Results 61 to 70 of about 269,980 (281)

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

Advanced 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, Tomáš Babinský, Jan Lars Riedel, Wen Hao Kan, Aijun Huang, Martin Heilmaier, Ivo Šulák   +6 more
wiley   +1 more source

OPTIMIZING THE E-BEAM PROFILE OF A SINGLE CARBON NANOTUBE FIELD EMISSION DEVICE FOR ELECTRIC PROPULSION SYSTEMS. doi: 10.5028/jatm.2010.02010915

Journal of Aerospace Technology and Management, 2011
Preliminary studies on field emission (FE) arrays comprised of carbon nanotubes (CNT) as an electron source for electric propulsion system show remarkably promising results. Design parameters for a carbon nanotube (CNT) field-emission device operating
Juliano Fujioka Mologni, Marco Antonio Robert Alves, Filipe Braumgratz, Edson Fonseca, Cesareo L. R. Siqueira, Edmundo Silva Braga   +5 more
doaj  

Four‐Point Bending Tests at High Temperatures on Commercial MgO‐C Refractory Bricks with and Without Recyclate Considering Different Carbon Contents

Advanced Engineering Materials, EarlyView.
Four‐point bending tests are conducted in an argon atmosphere on commercial MgO‐C brick grades with and without MgO‐C recyclate from room temperature up to 1300 °C. No detrimental effect of the MgO‐C recyclates on bending strength is found. Instead, a decisive influence of the total carbon content is observed, with lower total carbon contents ...
Alexander Schramm, Lukas Knöchel, Thomas Schemmel, Christos G. Aneziris, Anja Weidner, Horst Biermann   +5 more
wiley   +1 more source

Design, Construction, Operation and Performance of a Hadron Blind Detector for the PHENIX Experiment

, 2011
A Hadron Blind Detector (HBD) has been developed, constructed and successfully operated within the PHENIX detector at RHIC. The HBD is a Cherenkov detector operated with pure CF4.
A. Cherlin, A. Dubey, A. Kozlov, A. Milov, Abjean, Adare, Adare, Adcox, Adcox, Akiba, Almeida, Azmoun, B. Azmoun, B. Lewis, Baur, Breskin, C. Woody, C.Y. Chi, Cusanno, Cusanno, D. Sharma, Denisov, Fraenkel, I. Ravinovich, I. Tserruya, J. Kamin, J. Sun, J.M. Durham, Kozlov, M. Connors, M. Makek, M. Naglis, M. Proissl, Nappi, R. Pisani, S. Rolnick, S. Stoll, Sauli, Seguinot, T. Hemmick, T. Sakaguchi, Tserruya, V. Pantuev, W. Anderson, Yoshino, Z. Citron, Z. Fraenkel, Zaidel   +47 more
core   +1 more source

Pyramidal Structures on Yttria‐Stabilized Zirconia after High Temperature Exposure at 1500°C: New Features on an Old Material

Advanced Engineering Materials, EarlyView.
New features on yttria‐stabilized zirconia after exposure at 1500°C: Newly discovered pyramidal structures on an old material. After exposure at 1550°C on the cross section of YSZ new features, namely pyramidal structures are discovered. These structures grow with time, increase in numbers, appear as singularities, are often arranged in strings, and ...
Doris Sebold, Dylan Jennings, Robert Vaßen   +2 more
wiley   +1 more source

Photoelectrical and Gas-sensing Properties of Nanostructured ZnO/CuO Samples [PDF]

Журнал нано- та електронної фізики, 2016
An experimental p-n junction device was fabricated by synthesizing ZnO/CuO nanostructures via a hydrothermal process. The structural and optical properties of the ZnO/CuO nanocomposite were studied by X-ray diffraction (XRD), scanning electron microscope
A. Ogurcovs, Vj. Gerbreders, E. Tamanis, E. Sledevskis, A. Gerbreders   +4 more
doaj   +1 more source

Surface Tension Measurement of Ti‐6Al‐4V by Falling Droplet Method in Oxygen‐Free Atmosphere

Advanced Engineering Materials, EarlyView.
In this article, the temperature‐dependent surface tension of free falling, oscillating Ti‐6Al‐4V droplets is investigated in both argon and monosilane doped, oxygen‐free atmosphere. Droplet temperature and oscillation are captured with one single high‐speed camera, and the surface tension is calculated with Rayleigh's formula.
Johannes May, Finn‐Lennard Janthur, Lena Kreie, Michael Müller, Sarah Seffer, Nick Schwarz, Jörg Hermsdorf, Thomas Hassel, Stefan Kaierle, Ludger Overmeyer   +9 more
wiley   +1 more source

Pulse voltage induced phase change characteristics of the ZnxSbyTez phase-change prototype device

AIP Advances, 2016
ZnxSbyTez thin films are deposited on quartz or glass substrates by the electron beam evaporation technique in an ultra-high vacuum. A prototype phase change memory device using the ZST (ZnxSbyTez) thin film is fabricated.
Rui Li, Ling Xu, Henan Fang, Ronghua Lu, Tao Wu, Fei Yang, Zhongyuan Ma, Jun Xu   +7 more
doaj   +1 more source

Temperature measurement and examination of E to H transition in vacuum ICP plasma [PDF]

مجله علوم و فنون هسته‌ای
In this paper, we first briefly describe the constructed Inductively Coupled Plasma Source device, ICP-13.56, which includes two vacuum and atmospheric pressure torches. Afterward, focusing on the vacuum-torch operation, we discuss the plasma temperature
S.M. Tabatabaie, J. Yazdanpanah, A.R. Hefzolsehhe   +2 more
doaj   +1 more source

Affecting the Properties of Copper–Graphene Electroconductive Composite by Severe Plastic Deformation

Advanced Engineering Materials, EarlyView.
Copper‐based composites enhanced with carbon feature convenient mechanical properties and favorable electric conductivity. Processing via deformation and thermomechanical treatments can introduce advantageous microstructures further enhancing their performance. Herein, copper–graphene powder‐based composites are directly consolidated via rotary swaging
Radim Kocich, Lenka Kunčická, Pavel Czernek, Zifan Wang   +3 more
wiley   +1 more source