Results 41 to 50 of about 26,906 (290)

Remoção de aluminio monomérico de água para abastecimento através da ação da carboximetilcelulose e da quitina [PDF]

open access: yes, 2012
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico, Programa de Pós-graduação em Engenharia AmbientalExistem cada vez mais evidências de que o alumínio é prejudicial para a saúde.
Tarpani, Raphael Ricardo Zepon
core  

Accurate modeling of aluminum-doped silicon

open access: yes, 2011
We present a detailed study on accurate modeling of highly aluminum-doped p+ silicon. We have analyzed the influence of defect recombination and the effect of incomplete ionization on the saturation current densities of Al-p+ regions featuring different ...
Rüdiger, Marc   +10 more
core   +2 more sources

Exploration of Pseudobinary Alloys (Al–Mn)‐(Co–Fe–Ni) to Design High‐Entropy and Compositionally Complex Alloys to Stabilize the τ Phase in Al–Mn‐Based Ferromagnetic Alloys

open access: yesAdvanced Engineering Materials, EarlyView.
This experimental study investigates the thermodynamic limits of the Al–Mn τ ferromagnetic phase within complex‐composition alloys (CCAs). Using nine rare‐earth‐free compositions, it explores a broad region of the pseudobinary AlMnCoFeNi system. The results reveal intricate links between composition, phase stability, and magnetic behavior, highlighting
Sacha Plagnol‐Chauzu   +4 more
wiley   +1 more source

Effects of Al3+ Substitution on Structural and Magnetic Behavior of CoFe2O4 Ferrite Nanomaterials

open access: yesNanomaterials, 2018
A sol-gel autocombustion method was used to synthesize Al3+ ion-substituted cobalt ferrite CoAlxFe2−xO4 (x = 0–1.5). According to X-ray diffraction analysis (XRD), cobalt ferrite was in a single cubic phase after being calcined at 1000 °C
Qing Lin   +5 more
doaj   +1 more source

Evaluating the aluminum-alloyed p+-layer of silicon solar cells by emitter saturation current density and optical microspectroscopy measurements

open access: yes, 2013
S.441-447Surface-passivated and surface-unpassivated aluminum-alloyed p +-layers are characterized. By varying the firing conditions and the thickness of the screen-printed aluminum paste, different sheet resistances Rsh of the p+-layer were fabricated ...
Warta, Wilhelm   +9 more
core   +1 more source

Designing Polymer Nanocomposites for X‐Ray Shielding: Mechanisms, Architectures, and Scalable Processing

open access: yesAdvanced Engineering Materials, EarlyView.
This review highlights advances in lightweight, lead‐free polymer nanocomposites for diagnostic X‐ray shielding. By linking filler chemistry, dispersion, architecture, and photon interaction mechanisms, it establishes structure–performance relationships guiding material design.
Aklilu G. Messele   +2 more
wiley   +1 more source

INFLUENCE OF FLUX COMPOSITION ON HYDROGEN CONTENT IN ALUMINUM MELTS [PDF]

open access: yes, 2020
Текст статьи не публикуется в открытом доступе в соответствии с политикой журнала.The paper is aimed at evaluating the quality and performance characteristics of industrial fluxes, which are intended for refining processing of aluminum melts and used in ...
Prusov, E. S.   +6 more
core  

Grain Refinement During Severe Plastic Deformation and Similitude of Subgrain Formation: A Molecular Dynamics Study

open access: yesAdvanced Engineering Materials, EarlyView.
Molecular dynamics is used to investigate structure refinement during severe plastic deformation. The results show similitude with experimental data. Molecular dynamics simulations of severe plastic deformation of monocrystalline and polycrystalline samples by multiaxial compression of aluminum are carried out.
Roberto B. Figueiredo
wiley   +1 more source

The Effect of the Processing Parameters on the Properties of the Liquid Phase Spark Plasma Sintered 80Fe-20(Al + MWCNT) Magnetic Metal Matrix Nanocomposites

open access: yesMetals, 2020
In this paper, the liquid phase sintering was performed using spark plasma sintering to produce iron (Fe: 80 vol%)–aluminum (Al)–multi-walled carbon nanotubes (MWCNTs) magnetic hybrid metal matrix nanocomposites. The properties of the nanocomposites were
Alexandre Tugirumubano   +4 more
doaj   +1 more source

Magnetic and Resonance Properties of a Low-Dimensional Cobalt–Aluminum Oxide–Germanium Film Tunnel Junction Deposited by Magnetron Sputtering

open access: yesMagnetochemistry, 2022
The temperature behavior of saturation magnetization and the temperature behavior of the integral signal intensity in electron magnetic resonance spectra is experimentally studied comprehensively using a low-dimensional Al2O3/Ge/Al2O3/Co (aluminum oxide ...
Aleksandr V. Kobyakov   +6 more
doaj   +1 more source

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