CORDIERITE-INDIALITE-PSEUDOBROOKITE STRUCTURED CERAMIC BODIES, BATCH COMPOSITION MIXTURES, AND METHODS OF MANUFACTURING CERAMIC BODIES THEREFROM

摘要

A ceramic body exhibiting %P ≥ 50%, df ≤ 0.36, and a combined weight percentage of crystalline phases containing cordierite and indialite of at least 85 wt%, and up to 10 wt% of a crystalline pseudobrookite structured phase, such as armalcolite. The ceramic body contains, as expressed on an oxide basis, either: 1% wt% to 11% wt% titania and 89% wt% to 99% wt% MgO, Al₂O₃, and SiO₂ that have relative weight ratios of MgO:Al₂O₃:SiO₂ within the field defined by 15.6:34.0:50.4, 12.6:34.0:53.4, 13.9:30.7:55.4, and 16.9:30.7:52.4, or 2.5% to 11% titania and 89% wt% to 97.5% wt% MgO, Al₂O₃, and SiO₂ that have relative weight ratios of MgO:Al₂O₃:SiO₂ within the field defined by 15.6:34.0:50.4, 12.6:34.0:53.4, 12.0:35.7:52.3, and 15.0:35.7:49.3. Batch composition mixtures and methods of manufacturing ceramic bodies using the batch compositions are provided, as are other aspects.