Results 1 to 10 of about 9,594 (227)

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

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

Study on the Effect of Binders on the Properties of Mullite Porous Ceramics for Flue Gas Filtration [PDF]

open access: yesE3S Web of Conferences, 2023
Fused mullite particles are used to prepare mullite porous ceramics by gel-casting method, using polysilicon waste and ρ-Al2O3 powder as the binder, and starch as the pore forming agent. The content of the pore forming agent was 20%, and the ratio of the
Liu Zhenli   +3 more
doaj   +1 more source

Research on thermal barrier and thermal shock resistance of NiCr−mullite composite ceramic coating

open access: yesFenmo yejin jishu, 2021
Five groups of the NiCr−mullite composite powders in various proportions were mixed by ball milling. The NiCr−mullite composite ceramic coatings on the 45 Steel were prepared by the supersonic plasma spraying.
CAO Yang   +4 more
doaj   +1 more source

Microwave sintering of mullite-Al2O3 from kaolin precursor [PDF]

open access: yesMaterials Research, 2014
In the present work the effect of the microwave hybrid fast sintering of mullite-Al2O3 with non-stoichiometric mullite composition was investigated. Samples were fast sintered using a range of microwave power from 1.2 to 2.1 kW. The mullitization process
Lilian Cecilia Reinoso Navarro   +2 more
doaj   +1 more source

Thermal insulating properties of hollow mullite fibers prepared on a ceiba bio-template

open access: yesOpen Ceramics, 2021
Ceiba fibers have excellent thermal insulating properties because of their hollow structures. Mullite fibers are widely used in heat-insulating refractory materials because of their low thermal conductivity and excellent thermal shock stability. However,
Ziwen Cheng   +3 more
doaj   +1 more source

Molten salt synthesis of mullite whiskers entirely derived from fly ash for electronic packaging toughening ceramic applications

open access: yesJournal of Materials Research and Technology, 2022
Preparation of mullite from high-alumina coal fly ash (CFA) has become one of the most important ways for high-value utilization. However, low Al2O3/SiO2 ratio, poor reaction activity and various impurities in fly ash led to poor quality of mullite ...
Jian-ming Gao   +4 more
doaj   +1 more source

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