Structural and chemical changes of thermally treated bone apatite

Susan E Etok; Eugenia Valsami-Jones; Tim J Wess; Jennifer C Hiller; Clark A Maxwell; Keith D Rogers; David A C Manning; Margaret L White; Elisa Lopez-Capel; Matthew J Collins; Mike Buckley; Kirsty E H Penkman; Stephen L Woodgate

doi:10.1007/s10853-007-1993-z

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Structural and chemical changes of thermally treated bone apatite

Journal article

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Structural and chemical changes of thermally treated bone apatite

Susan E Etok, Eugenia Valsami-Jones, Tim J Wess, Jennifer C Hiller, Clark A Maxwell, Keith D Rogers, David A C Manning, Margaret L White, Elisa Lopez-Capel, Matthew J Collins, …

Journal of Materials Science, Vol.42(23), pp.9807-9816

2007

DOI: https://doi.org/10.1007/s10853-007-1993-z

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Abstract

bovine spongiform encephalopathy

thermal treatment temperature

amino acid data

bone apatite

crystallite thickness

The thermal behaviour of the animal by-product meat and bone meal (MBM) has been investigated in order to assess how it is affected structurally and chemically by incineration. Initially composed of intergrown collagen and hydroxyapatite (HAP), combustion of the organic component is complete by 650 °C, with most mass loss (50-55%) occurring by 500 °C. No original proteins were detected in samples heated at 400 °C or above. Combustion of collagen is accompanied by an increase in HAP mean crystallite size at temperatures greater than 400 °C, from 10 nm to a constant value of 120 nm at 800 °C or more. Newly formed crystalline phases appear beyond 400 °C, and include β-tricalcium phosphate, NaCaPO4, halite (NaCl) and sylvite (KCl). Crystallite thickness as judged by small angle X-ray scattering (SAXS) increases from 2 nm (25-400 °C) to 8-9 nm very rapidly at 550 °C, and then gradually increases to approximately 10 nm. The original texture of HAP within a collagen matrix is progressively lost, producing a porous HAP dominated solid at 700 °C, and a very low porosity sintered HAP product at 900 °C. © 2007 Springer Science+Business Media, LLC.

Details

Title: Structural and chemical changes of thermally treated bone apatite
Authors: Susan E Etok (Author) - Natural History Museum
Eugenia Valsami-Jones (Author) - Natural History Museum
Tim J Wess (Author) - Cardiff University, United Kingdom
Jennifer C Hiller (Author) - Cardiff University, United Kingdom
Clark A Maxwell (Author) - Cardiff University, United Kingdom
Keith D Rogers (Author) - Cranfield University, United Kingdom
David A C Manning (Author) - Newcastle University, United Kingdom
Margaret L White (Author) - Newcastle University, United Kingdom
Elisa Lopez-Capel (Author) - Newcastle University, United Kingdom
Matthew J Collins (Author) - University of York, United Kingdom
Mike Buckley (Author) - University of York, United Kingdom
Kirsty E H Penkman (Author) - University of York, United Kingdom
Stephen L Woodgate (Author) - PDM Group, United Kingdom
Publication details: Journal of Materials Science, Vol.42(23), pp.9807-9816
Publisher: Springer New York LLC
Date published: 2007
DOI: 10.1007/s10853-007-1993-z
ISSN: 0022-2461
Organisation Unit: Office of the Deputy Vice-Chancellor (Academic); University of the Sunshine Coast, Queensland
Language: English
Record Identifier: 99450907302621
Output Type: Journal article

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Collaboration types: Domestic collaboration
Web Of Science research areas: Materials Science, Multidisciplinary

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