Results 21 to 30 of about 8,938 (232)

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

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

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

A Novel Nanostructured Mullite Feedstock for Environmental Barrier Coatings via Atmosphere Plasma Spraying

open access: yesCrystals, 2022
A novel strategy is proposed to design an exclusive nanostructured mullite spherical feedstock for environmental barrier coatings (EBCs) via atmosphere plasma spraying (APS).
Fei Xiao   +7 more
doaj   +1 more source

Cobalt incorporation in mullite [PDF]

open access: yesActa Crystallographica Section A Foundations of Crystallography, 2005
Mullite (nominally 3Al_2O_3.2SiO_2) is technologically important material for advanced ceramics applications. Depending on the synthesis procedure, mullite is able to incorporate considerable amounts of transition metal cations [1]. While Cr^3+, Fe^3+ and V^3+ have the strongest tendency of incorporation in mulllite, only low or very low amounts of Fe ...
Kurajica, Stanislav   +3 more
openaire   +3 more sources

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 properties of silica-based ceramic cores modified by mullite powders with different particle sizes

open access: yesJournal of Aeronautical Materials, 2021
Ceramic cores provide complex internal cavity structures in the investment precision castings of hollow blades for aero-engine. The silica/mullite ceramic cores were fabricated by hot injection molding, adding fused mullite powders with different ...
WU Xiaofei   +5 more
doaj   +1 more source

Hydrous Carbonatitic Liquids Drive CO2 Recycling From Subducted Marls and Limestones

open access: yesGeophysical Monograph Series, Page 209-221., 2020

This book is Open Access. A digital copy can be downloaded for free from Wiley Online Library.

Explores the behavior of carbon in minerals, melts, and fluids under extreme conditions

Carbon trapped in diamonds and carbonate-bearing rocks in subduction zones are examples of the continuing exchange of substantial carbon ...
Erwin Schettino, Stefano Poli
wiley  

+1 more source

Home - About - Disclaimer - Privacy