Results 81 to 90 of about 390,595 (315)

Solid‐State Diffusion and Intermetallic Phase Formation in Roll‐Bonded Mg–Zn Composites With Kirigami‐Patterned Inlay

open access: yesAdvanced Engineering Materials, EarlyView.
Mg–Zn composites with a thickness of 0.21 mm were fabricated using roll bonding of a kirigami‐patterned Mg alloy inlay within a Zn matrix. Thermal activation following this process led to the formation of tailored intermetallic structures, which provided the composite with enhanced flexural strength.
Yaroslav Frolov   +4 more
wiley   +1 more source

Potential Electron Emission from Metal and Insulator Surfaces

open access: yes, 2007
Impact of slow ions (impact velocity < 1 a.u. = 25 keV/amu) on solid surfaces is of genuine interest in plasma- and surface physics, and related applications. Nature and intensity of the resulting inelastic processes depend both on the kinetic and the
Aumayr, Friedrich, Winter, Hannspeter
core  

Electron-impact excitation of neutral boron using the R-matrix with pseudostates method [PDF]

open access: yes, 1989
We have carried out a large R-matrix with pseudostates (RMPS) calculation of the electron-impact excitation of neutral boron. The RMPS method has been employed for the excitation/ionisation of many light fusion related species, but primarily for one or ...
Gorkhover, Tais   +999 more
core   +1 more source

The Quest for Low Work Function Materials: Advances, Challenges, and Opportunities

open access: yesCrystals
Low work function (LWF) materials are essential for enabling efficient systems’ behavior in applications ranging from vacuum electronics to energy conversion devices and next-generation opto-electronic interfaces.
Alessandro Bellucci
doaj   +1 more source

Modeling and numerical simulation of argon and hydrogen plasma sheaths with secondary electron emission [PDF]

open access: yesEPJ Web of Conferences
The characteristics of plasma sheaths in different background gases are of great importance for understanding plasma-surface interactions. In this work, a comparative investigation is performed on argon and hydrogen thermal electropositive plasmas ...
Asserghine Aziza, Maaroufi Fatiha
doaj   +1 more source

Rafting of Ni‐Based Superalloys Under Multiaxial Load as Understood by Phase‐Field Simulations and Critical Experiments

open access: yesAdvanced Engineering Materials, EarlyView.
Phase‐field simulations coupled with dislocation‐density‐based crystal plasticity modeling reproduce γ′ rafting behavior in single‐crystal Ni‐based superalloys under varied loading conditions. The model captures both macroscopic creep and microscopic morphology evolution, with results matching high‐temperature creep experiments.
Micheal Younan   +5 more
wiley   +1 more source

Karl Popper and the Mechanisms of Hydrogen Embrittlement

open access: yesAdvanced Engineering Materials, EarlyView.
Representation of the beginning of loss of ductility rather than embrittlement. Small concentrations of hydrogen in a diffusible form within iron are well‐established to harm the mechanical integrity of steels. There are theories that attempt to explain the pernicious role of hydrogen.
H. K. D. H. Bhadeshia
wiley   +1 more source

Heat Flow of a Two-Electron-Temperature Plasma through the Sheath in the Presence of Electron Emission

open access: yes, 1992
"The electrostatic sheath and the heat flow of a two-electron-temperature plasma in the presence of electron emission is investigated analytically. It is shown that the energy flux is remarkably enhanced up to a value near the electron free-flow energy ...
Miyawaki, F.", "Sato, K.
core  

Multimodal Data‐Driven Microstructure Characterization

open access: yesAdvanced Engineering Materials, EarlyView.
A self‐consistent autonomous workflow for EBSP‐based microstructure segmentation by integrating PCA, GMM clustering, and cNMF with information‐theoretic parameter selection, requiring no user input. An optimal ROI size related to characteristic grain size is identified.
Qi Zhang   +4 more
wiley   +1 more source

Cathodoluminescence and phase-change functionality of metallic nanoparticles

open access: yes, 2009
Nanoscale resolution cathodoluminescence (CL) has been used to demonstrate and investigate the functionality of nanoparticle-based components for future nanophotonic phase-change memory and optical antenna applications.
Denisyuk, A.I.   +1 more
core  

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