Effect of Cooling Rate on the Structure of CaO–SiO₂–CaF₂-based Glassy Mold Flux

Effect of Al 2 O 3 on viscosity and structure of CaO–SiO 2 –FeO t –(Al 2 O 3 )–BaO slag

“…No regular changes of characteristic peaks were found by the addition of Al 2 O 3 . The Raman spectra [SiO 4 ] tetrahedral structures from 800 to 1200 cm −1 could be further subdivided into Q 0 (840–870 cm −1 ), Q 1 (900–930 cm −1 ), Q 2 (950–980 cm −1 ) and Q 3 (1030–1060 cm −1 ), which related to SiO 4 4− (monomers), Si 2 O 7 6− (dimers), Si 2 O 6 4− (chains) and Si 2 O 5 2− (sheets) [36]. The Raman spectra from 800 to 1200 cm −1 were deconvoluted using the Gaussian method in PeakFit software, as shown in Figure 7 [37–40].…”

“…(dimers), Si 2 O 6 4− (chains) and Si 2 O 5 2− (sheets) [36]. The Raman spectra from 800 to 1200 cm −1 were deconvoluted using the Gaussian method in PeakFit software, as shown in Figure 7 [37][38][39][40].…”

Influence of BaO on viscosity and structure of CaO–SiO 2 –Fe t O–Al 2 O 3 –BaO steel slag

“…In addition, the characteristic peaks of [SiO 4 ] tetrahedral from about 800–1200 cm −1 could be further separated to different shift regions of 840–870, 900–930, 950–980 and 1030–1060 cm −1 , which were related to the structural units of Q 0 (SiO 4 4− ), Q 1 (Si 2 O 7 6− ), Q 2 (Si 2 O 6 4− ) and Q 3 (Si 2 O 5 2− ), respectively, responding to the FTIR analysis [41]. In order to quantitatively research the changes of four structural unites, the characteristic peaks from 800 to 1200 cm −1 were deconvoluted using Gaussian-function, as shown in Figure 6 [42–45].…”

“…), respectively, responding to the FTIR analysis [41]. In order to quantitatively research the changes of four structural unites, the characteristic peaks from 800 to 1200 cm −1 were deconvoluted using Gaussian-function, as shown in Figure 6 [42][43][44][45].…”

Comprehensive Understanding of the Role of Carbon Black in the Sintering and Melting Behavior of Mold Flux

“…The simultaneous existence of liquid slag film and solid slag film enables mold fluxes to realize the lubrication and heat transfer control at the same time. [10][11][12][13] Mold fluxes typically contain SiO 2 , CaO, Na 2 O, CaF 2 , and carbon additives with minor amounts of alkali metal oxides. Carbon additives play a vital role in the sintering and melting behaviors of mold flux during heating.…”