Results 11 to 20 of about 1,093 (197)

Synthesis of porous ceramic with well-developed mullite whiskers in system of Al2O3-Kaolin-MoO3

open access: yesJournal of Materials Research and Technology, 2021
Porous ceramics have the advantages of low density, low thermal conductivity, and excellent mechanical properties. One of the scalable methods for manufacturing porous ceramics is the replica method, which provides the advantage of high porosity and the ...
Cheol Shin   +6 more
doaj   +3 more sources

Preparation of mullite whiskers from high alumina fly ash and its reinforced porous structure

open access: yesJournal of Materials Research and Technology, 2023
Porous has been formed in samples when mullite whiskers are prepared by firing compacts of high-aluminum fly ash and ammonium aluminum sulfate hydrate with a small amount of sodium dihydrogen phosphate and SiO2 at high temperature for 4 h. The effects of
Bo Peng   +6 more
doaj   +3 more sources

Mechanical properties of large-sized thin architectural ceramic plate enhanced by alumina fibres and in situ mullite whiskers [PDF]

open access: yesProcessing and Application of Ceramics, 2022
The fibres reinforced thin architectural ceramic plates of 900×1800×2.5mm with excellent mechanical properties were prepared by fast-sintering method using a controllable fibre dispersion process.
Zhong Xinzi   +5 more
doaj   +1 more source

Preparation of mullite whiskers reinforced SiC/Al2O3 composites by microwave sintering [PDF]

open access: yesProcessing and Application of Ceramics, 2016
Mullite whiskers reinforced SiC/Al2O3 composites were prepared by microwave sintering in a microwave chamber with TE666 resonant mode. Original SiC particles were coated with SiO2 using sol-gel processing and mixed with Al2O3 particles.
Wei Li   +4 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

Filtering performance of ceramic filter with mullite whisker for non-exhaust particulate matter from transportation

open access: yesJournal of Materials Research and Technology, 2023
Fabrication and filtering performance of ceramic filter were investigated to reduce non-exhaust particulate matter (PM) from vehicles. For this purpose, filter needs to be porous structure with high mechanical strength, thus it can be operated with low ...
Cheol Shin   +6 more
doaj   +1 more source

Perspectives Toward Damage-Tolerant Nanostructure Ceramics. [PDF]

open access: yesAdv Sci (Weinh)
Selective topics of damage‐tolerant nanostructure ceramics, including elastic nano‐fibrous ceramic aerogels, load bearing nanoceramics, machine learning assisted simulations of microstructure‐properties relationship, are revived in the present manuscript.
Fan M, Wen T, Chen S, Dong Y, Wang CA.
europepmc   +2 more sources

Reaction synthesis of porous nano-structured mullite ceramic composites from alumina and zeolite-poor rock with enhanced strength and low thermal conductivity

open access: yesResults in Engineering, 2023
Porous mullite-based ceramics have been developed using a mixture of zeolite-poor rock and alumina through mechanical activation and reactive sintering.
Jamal Eldin F.M. Ibrahim   +4 more
doaj   +1 more source

Water vapor corrosion behavior and failure mechanism of air sprayed bi-layer Yb2Si2O7/SiC and tri-layer Yb2Si2O7/ (SiCw-Mullite)/SiC environmental barrier coating

open access: yesAdvanced Powder Materials, 2023
To improve the corrosion resistance of Cf/SiC composites in a water vapor oxygen coupled environment, the bi-layer Yb2Si2O7/SiC and tri-layer Yb2Si2O7/(SiCw-Mullite, SM)/SiC environment barrier coatings were designed and prepared on the surface of Cf/SiC
Pengju Chen   +5 more
doaj   +1 more source

Structure and composition characterization of submicronic mullite whiskers [PDF]

open access: yesJournal of Materials Research, 1991
Two sets of submicronic mullite whiskers, which have potential applications for fiber reinforced composites or as a thermal insulator, have been characterized to be tetragonal or orthorhombic using x-ray and electron microscopy techniques. The whiskers decompose upon heating under vacuum with a continuous loss of silicon and reduction in oxygen content
Merk, N., Thomas, G.
openaire   +2 more sources

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