirconia/Alumina Nanocomposite Micro Parts
title_sort microfabrication of net shape zirconia/alumina nanocomposite micro parts
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6116201/
https://www.ncbi.nlm.nih.gov/pubmed/30081582
http://dx.doi.org/10.3390/nano8080593
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