Answers are grounded in this paper and cite their sources.
The effect of CaO/Al2O3 ratio on the structure of CaO–Al2O3–B2O3 based glassy mould fluxes was investigated by employing 27Al and 11B Triple Quantum Magic-angle spinning nuclear magnetic resonance (3QMAS-NMR) and Raman spectroscopy. 27Al and 11B 3QMAS-NMR spectrums showed that Al3+ mainly forms [AlO4] as a network former and B3+ mainly forms [BO3] groups in CaO–Al2O3–B2O3 based glasses. Raman spectrum showed existences of different [AlO4] structure units and BO3 pyro-borate units. In addition, deconvolution results on Raman spectrums indicate that the degree of polymerization of aluminate network in CaO–Al2O3–B2O3 based glasses decreases with the increase of CaO/Al2O3 ratio. The effect of CaO/Al2O3 ratio on viscosity of CaO–Al2O3–B2O3 based glassy mould fluxes was investigated by employing the rotating-cylinder method. The viscosity decreases with increasing CaO/Al2O3 ratio in CaO–Al2O3–B2O3 based mould flux. Correlation between viscosity and structural information of investigated mould fluxes was explored.
No takes yet. Share an insight, caveat, or question.
Li et al. (2020) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: