Results 11 to 20 of about 11,137 (263)

Influence of the changes of free electron density on electrical and magnetic properties of the CO70Fe5Si10B15 amorphous alloy [PDF]

open access: yesScience of Sintering, 2004
In this study we present the results on structural relaxation of the Co70Fe5Si10B15 amorphous alloy investigated by measuring the thermo-electromotive force (TEMF) during isothermal annealing (for 600 s).
Maričić Aleksa M.   +2 more
doaj   +1 more source

Effect of isothermal annealing temperature on microstructure and mechanical properties of Cu45Zr45Ag7Al3 amorphous alloy

open access: yesMaterials Research Express, 2023
Bulk amorphous alloys, as a material with broad application prospects, are highly expected in many cutting-edge applications. However, its plastic deformation relies on highly localized shear bands, resulting in brittle fracture characteristics of ...
Like Zhang   +5 more
doaj   +1 more source

Study of low-temperature isothermal annealing in the PM Cu-Pt alloys after plastic deformation [PDF]

open access: yesTehnika, 2020
The investigation was performed on pure sintered (PM) copper and dilute PM copper-based alloys with 3 and 5.9 wt.% of platinum. Investigated PM samples were obtained using the standard powder metallurgy technique by mixing the elemental powders in proper
Marković Ivana I.   +6 more
doaj  

Thermal stability of thin rolled potassium-doped tungsten sheets during annealing at temperatures up to 1400 °C

open access: yesNuclear Materials and Energy, 2022
Microstructural changes will occur in tungsten when used as plasma-facing material in future fusion reactors due to the high operation temperatures. Potassium doping has proven to delay such undesired changes in drawn tungsten wires. The same strategy is
D. Tarras Madsen   +3 more
doaj   +1 more source

Tuning the microstructure and mechanical properties of TiAl-based alloy through grain boundary engineering

open access: yesJournal of Materials Research and Technology, 2022
In order to modify the room-temperature plasticity of TiAl-based alloy, grain boundary character distribution (GBCD) in TiAl-based alloy was tuned through multidirectional isothermal forging (MDIF) combined with annealing. The experimental results showed
Yaodong Xuanyuan   +4 more
doaj   +1 more source

Isothermal annealing of hillocks in AlCu films

open access: yesThin Solid Films, 1989
Abstract Vapor deposited Al-15 wt.% Cu films were formed on oxidized silicon substrates at room temperature. Subsequent heating of these samples resulted in the formation of copper-rich hillocks on the surface of the films because of compressive, substrate-induced differential thermal expansion strains.
C.Y Chang, R.W Vook, Y.C Lee, I Hoshi
openaire   +1 more source

Tunable magnetization steps in mixed valent ferromagnet Eu2CoMnO6

open access: yesScientific Reports, 2021
Magnetic properties can be manipulated to enhance certain functionalities by tuning different material processing parameters. Here, we present the controllable magnetization steps of hysteresis loops in double-perovskite single crystals of Eu2CoMnO6 ...
Nara Lee   +7 more
doaj   +1 more source

Low‐Angle Grain Boundaries and Re‐Segregation in Single‐Crystalline Ni‐Base Superalloys

open access: yesAdvanced Engineering Materials, EarlyView.
This work demonstrates that Re‐segregation at low‐angle grain boundaries (LAGBs) in Ni‐base superalloys is influenced by misorientation angle. Advanced microscopy and atom probe tomography reveal that higher misorientation angles increases Re‐segregation.
Alireza B. Parsa   +9 more
wiley   +1 more source

Time‐Dependent Oxidation and Scale Evolution of a Wrought Co/Ni‐Based Superalloy

open access: yesAdvanced Engineering Materials, EarlyView.
This study shows how a new wrought Co/Ni‐based superalloy resists oxidation at 800 ∘$^\circ$C. The oxide scale changes from rough, fast‐growing spinel to a dense, protective chromia–alumina layer. Atom probe analysis reveals tiny refractory‐rich bubbles at the interface that mark the transition to long‐term, diffusion‐controlled protection ...
Cameron Crabb   +6 more
wiley   +1 more source

Rapid and long-term gamma-radiation annealing in low-dropout voltage regulators [PDF]

open access: yesNuclear Technology and Radiation Protection, 2017
Samples of four types of low-dropout voltage regulators, with both serial pnp and npn transistors, were examined in room-temperature isothermal gamma radiation annealing.
Vukić Vladimir Đ.
doaj   +1 more source

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