Results 131 to 140 of about 1,565,571 (246)

A Thermodynamic 3D Model for the Simulation of Diffusion‐Controlled Alloying Processes in Heterogeneous Material Structures

Advanced Engineering Materials, EarlyView.
A numerical model resulting from irreversible thermodynamics for describing transport processes is introduced, focusing on thermodynamic activity gradients as the actual driving force for diffusion. Implemented in CUDA C++ and using CalPhaD methods for determining the necessary activity data, the model accurately simulates interdiffusion in aluminum ...
Ulrich Holländer, Leonhard Holländer, André Langohr, Hans Jürgen Maier   +3 more
wiley   +1 more source

Mecanismo de selección de consorcios bacterianos compatibles con A. ferrooxidans y A. thiooxidans en procesos de biodesulfurización de carbón

Revista Facultad de Ingeniería Universidad de Antioquia, 2010
A nivel de erlenmeyer, se evaluaron procesos de biodesulfurización de un carbón rico en azufre con un tamaño de partícula entre 0,24 cm - 0,06 cm, empleando consorcios bacterianos de cepas compatibles con Acidithiobacillus ferrooxidans y compatibles con ...
Gerardo Andrés Caicedo, Marco Antonio Márquez   +1 more
doaj  

Zein‐Based Adhesives: Sustainable Extraction and Application in Bioadhesive Technologies

Advanced Engineering Materials, EarlyView.
Zein is extracted from corn gluten meal using a simple and scalable process with high yield (~90%). The resulting protein is applied in bioadhesives modified with Ca2+ and Fe3+ ions, exhibiting substrate‐dependent adhesion. The findings demonstrate competitive bonding performance and highlight the role of ionic interactions in tuning adhesion ...
Paula Bertolino Sanvezzo, Daniela Winsley Valereto Friozi, Vinícius de Oliveira, Marcia Cristina Branciforti   +3 more
wiley   +1 more source

Microstructural Evolution and Vacancy Defect Formation in Mn–Mo–Ni RPV Steel Under Low Cycle Fatigue: Insights From EBSD and PALS

Advanced Engineering Materials, EarlyView.
Low‐cycle fatigue damage in Mn–Mo–Ni reactor pressure vessel steel is examined using a combined electron backscatter diffraction and positron annihilation lifetime spectroscopy approach. The study correlates texture evolution, dislocation substructure development, and vacancy‐type defect formation across uniform, necked, and fracture regions, providing
Apu Sarkar, Dhanadeep Dutta, G. Bharat Reddy   +2 more
wiley   +1 more source

Reduction of Oxide Inclusions During the High‐Frequency Welding of Steel via a Nonthermal Ar/H2 Plasma Jet

Advanced Engineering Materials, EarlyView.
High‐frequency (HF) welding of steel is limited by oxide inclusions that degrade weld quality. This study demonstrates, for the first time, the integration of a nonthermal Ar/H2 dielectric barrier discharge (DBD) plasma jet into HF welding. Local plasma treatment provides effective shielding and in‐situ oxide reduction, resulting in markedly fewer and ...
Viktor Udachin, Lienhard Wegewitz, René Gustus, Henning Wiche, Wolfgang Maus‐Friedrichs   +4 more
wiley   +1 more source

MATERIALES COMPUESTOS DE MATRIZ POLIMÉRICA USADOS PARA EL BLINDAJE DE INTERFERENCIA ELECTROMAGNÉTICA

Ciencia e Ingeniería Neogranadina, 2017
Este trabajo tiene como propósito revisar el estado del arte en la síntesis y caracterización de materiales de matriz polimérica reforzados con compuestos a base de carbón o ferritas para su uso como materiales ...
Andrés Orlando Garzón Posada, David Arsenio Landínez Téllez, Jairo Roa Rojas, José Ramos Barrado   +3 more
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Handbook of Establishing and Maintaining Oxygen‐Free Atmospheres

Advanced Engineering Materials, EarlyView.
This study presents a practical framework for creating oxygen‐free atmospheres at ambient pressure using silane‐doped inert gases. The results show that ultra‐low oxygen levels and strongly reduced water content can be achieved through controlled silane dosing, drying systems, and sensor monitoring.
Sascha Jan Zimmermann, René Gustus, Lienhard Wegewitz, Wolfgang Maus‐Friedrichs   +3 more
wiley   +1 more source

Additive Gaussian Process Regression for Predictive Design of High‐Performance, Printable Silicones

Advanced Engineering Materials, EarlyView.
A chemistry‐aware design framework for tuning printable polydimethylsiloxane (PDMS) for vat photopolymerization (VPP) is developed using additive Gaussian process (GP) modeling. Polymer network mechanics informs variable groupings, feasible formulation constraints, and interaction variables.
Roxana Carbonell, Martha Leach, Hongtao Song, Carolyn Seepersad   +3 more
wiley   +1 more source

CARBÓN OBTENIDO POR ACTIVACION FÍSICA DE SEMILLA DE MAMEY (MAMEY) Y SU USO COMO ADSORBENTE DE IONES COBRE (II)

Revista Centro Azúcar
Introducción: Los carbones obtenidos por activación química y física son buenos adsorbentes de gases, moléculas e iones en solución acuosa. Objetivo: Obtener los parámetros matemáticos de los procesos cinéticos, termodinámicos y difusivos del sistema ...
Julio Omar Prieto García, Ariel Pérez Leiva, Alfredo E. Curbelo Sánchez, Mixary Enríquez García, Ángel Mollineda Trujillo   +4 more
doaj  

Regularidades cinéticas de la reducción carbotérmica de la laterita ferruginosa del yacimiento Mina Martí, Nicaro

Minería y Geología, 2014
La reducción en condiciones no isotérmicas de la mena laterítica ferruginosa de un yacimiento de Nicaro fue estudiada usando en esta ocasión como reductores carbón puro, carbón antracita y finos de carbón coque. Se empleó análisis termogravimétrico en un
Jesús Ortíz-Bárcenas, Julio C. Llópiz-Yurell   +1 more
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