Tricalcium Silicate T1 and T2 Polymorphic Investigations: Rietveld Refinement at Various Temperatures Using Synchrotron Powder Diffraction |
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| Authors: | Vanessa K. Peterson Brett A. Hunter Abhi Ray |
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| Affiliation: | Department of Chemistry, Materials and Forensic Science, University of Technology, Sydney, Broadway, New South Wales 2007, Australia;Australian Nuclear Science and Technology Organisation, Menai, New South Wales 2234, Australia |
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| Abstract: | The lattice parameters, cell volume, and structure of a sample of phase pure triclinic tricalcium silicate were determined using in situ, high-temperature synchrotron powder diffraction and full-profile Rietveld refinement. The temperature range covered was from ambient to 740°C. Evidence of superstructure was found. The T2 type structure with disordered SiO4 tetrahedra was observed, and an average structure for the subcell ( P , a = 11.7416(2) Å, b = 14.2785(2) Å, c = 13.7732(2) Å, α= 105.129(1)°, β= 94.415(1)°, and γ= 89.889(1)°) is presented. Differential thermal analysis and X-ray fluorescence was also performed. |
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| Keywords: | silicates temperature structure |
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