Daskalakis, E, Jha, A orcid.org/0000-0003-3150-5645, Scott, A et al. (1 more author) (2022) Phase and Microstructural Analysis of In-Situ Derived Alumina-TiB2 Composites. In: TMS 2022 151st Annual Meeting & Exhibition Supplemental Proceedings. TMS 2022 151st Annual Meeting & Exhibition, 27 Feb - 03 Mar 2022, Anaheim, California, USA. Springer, Cham , pp. 49-59. ISBN 9783030923808
Abstract
The paper focusses on the phase and microstructural evolution in ceramic composite based on alumina and titanium diboride, in which the precursor materials are aluminium mixed with TiO2 and B2O3. The highly exothermic, self-sustaining, and aluminothermic reaction (103Al+TiO2+B2O3=53Al2O3+TiB2,ΔH=2,710kJmol) occurs in the absence of oxygen. Eventually, triggering the self-sustaining reaction on compacts formed from a ball-milled derived mixture, consisted of Al particles coated with TiO2 and B2O3 nano-particles, resulted in the spontaneous formation of a ceramic phase mixture consisted of alumina particles coated with TiB2 and Ti2O3 nano-particles. The highly exothermic character of the reaction enabled the sintering of the coated Al2O3 particles into a dense unique microstructure.
Metadata
Item Type: | Proceedings Paper |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2022 The Minerals, Metals & Materials Society. This is an author produced version of a conference paper published in TMS 2022 151st Annual Meeting & Exhibition Supplemental Proceedings. Uploaded in accordance with the publisher's self-archiving policy. |
Keywords: | Self-sustaining reaction; Ceramic composites; Al2O3–TiB2 |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Chemical & Process Engineering (Leeds) |
Funding Information: | Funder Grant number DSTL (Defence Science & Technology Laboratory) Not Known |
Depositing User: | Symplectic Publications |
Date Deposited: | 10 May 2022 09:27 |
Last Modified: | 07 Feb 2023 01:13 |
Status: | Published |
Publisher: | Springer, Cham |
Identification Number: | 10.1007/978-3-030-92381-5_6 |
Related URLs: | |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:186600 |