Porous Media of LZSA Glass-Ceramic for Burner Applications

Abstract

A LZSA (Li2O-ZrO2-SiO2-Al2O3) glass-ceramic porous media produced by the replication method has been studied for relatively low temperature applications. Different suspensions have been tested, and appropriated parameters to obtain good impregnation and green strength were determined. The structures after the sintering process (975 °C for 120 min) were evaluated by scanning electron microscopy and showed a good reproducibility for the best tested suspensions (70.0 wt.% LZSA, 3.5 wt.% bentonite as binder and 1.5 wt.% Darvan 821A as dispersant) Strut and geometric densities were determined so that glass-ceramic foams with porosity of about 91% were obtained.

Technological Energy Efficiency Improvements in Glass-Production Industries and Their Future Perspectives in Italy

“…Installing porous-media combustion furnaces (porous-media combustion, PMC, or a porous burner) [33,34] Furnaces Furnaces Installing electric fusion furnaces [11,32,35] Furnaces Furnaces…”

Mullite Formation in Al2O3/SiO2/SiC Composites for Processing Porous Radiant Burners

“…Previous studies in our laboratory were performed using the replication method for processing of Li 2 O-ZrO 2 -SiO 2 -Al 2 O 3 (LZSA) glasses [10][11][12], ZrO 2 [13], Al 2 O 3 [14], and recently for SiC-based foams [15][16][17] similarly to Zhu et al [18][19][20]. From these analyzed porous systems, limitations assigned are thermal shock resistance of SiC and Al 2 O 3 , production costs of ZrO 2 and operation temperatures of LZSA.…”