Results 51 to 60 of about 2,006 (195)

Formation of hierarchical Si3N4 foams by protein-based gelcasting and chemical vapor infiltration

open access: yesJournal of Advanced Ceramics, 2021
Silicon nitride foams with a hierarchical porous structure was formed by the combination of protein-based gelcasting, chemical vapor infiltration, and in-situ growth of silicon nitride nanowires.
Junsheng Li   +4 more
doaj   +1 more source

Vacuum balloon -- a 350-year-old dream

open access: yes, 2021
The centuries-old idea of a lighter-than-air vacuum balloon has not materialized yet as such structure needs to be both light enough to float in the air and strong enough to withstand atmospheric pressure.
Akhmeteli, Andrey, Gavrilin, Andrew V.
core   +1 more source

Chemo-Rheological Behavior of Aqueous Titanium Carbide Suspension and Evaluation of the Gelcasted Green Body Properties [PDF]

open access: yesMaterials Research, 2016
Gel-casting is an advanced colloidal processing method for fabricating ceramic green parts. In this project acrylamide-based monomers were used as a gelcasting system.
Hamze Foratirad   +2 more
doaj   +1 more source

HfB2-SiC-MoSi2 oxidation resistance coating fabricated through in-situ synthesis for SiC coated C/C composites [PDF]

open access: yes, 2017
A brand new HfB2-SiC-MoSi2 coating was fabricated to protect carbon/carbon (C/C) composites with inner SiC coating from oxidation, which was prepared by in-situ synthesis.
Hou, Xianghui   +5 more
core   +2 more sources

Gelcasting of Alumina with Application of New Monomer Synthesised from Xylitol

open access: yesArchives of Metallurgy and Materials, 2013
Podążając za trendem „zielonej chemii", zakładającym m.in. wykorzystywanie nietoksycznych i odnawialnych surowców w technologii, zaprojektowano i zsyntezowano nowy monomer przeznaczony do zastosowania w procesie odlewania żelowego.
Szudarska A.   +3 more
doaj   +1 more source

Influence of the acrylamide-based monomer on the sintering of ceramics shaped by gelcasting

open access: yesOpen Ceramics, 2023
Alumina ceramics were prepared by gelcasting, based on an in-situ polymerization that promotes the formation of homogeneous green ceramic parts and allows the preparation of complex shapes and/or large-size ceramics.
Laurie Gaüzère   +5 more
doaj   +1 more source

Freeform Fabrication of Ionomeric Polymer-Metal Composite Actuators [PDF]

open access: yes, 2005
Ionomeric polymer-metal composite (IPMC) actuators are a type of soft electromechanically active material which offers large displacement, rapid motion with only ~1V stimulus.
Lipson, Hod, Malone, Evan
core   +3 more sources

Thermal stability of hollow YSZ microspheres and processing of their porous materials

open access: yesJournal of Asian Ceramic Societies, 2019
Hollow yttria-stabilized zirconia (YSZ) microspheres with a diameter of 1.2–5.1 μm and a wall thickness of about 125 nm were synthesized, and their thermal stability was revealed for a hold time of 1 h at temperatures of 800°C, 1000°C and 1200°C.
Qi Guo, Yufu Liu
doaj   +1 more source

Bioactive glass-ceramic scaffolds from novel 'inorganic gel casting' and sinter-crystallization [PDF]

open access: yes, 2017
Highly porous wollastonite-diopside glass-ceramics have been successfully obtained by a new gel-casting technique. The gelation of an aqueous slurry of glass powders was not achieved according to the polymerization of an organic monomer, but as the ...
Bernardo, Enrico   +5 more
core   +2 more sources

Espumas vítreas do sistema Li2O-ZrO2-SiO2-Al2O 3 produzidas pelo processo gelcasting Li2O-ZrO2-SiO2 -Al2O3 glass-ceramic foams produced by the gelcasting process

open access: yesCerâmica, 2009
Espumas vítreas do sistema Li2O-ZrO2-SiO2-Al2O 3 (LZSA) foram produzidas pelo processo gelcasting, associado à aeração de suspensões cerâmicas, sem controle atmosférico. Por meio da adição de diferentes concentrações de agente espumante (Fongraminox) foi
E. de Sousa   +4 more
doaj   +1 more source

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