Results 91 to 100 of about 177,448 (295)

Corrosión por depósitos salinos de los aceros SA213-T22 y SA213-TP347H en presencia de una mezcla 80%V2O5-20%Na2SO4-20%Na2SO4

open access: yesRevista de Metalurgia, 1998
Muchos problemas de corrosión por depósitos salinos en la industria eléctrica, especialmente en los generadores de vapor, se deben al ataque por sales fundidas.
F. Almeraya   +4 more
doaj   +1 more source

Estudio de laboratorio de la susceptibilidad a la corrosión intergranular del cinc y su relación con el contenido de aluminio [PDF]

open access: yes, 1970
A method of test for determining the susceptibility of zinc to the intergranular corrosion was developped, considering that the action of water steam on zinc produces the mentioned type of corrosion. Local and foreing specimens have been studied. In the
Clinkspoor, G.C.   +2 more
core  

Fast‐Responding O2 Gas Sensor Based on Luminescent Europium Metal‐Organic Frameworks (MOF‐76)

open access: yesAdvanced Functional Materials, EarlyView.
Luminescent MOF‐76 materials based on Eu(III) and mixed Eu(III)/Y(III) show rapid and reversible changes in emission intensity in response to O2 with very short response times. The effect is based on triplet quenching of the linker ligands that act as photosensitizers. Average emission lifetimes of a few milliseconds turn out to be mostly unaffected by
Zhenyu Zhao   +5 more
wiley   +1 more source

Estudio de las propiedades mecánicas de armaduras corroídas cuando se modifica la velocidad de deformación [PDF]

open access: yes, 2016
Estudio de la evolución de las propiedades mecánicas del acero en función de su nivel de corrosión y de la velocidad de ...
Cobo Escamilla, Alfonso   +2 more
core  

Evaluación del comportamiento estructural y de resistencia a la corrosión de armaduras de acero inoxidable austenítico AISI 304 y dúplex AISI 2304 embebidas en morteros de cemento Portland [PDF]

open access: yes, 2012
Se ha evaluado el comportamiento mecánico y estructural de dos aceros inoxidables corrugados, el austenítico EN 1.4301 (AISI 304) y el dúplex EN 1.4362 (AISI 2304), y se han comparado con el tradicional acero al carbono B500SD. El estudio se ha realizado
A. Cobo   +5 more
core   +4 more sources

Electroactive Metal–Organic Frameworks for Electrocatalysis

open access: yesAdvanced Functional Materials, EarlyView.
Electrocatalysis is crucial in sustainable energy conversion as it enables efficient chemical transformations. The review discusses how metal–organic frameworks can revolutionize this field by offering tailorable structures and active site tunability, enabling efficient and selective electrocatalytic processes.
Irena Senkovska   +7 more
wiley   +1 more source

Functional Materials for Environmental Energy Harvesting in Smart Agriculture via Triboelectric Nanogenerators

open access: yesAdvanced Functional Materials, EarlyView.
This review explores functional and responsive materials for triboelectric nanogenerators (TENGs) in sustainable smart agriculture. It examines how particulate contamination and dirt affect charge transfer and efficiency. Environmental challenges and strategies to enhance durability and responsiveness are outlined, including active functional layers ...
Rafael R. A. Silva   +9 more
wiley   +1 more source

ESTUDIO CATÓDICO DE CINÉTICA DE CORROSIÓN DEL ACERO AL CARBÓN EN FLUIDO GEOTÉRMICO MEDIANTE UN ELECTRODO DE DISCO ROTATORIO

open access: yesIngeniería, 2011
En este estudio se realizan curvas de polarización catódica del acero ASTM A-36 en fluido geotérmico, utilizando un electrodo de disco rotatorio a diferentes velocidades de giro, con el objetivo de caracterizar su mecanismo cinético. Se obtuvieron curvas
Mario Alberto Vega León
doaj   +1 more source

A Termite‐Inspired Alternative to Cement

open access: yesAdvanced Functional Materials, EarlyView.
A termite‐inspired composite of clay, cellulose, and lignin forms a dense fibrous network with concrete‐like strength (32 MPa) and superior elasticity, processed at ambient temperature. Abstract Clay combined with organic materials is used by termites as a strong and durable construction material for their mounds with minimal environmental impact. Here,
Oren Regev   +3 more
wiley   +1 more source

Unveiling soil bacterial ecosystems in andean citrus orchards of Santander, Colombia

open access: yesFrontiers in Ecology and Evolution
Citrus cultivation is vital to global agriculture, necessitating a comprehensive understanding of the soil microbiome’s diversity for sustainable practices.
Genis Andrés Castillo-Villamizar   +6 more
doaj   +1 more source

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