Tricalcium silicate T<inf>1</inf> and T<inf>2</inf> polymorphic investigations: Rietveld refinement at various temperatures using synchrotron powder diffraction
- Publication Type:
- Journal Article
- Journal of the American Ceramic Society, 2004, 87 (9), pp. 1625 - 1634
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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 (P1̄, 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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