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Crystallographic characterization of fluorapatite glass-ceramics synthesized from industrial waste

Published online by Cambridge University Press:  05 September 2017

Chee W. Loy ,
Khamirul A. Matori ,
Norhazlin Zainuddin ,
Andrew E. Whitten ,
Christine Rehm ,
Liliana de Campo ,
Anna Sokolova  and
Siegbert Schmid
Chee W. Loy
Affiliation:
School of Chemistry, The University of Sydney, Sydney NSW 2006, Australia
Khamirul A. Matori
Affiliation:
Department of Physics, Universiti Putra Malaysia, UPM Serdang 43400, Malaysia
Norhazlin Zainuddin
Affiliation:
Department of Chemistry, Universiti Putra Malaysia, UPM Serdang 43400, Malaysia
Andrew E. Whitten
Affiliation:
Australian Centre for Neutron Scattering, Australian Nuclear Science and Technology Organisation, Lucas Heights, NSW 2234, Australia
Christine Rehm
Affiliation:
Australian Centre for Neutron Scattering, Australian Nuclear Science and Technology Organisation, Lucas Heights, NSW 2234, Australia
Liliana de Campo
Affiliation:
Australian Centre for Neutron Scattering, Australian Nuclear Science and Technology Organisation, Lucas Heights, NSW 2234, Australia
Anna Sokolova
Affiliation:
Australian Centre for Neutron Scattering, Australian Nuclear Science and Technology Organisation, Lucas Heights, NSW 2234, Australia
Siegbert Schmid*
Affiliation:
School of Chemistry, The University of Sydney, Sydney NSW 2006, Australia
*
a)Author to whom correspondence should be addressed. Electronic mail: siegbert.schmid@sydney.edu.au
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Abstract

A series of phase transformations of a novel fluoroaluminosilicate glass forming a range of fluorapatite glass-ceramics on sintering are reported. The sintering process induces formation of fluorapatite, mullite, and anorthite phases within the amorphous silicate matrices of the glass-ceramics. The fluoroaluminosilicate glass, SiO2–Al2O3–P2O5–CaO–CaF2, is prepared from waste materials, such as rice husk ash, pacific oyster shells, and disposable aluminium cans. The thermally induced crystallographic and microstructure evolution of the fluoroaluminosilicate glass towards the fluorapatite glass-ceramics, with applications in dental and bone restoration, are investigated by powder X-ray diffraction and small-angle neutron-scattering techniques.

Keywords

fluorapatitemulliteanorthitespinodal decompositionglass-ceramic
Type
Technical Articles
Information
Powder Diffraction , Volume 32 , Supplement S2 , December 2017 , pp. S61 - S65
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Copyright
Copyright © International Centre for Diffraction Data 2017 

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