Results 61 to 70 of about 672,487 (304)

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

open access: yesAdvanced 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   +2 more
wiley   +1 more source

Spectroscopic Bolometric Corrections and Empirical Zero-point Constants of Gaia Magnitudes, 𝐺, 𝐺bp, and 𝐺rp, from Gaia XP Spectra

open access: yesPhysics and Astronomy Reports
The International Astronomical Union 2015 Resolution B2 (IAU2015GARB2) has resolved the long-standing problem of zeropoint constants for the absolute and apparent bolometric magnitude scales and opened a new window in fundamental astrophysics.
Zeki Eker, Gökhan Yücel
doaj   +1 more source

Thermodynamic Pathways of Nonequilibrium Solidification in Wire‐Arc Additive Manufacturing Fe‐Based Multicomponent Alloy Structures

open access: yesAdvanced Engineering Materials, EarlyView.
Geometry‐driven thermal behavior in wire‐arc additive manufacturing (WAAM) influences microstructural evolution during nonequilibrium solidification of a chemically complex Fe–Cr–Nb–W–Mo–C nanocomposite system. By comparing different deposits configurations, distinct entropy–cooling rate correlations, segregation, and carbide evolution are revealed ...
Blanca Palacios   +5 more
wiley   +1 more source

Binding of cadmium to soil humic acid as a function of carboxyl group content

open access: yesMacedonian Journal of Chemistry and Chemical Engineering, 2010
The binding of Cd(II) to soil humic acid (HA) at pH 6.5 and in 0.1 mol/L KNO3 ionic medium, was studied by potentiometric titration with a cadmium ion selective electrode.
Tatjana Anđelković   +4 more
doaj   +1 more source

Accurate Determination of Optical Constants of Amorphous Absorbing Thin Films by Spectroscopic Ellipsometry

open access: yes, 2015
Spectroscopic ellipsometry (SE) and spectrophotometer are used to measure the ellipsometric parameters (psi and △) and transmittance of ultrathin diamond like carbon (DLC) film and amorphous silicon (a-Si) film respectively.
Wei Xianhua   +5 more
core  

Spectroscopic determination of acid dissociation constants of some pyridyl-substituted 2-aminothiazole derivatives

open access: yes, 2006
WOS: 000237525300021The acid dissociation constants, K-a, of nine biologically active 2-amino-4-(x-pyridyl)- thiazole, 2-methylimino-3-methyl- 4-(x-pyridyl)- 2,3-dihydrothiazole, and 2-methylamino-4-(x-pyridyl)- 2,3-dihydrothiazole were determined using ...
Demirayak, Şeref   +7 more
core   +1 more source

The Possible Interstellar Anion CH2CN-: Spectroscopic Constants, Vibrational Frequencies, and Other Considerations [PDF]

open access: yes, 2012
The A 1B1
Lee, Timothy J.   +7 more
core   +1 more source

Thermomechanical Fatigue and Creep–Fatigue Interaction of Inconel 718 Additively Manufactured by Laser Beam Powder Bed Fusion

open access: yesAdvanced Engineering Materials, EarlyView.
Thermomechanical fatigue tests of laser beam powder bed fusion (PBF‐LB) Inconel 718 show that the additively manufactured material reaches almost the lifetimes of conventionally‐rolled material under no‐dwell conditions. Introducing dwell times at the maximum temperature markedly reduces the lifetimes due to pronounced grain boundary sliding associated
Stefan Guth   +6 more
wiley   +1 more source

Modelling of Optical and Surface Properties of Aluminum Thin Films Using Spectroscopic Ellipsometry

open access: yesEast European Journal of Physics
In this study, aluminum (Al) thin films deposited on soda lime glass substrates were investigated using spectroscopic ellipsometry with a focus on optical modeling and surface characteristics.
Kh.N. Ahmadova   +4 more
doaj   +1 more source

Accurate determination of thickness values and optical constants of absorbing thin films on opaque substrates with spectroscopic ellipsometry

open access: yes, 2015
The determination of the optical constants of absorbing films, particularly on opaque substrates, is a difficult problem when solely using spectroscopic ellipsometry.
Pei Wang   +4 more
core  

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