Results 11 to 20 of about 8,938 (232)

Preparation of hollow fiber membranes from mullite particles with aid of sintering additives

open access: yesJournal of Advanced Ceramics, 2020
Porous mullite hollow fiber membranes were prepared with a combined phase-inversion and sintering method, using three sintering additives including yttrium stabilized zirconia (YSZ), small mullite particles (SMP), and titanium oxide (TiO2) to promote the
Xuechao Gao, Xuehong Gu
exaly   +2 more sources

Synthesis of 3:2 mullite ceramics from silica-enriched filter cake waste via diphasic gels method [PDF]

open access: yesScientific Reports
Mullite ceramics were synthesized from filter cake waste following the diphasic gel method. Filter cake waste, with over 65% silica content, and aluminum nitrate nonahydrate were utilized as the sources of silica and alumina, respectively.
Ermias Abebe Negash   +5 more
doaj   +2 more sources

Influence of iron on the mullite formation [PDF]

open access: diamondScience of Sintering
Influence of iron on the crystallization mechanism of mullite obtained from the hybrid gels and doped with different concentrations of iron was examined.
Ilić Svetlana   +6 more
doaj   +3 more sources

Mechanical properties and thermal stability of carbon fiber cloth reinforced sol-derived mullite composites

open access: yesJournal of Advanced Ceramics, 2019
For the wide application as thermal protection materials, it is very necessary for mullite ceramics to improve fracture toughness. In this paper, the laminated and stitched carbon fiber cloth preform reinforced mullite (C/mullite) composites were ...
Qingsong Ma   +2 more
exaly   +3 more sources

Effective Removal of Fe and Ca From Coal Fly Ash for High-Purity and High-Surface-Area Zeolite X Synthesis: A Comparative Study of Acid Refluxing and Acid Roasting Methods. [PDF]

open access: yesChemistryOpen
Coal fly ash (CFA) is an abundant industrial waste rich in silica and alumina and represents a viable feedstock for zeolite synthesis; however, high levels of calcium and iron limit zeolite purity and crystallisation. This study evaluates acid refluxing and acid roasting as pre‐treatment strategies for the simultaneous removal of Ca and Fe from high ...
Gaolefufa EMV   +4 more
europepmc   +2 more sources

Heat insulating properties of mullite hollow fibers prepared by using the template of reed fibers

open access: yesOpen Ceramics, 2023
Mullite fibers have a wide range of applications in thermal insulation. Currently, most mullite fibers produced have solid structures, limiting their heat-insulating properties.
Yuwei Gu   +3 more
doaj   +1 more source

Fabrication and characterization of porous mullite ceramics derived from fluoride-assisted Metakaolin-Al(OH)3 annealing for filtration applications

open access: yesOpen Ceramics, 2022
In this work, polycrystalline mullite whiskers are synthesized by fluoride-assisted method from metakaolin and several aluminum-containing compounds such as γ-Al(OH)3, AlF3·3H2O, and α-Al2O3 (corundum).
Amanmyrat Abdullayev   +8 more
doaj   +1 more source

AlF3-assisted flux growth of mullite whiskers and their application in fabrication of porous mullite-alumina monoliths

open access: yesOpen Ceramics, 2021
Mullite is a promising material with its competitive thermochemical and mechanical properties. Although mullite could be obtained by several synthesis methods, the flux method emerges with its advantages over other methods.
Amanmyrat Abdullayev   +4 more
doaj   +1 more source

The Influence of Mullite Shape and Amount on the Tribological Properties of Non-Asbestos Brake Friction Composites

open access: yesLubricants, 2022
For investigating the effect of mullite as a reinforced fiber of the non-asbestos brake friction material on the performance of brake pads, mullite reinforced composites with different contents (5% and 10%) and shapes (powder-based and fiber-based) were ...
Nan Wang, Zixin Yin
doaj   +1 more source

Thermal decomposition and reaction sintering for synthesis of mullite-zirconia composite using kaolin, γ-alumina and zirconia [PDF]

open access: yesCerâmica, 2021
The refractory materials used in the wall of the furnaces for glass melting can be prepared from mullite-zirconia composite material. The composite of mullite/zirconia was synthesized from Iraqi kaolin, γ-alumina, and zirconia using thermal decomposition
M. A. Aswad   +2 more
doaj   +2 more sources

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