Results 61 to 70 of about 390,595 (315)
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
Titanium nitride (TiN) is a typical inorganic compound capable of achieving resistance modulation by adjusting the element ratio. In this work, to deeply investigate the resistance-tunable characteristics and electron emission properties of TiN, we ...
Yang Xia, Dan Wang
doaj +1 more source
Organic long‐persistent luminescence (OLPL) based on long‐lived charge‐separated (CS) states shows considerable emission persistence time owing to the ability to store absorbed photon energy.
Zhen Chen +6 more
doaj +1 more source
Near‐Field Electrospinning Micro‐Printhead Achieves Precise Control of Nanofiber Deposition
A micro‐printhead for near‐field electrospinning enables reproducible deposition of polymer nanofibers with diameters below 50 nm. Systematic parameter studies uncover the mechanisms linking operating conditions to fiber morphology, paving the way for precise and low‐cost nanoscale 3D manufacturing.As a high‐resolution, cost‐effective, and rapid ...
Han Xu, Dario Mager, Jan G. Korvink
wiley +1 more source
Thermal Stability Calculation of Typical Phases in Tungsten Cathodes
Thermodynamic calculations were carried out on typical tungsten cathode materials using Factsage software within a temperature range of 1000–3400 °C.
Jiaxuan Wang +3 more
doaj +1 more source
Low‐Angle Grain Boundaries and Re‐Segregation in Single‐Crystalline Ni‐Base Superalloys
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
The Role of Elastic and Inelastic Electron Reflection in Multipactor Discharges. [PDF]
In this brief, it is demonstrated that the inclusion of primary electron elastic and inelastic reflection from the surfaces of vacuum RF electronic systems can result in a multipactor discharge where under current techniques multipactor is predicted not ...
Seviour, Rebecca
core
Electron emission from individual graphene nanoribbons driven by internal electric field
Electron emission from individual graphene nanoribbons (GNRs) driven by an internal electric field was studied for the first time inside a high resolution transmission electron microscope equipped with a state-of-art scanning tunneling microscope sample ...
Wei, X. +5 more
core +1 more source
Directional features of the downshifted peak observed in HF-induced stimulated electromagnetic emission spectra obtained using an interferometer [PDF]
International audienceA high frequency (HF) ionospheric modification experiment was carried out between 25 September and 8 October 2004, using the EISCAT HF transmitter located near Tromsø, Norway.
Khudukon, B. Z. +27 more
core +1 more source
Boron nitride (BN) ceramic is an important support material in aerospace, arc discharge devices, and vacuum electronics. The electron emission properties of BN surfaces are of significance among various space applications.
Yuqing Gu, Juannan Li, Dan Wang
doaj +1 more source

