File(s) under permanent embargo
Reason: This item is currently closed access.
Heat flux mapping of oxyacetylene flames and their use to characterise Cf-HfB2 composites
journal contribution
posted on 2017-01-05, 16:05 authored by Anish Paul, J.G.P. Binner, Vaidhy VaidhyanathanVaidhy Vaidhyanathan, A. Heaton, Peter M. BrownCost effective and fast ultra-high-temperature testing methods such as oxyacetylene torch testing are extremely useful for the rapid screening of ultra-high-temperature ceramic (UHTC) materials for hypersonic applications. There is no report in the literature, however, of an organised study to measure the heat flux and how it varies with gas flow rate, gas flow ratio and distance from the nozzle tip for an oxyacetylene flame. In this paper, the authors report for the first time the heat flux mapping of an oxidising, neutral and reducing flame. The measured heat flux was as high as ∼17 MW m-2 at a distance of 10 mm from the nozzle, which is much higher than that previously reported in the literature. Torch testing was carried out for Cf-HfB2 UHTC composites at this heat flux and the results are presented along with detailed microstructural characterisation.
Funding
The authors thank the Defence Science and Technology Laboratory (DSTL), UK, for providing the financial support for this work under contract number DSTLX- 1000015267.
History
School
- Aeronautical, Automotive, Chemical and Materials Engineering
Department
- Materials
Published in
Advances in Applied CeramicsVolume
115Issue
3Pages
158 - 165Citation
PAUL, A. ... et al., 2016. Heat flux mapping of oxyacetylene flames and their use to characterise Cf-HfB2 composites. Advances in Applied Ceramics, 115 (3), pp. 158 - 165.Publisher
© Institute of Materials, Minerals and Mining Published by Taylor & Francis on behalf of the InstituteVersion
- VoR (Version of Record)
Publisher statement
This work is made available according to the conditions of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) licence. Full details of this licence are available at: https://creativecommons.org/licenses/by-nc-nd/4.0/Acceptance date
2015-09-28Publication date
2016-02-09Copyright date
2016Notes
Closed accessISSN
1743-6753eISSN
1743-6761Publisher version
Language
- en