Results 21 to 30 of about 560,963 (375)

Manufacturing and characterization of sustainable macroporous glass foams [PDF]

open access: yesCerâmica, 2022
This work produced glass foams from soda-lime glass bottles, bentonite, and alumina by the replica method. Compositions with different contents of bentonite (5, 10, 15, and 20 wt%) were prepared and heat-treated at 800 °C.
S. K. F. da Silva   +6 more
doaj   +1 more source

Bioinspired nacre-like alumina with a bulk-metallic glass-forming alloy as a compliant phase

open access: yesNature Communications, 2019
Bioinspired ceramics with micron-scale ceramic “bricks” bonded by a metallic “mortar” are projected to result in higher strength and toughness ceramics, but their processing is challenging as metals do not typically wet ceramics.
A. Wat   +12 more
semanticscholar   +1 more source

Wetting and bonding characteristics of selected liquid-metals with a high power diode laser treated alumina bioceramic [PDF]

open access: yes, 2004
Changes in the wettability characteristics of an alumina bioceramic occasioned by high power diode laser (HPDL) surface treatment were apparent from the observed reduction in the contact angle.
Bahners T.   +14 more
core   +1 more source

Sodium Plating from Na‐β″‐Alumina Ceramics at Room Temperature, Paving the Way for Fast‐Charging All‐Solid‐State Batteries

open access: yesAdvanced Energy Materials, 2019
All‐solid‐state batteries with an alkali metal anode have the potential to achieve high energy density. However, the onset of dendrite formation limits the maximum plating current density across the solid electrolyte and prevents fast charging.
Marie-Claude Bay   +5 more
semanticscholar   +1 more source

Influence of crystalization temperature on morphological properties of dibutylphtalate alumosilicate adsorbents

open access: yesZaštita Materijala, 2017
Alumosilicates have advantages over other adosrbents because they have high adsorption capacity and high selectivity. Due to this fact, the paper investigates the synthesis and characterization of the aluminosilicate materialused as a potential adsorbent
Miladin Gligorić, Zoran Obrenović
doaj   +1 more source

Mechanical and tribological properties of Fe/Cr-FeAl2O4-Al2O3 nano/micro hybrid composites prepared by Spark Plasma Sintering [PDF]

open access: yes, 2011
Fe/Cr–Al2O3 nanocomposite powders are prepared by H2 selective reduction of oxide solid solutions. These powders, an alumina powder and a starting oxide powder, are sintered by spark plasma sintering.
Chevallier, Geoffroy   +5 more
core   +2 more sources

The effect of chemical and mineralogical composition of red mud on alkalinity parameters

open access: yesZaštita Materijala, 2017
Red mud is highly alkaline colloidal suspension, which remains after processing bauxite into alumina by Bayer’s proceedings. Despite repeated washing red mud keep strong alkalinity, due to the presence of residual base and a number of alkaline minerals ...
Ljubica Vasiljević, Gordana Ostojić
doaj   +1 more source

Gas and surface diffusion in modified γ-alumina systems [PDF]

open access: yes, 1989
The transport of pure gases through a microporous membrane is described. The alumina-based membrane (pores 2.5-4 nm) is suitable for Knudsen diffusion separation.
Burggraaf, A.J.   +2 more
core   +2 more sources

Alumina-coated hollow glass spheres/alumina composites

open access: yesJournal of Materials Science, 1997
Coating of alumina onto the surface of hollow glass spheres was accomplished by controlled heterogeneous precipitation from aqueous solutions. The processing conditions were optimized to yield thin and uniform precursor coatings. After calcination, converting the precursor to alumina, the alumina-coated hollow glass spheres formed free-flowing powders ...
Wu, S., Jonghe, L.C. De
openaire   +2 more sources

A soft sensor for the Bayer process

open access: yesJournal of Mathematics in Industry, 2017
A soft sensor for measuring product quality in the Bayer process has been developed. The soft sensor uses a combination of historical process data recorded from online sensors and laboratory measurements to predict a key quality indicator, namely ...
Vincent Cregan   +2 more
doaj   +1 more source

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