Microstructure and performances of glasses melt under oxy-fuel combustion

We prepared a series of glass samples under the different simulated atmosphere. Systematic evaluation about the performances of the glasses fabricated under the different simulated atmosphere indicates that the increase of the H2O:CO2 ratio under the simulated atmosphere will decrease the softening point temperature, microhardness, viscosity, and chemical resistance, while increase the thermal expansion coefficient. Through the analysis of the hydroxyl content and network structure according to the IR transmitting spectra and NMR spectra, the structural origin of the evolution of the performances for the samples fabricated under different simulated atmosphere was elucidated. According to the feedback information from the customers, despite the decrease of some performances, the glass produced under oxy-fuel combustion can also fulfill the requirements of the engineering applications. Therefore, the technique of oxy-fuel combustion is worthy to be promoted in glass industry.