Results 11 to 20 of about 318,126 (177)

Tuning the reactivity of Al–Ni by fine coating of halogen-containing energetic composites

open access: yesDefence Technology, 2022
In this paper, various core-shell structured Al–Ni@ECs composites have been prepared by a spray-drying technique. The involved ECs refer to the energetic composites (ECs) of ammonium perchlorate/nitrocellulose (AP/NC, NA) and polyvinylidene fluoride ...
Su-lan Yang   +4 more
doaj   +1 more source

Investigation on Interface of CuW/Al Composite Using Ni Interlayer by Vacuum Hot-Pressing Diffusion Bonding

open access: yesMetals, 2023
In this study, the bonding of a CuW/Al composite with a Ni interlayer was designed and established by vacuum hot-pressing diffusion bonding. The interfacial microstructure was systematically discussed based on experimental characterization and first ...
Chan Wang   +3 more
doaj   +1 more source

Experimental Investigation in the Quaternary Systems Ti–Ni–Al–N and Ti–Ni–Al–O [PDF]

open access: yesJournal of Solid State Chemistry, 2000
The experimental evaluation of phase equilibria in the Ti-Ni-Al-N and Ti-Ni-Al-O phase diagrams are based on alloy samples, which were prepared of elemental powder blends by argon-levitation melting in a Hukin crucible. The experimental investigation employed X-ray powder diffraction, metallography, SEM, and EMPA techniques in the as-cast state as well
Huneau, Bertrand   +5 more
openaire   +2 more sources

Study on microstructure and mechanical properties of W-Ni3Al alloys prepared by ball milling and two-step sintering

open access: yesMaterials Research Express, 2021
In this paper, W-Ni _3 Al alloys with the different Ni _3 Al contents were prepared via ball milling and two-step sintering processes. The relationship of Ni _3 Al contents, microstructural evolution, and mechanical properties of W-Ni _3 Al alloys were ...
Bobo Liu   +4 more
doaj   +1 more source

Study on the Combustion Characteristics of Ethanol Nanofuel

open access: yesAerospace, 2023
This study investigates the thermophysical and combustion characteristics of ethanol-based nanofuels incorporating aluminum (Al) and nickel-coated aluminum (Ni-Al). The nanofuels are prepared with varying concentrations of Al and Ni-Al nanoparticles. The
Kwanyoung Noh   +3 more
doaj   +1 more source

Effect of Ni Addition on the Interfacial Strength of Al/Cu Dissimilar Welds Produced by Friction Stir Lap Welding

open access: yesMetals, 2022
Al/Cu dissimilar joining is a key technology for reducing the weight and cost of electrical components. In this study, the dissimilar friction stir lap welding (FSLW) of a Ni-containing Al alloy to pure Cu was performed, and the effects of the addition ...
Kota Kurabayashi   +2 more
doaj   +1 more source

Microstructural characterization, oxidation behavior, and properties of a new Al–Cu–Ni–Mn–Si non-BCC high entropy alloy at 600, 700, and 800 °C

open access: yesJournal of Materials Research and Technology, 2023
Non-BCC high entropy alloys have been created and characterized in their as-cast and oxidized condition. The effect of Si on the microstructures in Al–Cu–Ni–Mn alloy has also been explored. The microstructure remained unaltered by the addition of Si.
Mckenna Mae Lin Hitter, S.K. Varma
doaj   +1 more source

Microstructure and mechanical performance of AZ31/2024 dissimilar alloy joints using a multi-interlayer of Ni/Al/Zn via ultrasonic-assisted transient liquid phase bonding

open access: yesMaterials & Design, 2021
Here, the novel combination of multi-interlayers composed of Ni, Al, and Zn foil was used to join AZ31/2024 dissimilar alloys via ultrasonic-assisted transient liquid phase bonding (U-TLP) in air condition.
Zilong Peng   +5 more
doaj   +1 more source

Microstructural Control of the Interface Layer for Strength Enhancement of Dissimilar Al/Cu Joints via Ni Addition during TIG Arc Brazing

open access: yesMetals, 2021
Dissimilar metal joining between Al and Cu is effective for reducing the weight and cost of electrical components. In this study, dissimilar lap joining of pure Al to pure Cu with an Al-Ni filler material was conducted using tungsten inert gas (TIG) arc ...
Hiroki S. Furuya   +3 more
doaj   +1 more source

Phase stability of Ni–Al nanoparticles

open access: yesJournal of Materials Research, 1999
The phase stability of Ni–Al clusters of nanometer size was studied by using the embedded atom model and Monte Carlo simulation techniques. For temperatures of 500 and 1000 K and for a range of compositions below 70 at.% Al, the equilibrium structures of the system were determined and compared with the bulk results. We found that the bulk NiAl (B2) and
Ramos, Susana   +2 more
openaire   +4 more sources

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