Results 81 to 90 of about 229,924 (266)

Bis(4-aminophenylhydroxamato-κ2O,O′)copper(II) methanol disolvate

open access: yesIUCrData, 2018
In the title complex, [Cu(C7H7N2O2)2]·2CH3OH, the metal centre is coordinated by two 4-aminophenylhydroxamate bidentate ligands, in a distorted square-planar geometry. The asymmetric unit is completed by two methanol solvent molecules, which are involved
Yansi Zhao, Yanmei Chen
doaj   +1 more source

Copper complexes of polyazacryptands. [PDF]

open access: yes, 1999
Dicopper complexes of L1-L5, which are obtained from [2+3] condensation of tris-(2-aminoethyl)amine with a series of dialdehydes, have been synthesized. X-ray structure determination has been carried on [Cu2L1]O3SCF3]2, [Cu2L2][BF4]2, [Cu2L4][ClO4]2, and [Cu<2(L5-3H)]C104.
openaire   +1 more source

In Situ Micromechanical Study of Bimodal γ′–γ″ Precipitate Assemblies in Ni–Cr–Al–Nb Superalloy

open access: yesAdvanced Engineering Materials, EarlyView.
A Ni–Cr–Al–Nb superalloy with a bimodal γ′–γ″ precipitate distribution is developed. Composite precipitate assemblies form through heterogeneous nucleation, effectively impeding dislocation motion. Micropillar compression reveals high strength at room and elevated temperatures, governed by precipitate shearing, with coupled faulting mechanisms ...
Ujjval Bansal   +4 more
wiley   +1 more source

Study on synthesis and structural characterization of copper threonate

open access: yesSiliao yanjiu, 2022
The study was to prepare copper threonine by liquid phase method. The chelate of copper threonine was prepared from copper sulfate pentahydrate and threonine.
PENG Hong-xing   +4 more
doaj  

Electrochemical Behavior of Flame‐Sprayed Sc‐Doped AlCoCrFeMo High‐Entropy Alloy Coatings in 3.5% Sodium Chloride Solution

open access: yesAdvanced Engineering Materials, EarlyView.
Scandium (Sc)‐doped AlCoCrFeMo HEA coatings are fabricated via flame spraying with 0.1, 0.3, and 0.5 wt% Sc additions. Among these, the HEA‐Sc0.3 coating exhibits the highest corrosion resistance, indicated by a more positive corrosion potential and lower current density.
Pankaj Kumar   +7 more
wiley   +1 more source

Absorption spectra of gelatin copper complexes and copper (II) sulfate and their impact on cotton peroxide bleaching

open access: yesJournal of Natural Fibers, 2019
A gelatin copper complex was synthesized with gelatin and copper (II) sulphate. The previous study had indicated that the gelatin copper complex could improve peroxide bleaching effectiveness of cotton in low-temperature.
Xueyan Wang, Jun Gao
doaj   +1 more source

Induction of Laccase, Lignin Peroxidase and Manganese Peroxidase Activities in White-Rot Fungi Using Copper Complexes

open access: yesMolecules, 2016
Ligninolytic enzymes, such as laccase, lignin peroxidase and manganese peroxidase, are biotechnologically-important enzymes. The ability of five white-rot fungal strains Daedaleopsis confragosa, Fomes fomentarius, Trametes gibbosa, Trametes suaveolens ...
Martina Vrsanska   +6 more
doaj   +1 more source

Precipitation Simulations of the O‐Phase in Ti2AlNb Alloys Processed by Laser Powder Bed Fusion

open access: yesAdvanced Engineering Materials, EarlyView.
Simulated and experimental evolution of the O‐phase volume fraction during postprocessing of a Ti‐21Al‐25Nb (at.%) alloy processed by laser powder bed fusion. With results of sensitivity to input parameters from a thorough and quantified analysis, the interfacial energy matrix/precipitate is the most relevant input parameter for the simulation of the O‐
Silvana Tumminello   +7 more
wiley   +1 more source

Feasibility of Nitrogen as a Carrier Gas for Inconel Cold Spray in Hydropower Application

open access: yesAdvanced Engineering Materials, EarlyView.
N2, despite being nearly two orders of magnitude cheaper than He, is a feasible carrier gas for cold spray Inconel coatings in hydropower repair applications when higher gas temperature and pressure are used. Reducing powder size significantly improved cavitation resistance, while the addition of fine chromium carbide particles further enhanced erosion
Tianhao Wang   +4 more
wiley   +1 more source

Machine Learning‐Supported Analysis for Predicting and Visualizing Nonlinear Relationships Between Material Properties in Electroplated Chromium Layers

open access: yesAdvanced Engineering Materials, EarlyView.
This study applies machine learning regression to predict chromium layer thickness in decorative trivalent chromium electroplating, using 441 experiments from laboratory‐scale (1L) and pilot‐scale (14L) setups. Tree‐based models, particularly CatBoost, outperformed linear regression by capturing nonlinear parameter interactions (R2$R^2$ up to 0.77 ...
Christoph Baumer   +4 more
wiley   +1 more source

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