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FTIR and Raman spectroscopic investigation on the structure of CaO-SiO -TiO ternary slags

TMS Annual Meeting, Page: 3-10
2014
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Conference Paper Description

The structures of CaO-SiO-TiO slags with CaO/SiO=1.1 vvere investigated by FTIR and Raman. Gaussian deconvolutions of the FTIR and Raman spectroscopic curves indicated the variation of the structural units in the slags. The deconvoluted results of the Raman spectra showed that the silicate network was more depolymerized with the increase of TiO and octahedral Ti in the slags plays a role of network modifier. The deconvolution of the FTIR spectra revealed the rate of Q(Si-O tetrahedral with three bridging oxygens) and Q (Si-O tetrahedral with two bridging oxygens) decreased while the rate of Q (Si-O tetrahedral with one bridging oxygen) and Q (Si-O tetrahedral without bridging oxygen) increased when increased TiO from 0% to 10%. However, the rates of Q Q > Q and Q changed little with the increase of Ti0 from 10% to 15%. Copyright © 2014 by The Minerals,Metals & Materials Society.

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