Results 51 to 60 of about 269,980 (281)

Interaction between Molten Al‐Killed Mn–B Steel and Carbon‐Bonded MgO Refractories Based on Recyclates

Advanced Engineering Materials, EarlyView.
High‐temperature interactions between low‐sulfur Al‐killed Mn–B steel and MgO–C refractories (0 and 50 wt% recyclates) are studied via finger immersion tests (1600 °C). Surface‐active elements influence infiltration. MgO/CaS layer forms, along with spinel and calcium silicate.
Matheus Roberto Bellé, Lukas Neubert, Anton Yehorov, Till M. J. Stadtmüller, Christos G. Aneziris, Olena Volkova   +5 more
wiley   +1 more source

Cell-type continuous electromagnetic radiation system generating millimeter waves for active denial system applications

Defence Technology, 2022
The cell-type continuous electromagnetic radiation system is a demonstration device capable of generating high-power millimeter electromagnetic waves of a specific wavelength and observing their effects on living organisms.
Sun-Hong Min, Ohjoon Kwon, Matlabjon Sattorov, Seontae Kim, In-Keun Baek, Seunghyuk Park, Ranjan Kumar Barik, Anirban Bera, Dongpyo Hong, Seonmyeong Kim, Bong Hwan Hong, Chawon Park, Sukhwal Ma, Minho Kim, Kyo Chul Lee, Yong Jin Lee, Han Byul Kwon, Young Joon Yoo, Sang Yoon Park, Gun-Sik Park   +19 more
doaj   +1 more source

Enhanced Gamma Radiation Shielding Using Epoxy Quartz Fabric Composites Reinforced With CoCl2 Microparticles

Advanced Engineering Materials, EarlyView.
The growing demand for lightweight, nontoxic, and multifunctional gamma shielding materials has intensified efforts to find alternatives to conventional lead and aluminum‐based protectants. In this work, we develop epoxy quartz fabric composites reinforced with cobalt chloride (CoCl2) microparticles, fabricated via hand lay‐up with varying filler ...
Summan Urooge, Ahsan Irshad, Umar Jamil, Srosh Fazil, Khuram Liaqat, Kashif Shahzad, Fakhar Alam, Mehboob Alam   +7 more
wiley   +1 more source

Neural Network-Based Genetic Algorithm for Complex Circuit Design of High-Power Vacuum Electron Device

IEEE Access
The circuits of high-power vacuum electron devices (HPVEDs) typically possess complex topologies that are crucial for efficiently converting electron beam energy to microwave energy.
Dongyang Wang, Yonggang Che, Hongfei Yu, Yan Teng   +3 more
doaj   +1 more source

Laser Metal Powder Deposition of Titanium Microalloyed HSLA Steel FeC0.12Si0.25Mn1.3

Advanced Engineering Materials, EarlyView.
This study investigates the additive manufacturing of titanium‐doped high‐strength low‐alloy (HSLA) steel via laser metal deposition. It reveals distinct process‐structure relationships for elemental powder blends compared to prealloyed feedstocks.
Olaf Stelling, Matthias Steinbacher, Nils Ellendt   +2 more
wiley   +1 more source

Research Progress in Carbon Nanotube-Based Cold Cathode Electron Guns

Nanomaterials
Field emission (FE) cold-cathodes have some important characteristics, including instant turn-on, room temperature operation, miniaturization, low power consumption, and nonlinearity.
Jiupeng Li, Yu Tu, Dewei Ma, Yun Yang
doaj   +1 more source

Beam heat load analysis with COLDDIAG: a cold vacuum chamber for diagnostics [PDF]

, 2015
The knowledge of the heat intake from the electron beam is essential to design the cryogenic layout of superconducting insertion devices. With the aim of measuring the beam heat load to a cold bore and understanding the responsible mechanisms, a cold ...
Bartolini, R., Casalbuoni, S., Cox, M. P., Gerstl, S., Grau, A. W., Holubek, T., Jauregui, D. Saez de, Longhi, E. C., MIGLIORATI, Mauro, Rehm, G., Schouten, J. C., SPATARO, BRUNO, Voutta, R., Walker, R. P.   +13 more
core  

Influence of an Argon/Silane Atmosphere on the Temperature of a Thermal Plasma

Advanced Engineering Materials, EarlyView.
The influence of a silane‐doped argon atmosphere on the chemical composition and temperature of a thermal nontransferring argon plasma is investigated using optical emission spectroscopy. As a result of the high amount of free electrons resulting from the stepwise ionization and dissociation of the silane molecule, even a silane addition of 0.01 vol ...
Lena Kreie, David Kramer, Thomas Scheithauer, Hans Jürgen Maier, Thomas Hassel   +4 more
wiley   +1 more source

Enhancement of impact toughness properties of Al 7075 alloy via double aging heat treatment

Gazi Üniversitesi Fen Bilimleri Dergisi, 2022
In this study, Charpy impact test specimens were prepared by cutting Al 7075 alloy according to ASTM-E23 standards. The prepared test specimens were dissolved in a single-phase region for 1 hour at 480°C in vacuum atmosphere and artificially aged at 120 ...
Onur ALTUNTAŞ
doaj   +1 more source

Electrical Conductivities of Conductors, Semiconductors, and Their Mixtures at Elevated Temperatures

Advanced Engineering Materials, EarlyView.
This article presents a comprehensive review of temperature‐dependent electrical conductivity data for multiple material classes at elevated temperatures, highlighting a persistent conductivity gap between metals and semiconductors in the range of 102$\left(10\right)^{2}$– 107$\left(10\right)^{7}$ S/m. Metal–ceramic irregular metamaterials are proposed
Valentina Torres Nieto, Marcia A. Cooper
wiley   +1 more source