Microfabrication of net shape zirconia/alumina nanocomposite micro parts

Hassanin, Hany, Ahmed El-Sayed, Mahmoud, Elshaer, Amr, Essa, Khamis and Jiang, Kyle (2018) Microfabrication of net shape zirconia/alumina nanocomposite micro parts. Nanomaterials, 8(8), p. 593. ISSN (online) 2079-4991

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Abstract

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/Al2O3) 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/Al2O3 micro parts achieved micro hardness with 20% superior to the pure YSZ sintered micro-parts with the addition of 5% alumina.

Item Type: Article
Research Area: Chemistry
Mechanical, aeronautical and manufacturing engineering
Faculty, School or Research Centre: Faculty of Science, Engineering and Computing > School of Engineering
Faculty of Science, Engineering and Computing > School of Life Sciences, Pharmacy and Chemistry
Depositing User: Anna Englund
Date Deposited: 24 Sep 2018 08:06
Last Modified: 19 Oct 2018 11:09
DOI: https://doi.org/10.3390/nano8080593
URI: http://eprints.kingston.ac.uk/id/eprint/41994

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