Small angle neutron scattering study of a gehlenite-based ceramic fabricated from industrial waste

This paper presents a small angle neutron scattering (SANS)study of a novel porous gehlenite-based ceramic, synthesised from a homogeneous powder mixture of soda-lime-silicate (SLS)glass,α-alumina, calcite and calcium fluoride via solid-state sintering at 1200 °C. The products of sintering at single temperatures from 600 to 1200 °C are examined by X-ray diffraction (XRD). Sintering of the mixture below1200 °C forms two intermediate phases (Na2CaSi3O8and Ca4Si2O7F2). Nepheline and α-alumina are minor phases in the gehlenite-based ceramic fabricated through sintering at 1200 °C. The microstructure of the gehlenite-based ceramic is investigated using field-emission scanning electron microscopy (FESEM) and SANS at the Australian Centre for Neutron Scattering. This study also evaluated the specific surface area of the gehlenite-based ceramic (~3.0 m2cm–3) from quantitative analysis of SANS data. ©2019 Trans Tech Publications, Switzerland

Keywords

Small angle scattering, ANSTO, Microstructure, Electron microscopy, Homogeneous mixtures, Calcite, Calcium fluorides

Citation

Loy, C. W., Matori, K. A., Zainuddin, N., Whitten, A. E., de Campo, L., Nasir, N. I. M., Pallan, N. F. B., Zaid, M. H. M., Alassan, Z. N., & Schmid, S. (2019). Small angle neutron scattering study of a gehlenite-based ceramic fabricated from industrial waste. Paper pesented to 6th International Conference on Solid State Science and Technology (ICSSST 2017) and Workshop on Advanced Materials Technology: Growth and Characterization, Pulau Pinang, Malaysia, 17 November 2017. In I. Shahrim Mustafa, S. N. Mohamad, & F. H. A. Suhaimi (Eds.), Solid State Phenomena VI: 6th International Conference on Solid State Science and Technology (6th ICSSST), (Vol. 290, pp. 22-28). Trans Tech Publications Ltd. doi: 10.4028/www.scientific.net/ssp.290.22