Results 81 to 90 of about 938,170 (286)

Effect of nano-TiO2 on the initial corrosion behavior of the acrylic polyurethane coating/carbon steel interface in NaCl solutions

open access: yes工程科学学报, 2015
The initial corrosion behavior of the acrylic polyurethane coating/carbon steel interface in a 3.5% NaCl solution was in-situ investigated by electronic speckle pattern interferometry(ESPI),electrochemical impedance spectroscopy(EIS) and scanning ...
JIANG Hong-xia   +5 more
doaj   +1 more source

Nano Serpentine Powders as Lubricant Additive: Tribological Behaviors and Self-Repairing Performance on Worn Surface

open access: yesNanomaterials, 2020
Natural serpentine powders are applicable as additives for various lubricating oils. However, no uniform theories explain their tribological performance, lubrication, and wear mechanism, especially their self-repairing mechanism. Herein, the influence of
Binbin Wang   +6 more
doaj   +1 more source

Improve safety by reducing the impact of external corrosion on pipelines [PDF]

open access: yes, 2016
• Proactive prevention of corrosion defects from growing to a size that ultimately impacts a pipeline’s structural integrity • Continuous assessment to identify & address where corrosion has occurred, is occurring or may occur • Repairing corrosion ...
Hertelé, Stijn
core   +1 more source

Hydrogel‐Based Photothermal‐Catalytic Membrane for Efficient Cogeneration of Freshwater and Hydrogen in Membrane Distillation System

open access: yesAdvanced Functional Materials, EarlyView.
This work presents an overview of the PTC‐VMD system for water‐hydrogen co‐generation. a) Illustration of the hydrogel‐based PTC membrane and the co‐generation of water and hydrogen. b) Structure of the PTC‐VMD system and the functions of each component layer.
Jiawei Sun   +7 more
wiley   +1 more source

A minireview of hydroamination catalysis: alkene and alkyne substrate selective, metal complex design

open access: yesBMC Chemistry, 2019
Organic compounds that contain nitrogen are very important intermediates in pharmaceutical and chemical industry. Hydroamination is the reaction that can form C–N bond with high atom economy.
Jingpei Huo   +5 more
doaj   +1 more source

Ionic Liquid‐Based Reversible Metal Electrodeposition for Adaptive Radiative Thermoregulation Under Extreme Environments

open access: yesAdvanced Functional Materials, EarlyView.
A wideband tunable electrochromic device with dynamic thermal emissivity control is demonstrated. The system enables adaptive heat regulation via electrochemically modulated silver deposition, achieving efficient cooling and heating states. The flexible design ensures mechanical robustness under bending conditions, making it promising for portable and ...
Jiawei Liang   +10 more
wiley   +1 more source

Tribological properties of zwitterionic-anionic dual-crosslinked P(AAm-co-AAc-co-SBMA-co-AMPS)/Fe3+ hydrogel

open access: yesCailiao gongcheng
Hydrogel is an ideal material for cartilage repair, but it is difficult for artificial materials to achieve ultra-low friction coefficient of cartilage at present.
LI Ziheng   +4 more
doaj   +1 more source

Study of crevice-galvanic corrosion of aluminum [PDF]

open access: yes, 1967
Corrosion effects of aluminum-copper and aluminum-nickel couples in oxygenated distilled water, and aluminum alloys in oxygenated copper sulfate solution were studied. One of each of the couples had a water tight seal, and showed no substantial corrosion,
Draley, J. E., Loess, R. E., Mori, S.
core   +1 more source

Atomic Size Misfit for Electrocatalytic Small Molecule Activation

open access: yesAdvanced Functional Materials, EarlyView.
This review explores the application and mechanisms of atomic size misfit in catalysis for small molecule activation, focusing on how structural defects and electronic properties can effectively lower the energy barriers of chemical bonds in molecules like H2O, CO2, and N2.
Ping Hong   +3 more
wiley   +1 more source

Fluid–Structure Coupling Analysis of the Vibration Characteristics of a High-Parameter Spool

open access: yesFluids
High-performance control valves are essential components in power plants. High-parameter control valves are specialized valves for controlling high-pressure, high-flow, high-temperature, and highly corrosive media.
Haozhe Jin   +4 more
doaj   +1 more source

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