Results 21 to 30 of about 40,749 (269)

ANALISIS MODULUS ELASTISITAS DAN ANGKA POISSON BAHAN DENGAN UJI TARIK

open access: yesBarekeng, 2011
Observation of the stress and strain in materials steel, brass and anneal is done by testing to determine the tensile modulus of elasticity of the material. The results showed that the modulus of elasticity of the material brass is smaller than the brass
MATHEUS SOUISA
doaj   +1 more source

Corrosion Inhibition Effect of Pyridine-2-Thiol for Brass in An Acidic Environment

open access: yesMolecules, 2022
In this study, the inhibitive performance of pyridine-2-thiol added to a corrosive solution was investigated for brass using potentiodynamic polarization, electrochemical impedance spectroscopy, and X-ray photoelectron spectroscopy.
Darshan Jayasinghe Karunarathne   +4 more
doaj   +1 more source

Modern brass band: its components and activities

open access: yesНауковий Вісник Південноукраїнського Національного Педагогічного Університету імені К. Д. Ушинського, 2022
The article covers the modern composition of a brass band, the main musical instruments that make up performing groups; the features of sound, range, tessitura of traditional musical instruments.
Stepanova Anna
doaj   +1 more source

Parameters Selection for Electropolishing Process of Products Made of Copper and Its Alloys

open access: yesArchives of Metallurgy and Materials, 2017
Electropolishing is electrochemical method used in metal working that has a vital role in production of medical apparatus, in food or electric industry. The purpose of this paper is to determine optimal current parameters and time required for conducting
Maciąg T., Wieczorek J., Węcki B.
doaj   +1 more source

Investigation of Laser Ablation and Brush Pre‐Treatments for AlCu Cold Roll Bonding in Oxygen‐Free Conditions

open access: yesAdvanced Engineering Materials, EarlyView.
It is shown that laser ablation pretreatment under oxygen‐free conditions enables copper–aluminium bonding at significantly lower deformation degrees and improved properties compared to mechanical brushing. Laser ablation further increases interface contact area and induces favourable residual stress states and microstructural compatibility ...
Khemais Barienti   +11 more
wiley   +1 more source

Structural and Corrosion Study of Uncoated and Zn-Cu Coated Magnesium-Based Alloy

open access: yesMetals, 2016
Zn-Cu alloy was deposited onto AZ63 substrate, and the corrosion behaviour of resulting modified electrodes was investigated in 3 wt % NaCl solution in comparison with uncoated AZ63.
Mehmet Yakup Hacıibrahimoğlu   +2 more
doaj   +1 more source

Effect of cold rolling and annealing temperature to the characteristics of α + β' phases in Cu-29.5Zn-2.5Al alloy produced by gravity casting [PDF]

open access: yesJournal of Mining and Metallurgy. Section B: Metallurgy, 2020
Al-brass alloys (Cu29.5Zn2.5Al wt. %) were produced by gravity casting and homogenized at 800°C for 2 h, resulting in a binary phase morphology identified as cubic α and martensitic βʹ phases through X-ray diffraction (XRD).
Angela I., Basori I., Sofyan B.T.
doaj   +1 more source

Al–Cu Composite Casting of Laser‐Deoxidized Copper: Bonding, Interfacial Chemistry, and Thermal Conductivity

open access: yesAdvanced Engineering Materials, EarlyView.
This study investigates laser‐based oxide removal of Cu inserts in oxygen‐free conditions and examines long‐term oxidation kinetics and surface chemistry under different atmospheres via X‐ray photoelectron spectroscopy. Al–Cu compound casting with differently oxidized surfaces is performed, and intermetallic phase formation, morphology, and thermal ...
Timon Steinhoff   +9 more
wiley   +1 more source

NanoMOF‐Based Multilevel Anti‐Counterfeiting by a Combination of Visible and Invisible Photoluminescence and Conductivity

open access: yesAdvanced Functional Materials, EarlyView.
This study presents novel anti‐counterfeiting tags with multilevel security features that utilize additional disguise features. They combine luminescent nanosized Ln‐MOFs with conductive polymers to multifunctional mixed‐matrix membranes and powder composites. The materials exhibit visible/NIR emission and matrix‐based conductivity even as black bodies.
Moritz Maxeiner   +9 more
wiley   +1 more source

Inhibitory Effects of Copper, Brass, and Stainless Steel Surfaces on Multidrug-Resistant Microorganisms

open access: yesAnnals of Clinical Microbiology, 2022
Background: The aim of this study was to analyze the inhibitory effects of copper, brass (78% copper, 22% tin), and stainless steel surfaces on multidrug-resistant Acinetobacter baumannii (MRAB), extended-spectrum beta-lactamase (ESBL) Escherichia coli ...
Jung-Beom Kim   +5 more
doaj   +1 more source

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