Results 41 to 50 of about 641 (176)
This study investigates laser‐based oxide removal of Cu inserts in oxygen‐free conditions and examines long‐term oxidation kinetics and surface chemistry under different atmospheres via X‐ray photoelectron spectroscopy. Al–Cu compound casting with differently oxidized surfaces is performed, and intermetallic phase formation, morphology, and thermal ...
Timon Steinhoff +9 more
wiley +1 more source
This work explores the reduction of nickel oxide layers using dielectric barrier discharge plasma in an argon–hydrogen atmosphere. The results reveal a strong temperature dependence, enabling complete reduction of thick oxide layers at 200°C within seconds.
Maria Argirusi +5 more
wiley +1 more source
Tungsten inert gas welding and vacuum brazing butt joints of Al–Mg–Si alloy 6061 in the artificially aged condition T6 were studied. Constant amplitude and variable amplitude fatigue loading tests were performed. The experimental S-N curves were compared
Huei Lin, Jiun-Ren Hwang, Chin-Ping Fung
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Analysis of thermal radiation shielding of vacuum furnace for brazing and bake-out of accelerator [PDF]
An accelerator is a device that accelerates charged particles from low to high energy. It consists of several main components, which require specialized manufacturing processes, including brazing and bake-out carried out in a vacuum furnace at a pressure
Suprapto +5 more
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Surface Tension Measurement of Ti‐6Al‐4V by Falling Droplet Method in Oxygen‐Free Atmosphere
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 +9 more
wiley +1 more source
Ultrahigh Stiffness and Energy Absorption Properties of Isotropic Metallic Closed Cell Microlattices
True closed cell microlattices without holes are fabricated for the first time using a novel Laser Sheet Fusion additive manufacturing technique. These microlattices exhibited isotropy in stiffness and surprisingly, strength and plasticity as well, despite orientation‐dependent failure mechanisms. Furthermore, material work hardening is shown to be key
Dominic Kang Jueh Lim, Chang Quan Lai
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Deuterium permeation and retention behavior in copper-based brazing filler materials
Copper-based brazing filler materials are commonly employed in vacuum brazing techniques to achieve joining of plasma-facing components for ITER. In this work, gas-driven permeation (GDP) and thermal desorption spectroscopy (TDS) experiments have been ...
Zi-Han Tao +8 more
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This study investigated a suitable filler metal, diffusion depth of the elements of this filler metal in the base metal, and its effect on the mechanical properties of brazing bonding of sheets with different thicknesses of 304L stainless steel. For this
Hedayat Mohammad Soltani, Morteza Tayebi
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ABSTRACT The development of high‐performance thermal insulation and lightweight materials in aerospace applications requires overcoming the limitations of conventional aerogels. While polyimide (PI) aerogel offers flexibility and thermal stability, it suffers from shrinkage and a hydrophilic nature.
Shashi Kumar, Kaushik Pal
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ABSTRACT The thermal expansion mismatch between sapphire and Ti‐6Al‐4V (TC4) alloy has traditionally limited the shear strength of ceramic‐metal joints to ≤ 170 MPa. In this study, active brazing with Ag‐35.25Cu‐1.75Ti (wt%) leads to the formation of a dual‐function microstructure, wherein uniformly dispersed submicron Ti3(Cu,Al)3O particles embedded ...
Hairui Liu +13 more
wiley +1 more source

