Characterization and testing of refractories for glass tank melters

Abstract

Current and future research goals in our laboratories include the study of the attack of glass-contact refractories and of crown refractories in glass tank melters, under either air-gas or oxyfuel conditions. There is an emphasis on evaluation and characterization of critical parameters of commercial refractories such as microstructure, porosity and mechanical properties. A second focus is the evaluation of the performance of refractory alternatives to traditional crown and superstructure refractories including their physical aspects, crown design, and joint quality.

Thermal expansion and Young's modulus evolution of fused silica and crystalline silica‐containing materials

“…This microstructural feature is also observed and addressed by Velez et al 19 Although optical microscopy images cannot directly verify the preceding statement, Velez et al confirmed it through the use of cathodoluminescence light microscopy. 19 Microstructural differences in FSB are easily visible in Figure 2B. Except for the cracks created during shaping, the cross-sectioned surfaces of aggregates were continuous and smooth.…”

“…Furthermore, these large grains contained small crystals that were determined to be cristobalite embedded in a matrix of tridymite and calcium-silicate bond, based on the manufacturing process and phase compositions shown in Figure 1A. This microstructural feature is also observed and addressed by Velez et al 19 Although optical microscopy images cannot directly verify the preceding statement, Velez et al confirmed it through the use of cathodoluminescence light microscopy. 19 Microstructural differences in FSB are easily visible in Figure 2B.…”

“…Although optical microscopy images cannot directly verify the preceding statement, Velez et al. confirmed it through the use of cathodoluminescence light microscopy 19 . Microstructural differences in FSB are easily visible in Figure 2B.…”