Results 71 to 80 of about 648,160 (293)

The synthesis of urchin-like γ-Al2O3 hierarchical microspheres from Al foils and its rapid adsorption ability towards Congo red

open access: yesMaterials Research Express, 2020
In this paper, we present a convenient hydrothermal method to synthesize hierarchical microspheres consisting of ammonium aluminum carbonate hydroxide (AACH) nanowires with a diameter of about 400 nm and length ∼50 μ m on aluminum foils.
Kaizhong Feng   +6 more
doaj   +1 more source

The influence of position in overlap joints of Mg and Al alloys on microstructure and hardness of laser welds [PDF]

open access: yes, 2013
Structure and properties of laser beam welding zone of dissimilar materials, AZ31 magnesium alloy and A5754 Aluminum alloy, are investigated. The microstructure and quality of the Mg/Al weld were studied by metallography, microhardness and optical ...
BANNOUR, Sana   +11 more
core   +1 more source

Self‐Powered, Ultra‐Sensitive InGaAs/ITO Nanowire Radial Junction Infrared Photodiode for Low Flux Imaging at Room Temperature

open access: yesAdvanced Functional Materials, EarlyView.
This study reports a self‐powered InGaAs nanowire photodetector achieving single‐photon‐level sensitivity in the shortwave infrared at non‐cryogenic temperatures. The device demonstrates high‐speed imaging capabilities even under extremely low‐flux conditions.
Kosala Dhanawansha   +10 more
wiley   +1 more source

Assessment of chromate and chromate-free conversion coatings for the corrosion protection of aerospace aluminum alloy [PDF]

open access: yes, 2013
Aerospace aluminum alloys, especially the most commonly used AA 2024 T3 alloy is often susceptible to corrosion in chloride containing environment. These alloys are phase separated, highly complex metal-in-metal composites and tend to have weakness ...
Balaraju, JN
core  

Ultra‐Thin Tow‐Based Discontinuous Composites—Material Overview and Aspirations

open access: yesAdvanced Functional Materials, EarlyView.
Tow‐based discontinuous composites made from ultra‐thin tapes offer outstanding in‐plane mechanical properties. This material, inspired by Nacre, has high volume fraction of tapes exceeding 90 % and allows for quasi‐isotropic material plates less than 100 micrometer in thickness.
Ioannis Katsivalis   +8 more
wiley   +1 more source

Ammonia Gas Adsorption in Fixed Bed and Fluidized Bed Using Bentonite Particles

open access: yesApplied Sciences
The present paper investigates the ammonia adsorption kinetic from air on sodium bentonite particles and on aluminum pillared bentonite particles in fixed bed and fluidized bed.
Gabriela Muntianu   +6 more
doaj   +1 more source

Improvement of piezoresistance properties of silicon carbide ceramics through co-doping of aluminum nitride and nitrogen [PDF]

open access: yes, 2008
The piezoresistance coefficient was measured on co-doped silicon carbide ceramics. Evaluation samples of alpha-silicon carbide ceramics were first fabricated by glass capsule HIP method using powder mixture of silicon carbide and aluminum nitride with ...
Kishimoto, Akira   +2 more
core   +1 more source

Bioinspired Adaptive Sensors: A Review on Current Developments in Theory and Application

open access: yesAdvanced Materials, EarlyView.
This review comprehensively summarizes the recent progress in the design and fabrication of sensory‐adaptation‐inspired devices and highlights their valuable applications in electronic skin, wearable electronics, and machine vision. The existing challenges and future directions are addressed in aspects such as device performance optimization ...
Guodong Gong   +12 more
wiley   +1 more source

Reactivity and burnability of cement raw materials witt high manganese content

open access: yesMateriales de Construccion, 1988
It has been verified that high manganese content in raw mixes causes alters the mineralogical composition of clinkers. New phases like 2 CaO.Mn02 and Ca2AIMnO5 are developed and C3A formation can be inhibited.
F. Puertas   +2 more
doaj   +1 more source

A Saturated and Unsaturated Backbone of the Products from the Reaction of 1, 2‐Diimine with Aluminum Precursors

open access: yesZeitschrift für anorganische und allgemeine Chemie, 2015
Abstract An aluminum(III) monohydride [(2, 6‐iPr2C6H3)NC(Me)]2AlH(NMe3) (1) was synthesized by oxidative addition of 1, 2‐diimine (L) {L = [(2, 6‐iPr2C6H3)NC(Me)]2} with equivalent amounts of H3Al·NMe3. A lithium salt (LLi2) was obtained when L was treated with elemental lithium.
Ju, Yingxin   +4 more
openaire   +2 more sources

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