Sintering and characterization of flyash-based mullite with MgO addition

Waste-to-resource preparation of a porous ceramic membrane support featuring elongated mullite whiskers with enhanced porosity and permeance

“…Pore size distribution was measured by a pore size distribution analyzer (PSDA-20, Nanjing Gaoqian function materials Co. Ltd., China) based on a gas-liquid displacement method. The pore diameter can be calculated from the Washburn's equation using the bubble-point method 22,25,26 :…”

“…19 Several approaches, such as addition of AlF 3 11,19,20 to starting material mixtures, are developed to produce mullite-whisker-reinforced composites. In order to further enhance mullite phase content at low temperatures, some sintering aids (such as V 2 O 5 , 21 MgO, 22 TiO 2 12 and WO 3 23 ) are used during fabrication of low-cost porous mullite. However, there are few reports with MoO 3 as sintering additive.…”

Technological properties of ceramic produced from steatite (soapstone) residues–kaolinite clay ceramic composites

“…Periclase contributes to sintering improvement and samples containing mullite displayed larger, more elongated grains with greater density, which consequently diminishes porosity and increases compressive strength (Viswabaskaran et al, 2004;Souto et al, 2009;Dong et al, 2011). The mullite is mainly seen at 1200°C in the P10 and P11 samples (Figs.…”

Facile Hydrothermal Synthesis of Zeolitic ANA Membrane from Raw Kaolin

“…More interestingly, mullite is a ceramic support gaining more popularity with its more advantages. That is it has a high melting point, superior high temperature strength, exceptional thermal shock resistance, oxidation resistance, high electrical resistivity and good chemical stability in harsh chemical environments [24,25]. It also can be produced from sintering process of fly ash and bauxite [25].…”

“…That is it has a high melting point, superior high temperature strength, exceptional thermal shock resistance, oxidation resistance, high electrical resistivity and good chemical stability in harsh chemical environments [24,25]. It also can be produced from sintering process of fly ash and bauxite [25]. Moreover, mullite based ceramics can be simply obtained by calcination of kaolin [26].…”