Results 21 to 30 of about 19,814 (230)

Fe-substituted mullite powders for the in situ synthesis of carbon nanotubes by catalytic chemical vapor deposition [PDF]

open access: yes, 2009
Powders of iron-substituted mullite were prepared by combustion and further calcination in air at different temperatures. A detailed study involving notably Mo¨ssbauer spectroscopy showed that the Fe3+ ions are distributed between the mullite phase and a
Agrell O.   +41 more
core   +2 more sources

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

Reactivity of aluminum sulfate and silica in molten alkalimetal sulfates in order to prepare mullite [PDF]

open access: yes, 2004
With the aim of preparing mullite, reactions between aluminum sulfate and silica in appropriate proportions and molten sulfate media M2SO4 (M=Na and/or K) were performed at different temperatures.
Durand, Bernard   +5 more
core   +2 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

A novel hollow alumina sphere-based ceramic bonded by in situ mullite whisker framework

open access: yesMaterials & Design, 2020
In this study, a novel hollow alumina sphere-based ceramic enhanced by in situ mullite whisker framework was recommended. Hollow alumina spheres selected as the main pore-forming agent were bonded together by an active mullite powder at high temperature.
Mengmeng Yang   +5 more
doaj   +1 more source

Preparation of mullite ceramics from bayer electrofilter fines and low kaolinite clay [PDF]

open access: yesScience of Sintering, 2016
In this paper are investigated microstructural, phase, physical and mechanical properties of mullite ceramics obtained from clay and Bayer electrofilter fines.
Tutić Erna   +2 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

Preparation of Silver- and Zinc-Doped Mullite-Based Ceramics Showing Anti-Bacterial Biofilm Properties

open access: yesMolecules, 2011
Zinc- and silver-doped mullite ceramic discs were prepared and tested as potentially resistant materials against bacterial adhesion and biofilm formation.
Suhair Saleh   +4 more
doaj   +1 more source

Novel Ceramics and Metal-Ceramic Composites via Fused Deposition Process [PDF]

open access: yes, 1999
Indirect fused·· deposition process is utilized.·.. to ·fabricate controlled porosity ceramic structures using alumina, mullite, zirconia, LSCF-perovskite, tricalcium phosphate and hydroxyapatite, where pore size, pore shape and pore connectivity are ...
Atisivan, Raj   +2 more
core   +1 more source

Fracture Behavior of Mullite Reticulated Porous Ceramics for Porous Media Combustion

open access: yesFrontiers in Chemistry, 2019
Mullite reticulated porous ceramics (RPC) are one of the key components for porous media burner, the mechanical properties of mullite RPC decided the service life of the burner.
Xiong Liang   +12 more
doaj   +1 more source

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