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Williams, H.M., Dawson, Elizabeth A, Barnes, Philip A., Rand, Brian and Brydson, Rik M.D. (2007) The development and stability of porosity formed during the pyrolysis of polyborodiphenylsiloxane. Microporous and Mesoporous Materials, 99 (3). pp. 261-267. ISSN 1387-1811
Metadata only available from this repository.Abstract
The pyrolysis of polyborodiphenylsiloxane has been studied at temperatures up to 1600 °C under an inert atmosphere. Above 1200 °C both a nano-scale β-SiC and an amorphous phase developed while at temperatures greater than 1400 °C significant mesoporosity started to appear, with surface areas and pore volumes reaching maximum values at around 1500 °C. The porosity decreased at higher pyrolysis temperatures and disappeared completely when the material was subsequently heated in an oxidising atmosphere at temperatures above 400 °C. The mesoporosity seems to be present in carbon rich areas which appeared when SiC started to crystallise. EELS showed that boron was present at all pyrolysis temperatures. Comparisons are made with the pyrolysis of polycarbosilane
| Item Type: | Article |
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| Subjects: | Q Science > Q Science (General) Q Science > QE Geology |
| Schools: | School of Applied Sciences School of Applied Sciences > Materials and Catalysis Research Centre |
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| Depositing User: | Sara Taylor |
| Date Deposited: | 23 May 2008 12:57 |
| Last Modified: | 18 Mar 2011 10:56 |
| URI: | http://eprints.hud.ac.uk/id/eprint/776 |
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