
%0 Journal Article
%A Prodjosantoso, A. K. 
%A Kennedy, Brendan J. 
%A Hunter, Brett A. 
%T Synthesis and Structural Studies of Strontium-Substituted Tricalcium Aluminate Ca<emph type="8">3-</emph><emph type="8"><emph type="2">x</emph></emph>Sr<emph type="8"><emph type="2">x</emph></emph>Al<emph type="8">2</emph>O<emph type="8">6</emph>
%J Australian Journal of Chemistry
%D 2000/06/26
%V 53
%N 3
%P 195-202
%K X-Ray diffraction; Rietveld analysis; Portland cement; aluminium oxides.
%R https://doi.org/10.1071/CH99142
%U https://www.publish.csiro.au/paper/CH99142 
%X A series of 27 oxides of the type Ca3&#8211;xSrxAl2O6, 3 &pound; x &pound; 0, were prepared as polycrystalline powders. The compounds are isostructural with Ca3Al2O6, space group Pa3&#8211;, and their structures were refined from powder neutron and/or X-ray diffraction data by using the Rietveld method. The evolution of Ca/Sr site occupancies, with x, was determined. It was found that the Ca and Sr cations display strong site selectivity, the smaller Ca 2+ cations preferentially occupying the six-coordinate sites. The relationship between the observed structures and the reactivity of Ca3Al2O6 in Portland cement is discussed. 
