Investigation of Nickel Aluminide Formed Due to Shock Loading of Aluminum–Nickel Mixtures in Flat Recovery Ampoules

Zhukov, A. N.; Yakushev, V. A.; Ananev, Sergey; Dobrygin, V. V.; Dolgoborodov, A. Yu.

doi:10.1134/s0010508218010100

Cited by 9 publications

(7 citation statements)

References 29 publications

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“…Zhukov et al [24] and Horie et al [25] investigated the interaction of Al and Ni under the conditions of shock wave load. In the experiments reported in [24] it was shown that the structure and composition of the material being formed (AlNi) is not very different from the analogous product produced by the traditional method (the high-temperature synthesis itself).…”

Section: Discussion Of Results Of Studying the Interaction Between Thmentioning

confidence: 99%

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New Functional Materials in Mechanical Engineering and Geology

Wojewódka¹,

Voitenko²,

Zakusylo³

et al. 2019

Cent. Eur. J. Energ. Mater.

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Section: Discussion Of Results Of Studying the Interaction Between Thmentioning

confidence: 99%

“…against shaped charges jets or projectile impact. In certain schemes of shock wave loading of initial powder mixtures, new structural materials can be obtained in preservation capsules, for example, nickel aluminide [24,28].…”

Section: Discussion Of Results Of Studying the Interaction Between Thmentioning

confidence: 99%

New Functional Materials in Mechanical Engineering and Geology

Wojewódka¹,

Voitenko²,

Zakusylo³

et al. 2019

Cent. Eur. J. Energ. Mater.

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“…Such deposition of carbonaceous compounds could inhibit the catalyst activity, leading to a decrease in gasi cation performance. Nguyen et al (2014) and Guo et al (2015) reported the (Zhukov et al, 2018). e peaks at 26.4° and 26.6° were identi ed as MoO 3 (201) and MoO 3 (301), an indication of Mo promoter (Lavery et al, 2013).…”

Section: Examination Of Catalyst Activitymentioning

confidence: 99%

Supercritical Water Gasification as Treatment for High Lipid Content Biomass in the Presence of Nickel Catalyst

Gubatanga

Sawai

Nunoura

2021

J. Chem. Eng. Japan / JCEJ

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In this work, a new approach towards converting high lipid content biomass into renewable hydrogen is investigated. Using canola oil as the representative biomass, hydrogen was obtained by employing supercritical water as a reaction medium in a continuous gasi cation system over nickel catalyst. The experiments were conducted at xed temperature (400°C), pressure (25 MPa), reaction time (residence time 45 s, or weight hourly space velocity 25.5 h 1 for catalytic reaction) and varying feed concentrations (2-5 wt%). The results of the study revealed that increasing the feed concentration had a negative e ect on hydrogen yield due to less water molecules present in the reactant. Another interesting observation is the appearance of a solid-like emulsion, composed of products from polymerization reaction. The appearance of this emulsion is strongly correlated to the decline of catalyst activity. Further characterization of the nickel catalyst used after the reaction found a signi cant decrease of its surface area. Moreover, deposition of carbonaceous compounds on its surface was detected, which could have inhibited the catalytic activity.

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“…Gas-phase synthesis includes physical/chemical deposition [ 12 ] and magnetron sputtering technique [ 13 ]. Solid-phase synthesis includes self-propagating high-temperature synthesis (SHS) [ 14 ], thermal explosion [ 15 ], hot gas extrusion [ 16 ], spark plasma sintering [ 17 ], rolling [ 18 , 19 ], hot isostatic pressing [ 20 ], mechanical alloying [ 21 ] and shock-wave loading (SWL) [ 22 , 23 , 24 , 25 , 26 , 27 , 28 , 29 ].…”

Section: Introductionmentioning

confidence: 99%

“…Among all of the solid-phase methods, SWL causes the highest level of deformation of the crystal structure due to the high pressure (up to 170 GPa) produced by the shock waves [ 26 , 27 , 28 , 29 ]. SWL involves high local stress and temperature gradients, forced mass transfer, mechanical activation, etc.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of NiAl Intermetallic Compound under Shock-Wave Extrusion

et al. 2022

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This paper presents the implementation of the first stage of a study on the synthesis of the intermetallic compound in the Ni-Al system under shock-wave extrusion (SWE). A method was developed and experiments involving SWE of the reactive Ni–Al powder mixture were carried out. As a result, it was possible to obtain up to 56 vol.% of the final product and achieve 100% synthesis of NiAl. The results of metallographic analysis indicate that the process of high-velocity collapse of the tube created conditions for the formation of a cumulative flow, which directly affects the phase formation in NiAl. It was shown that the presence of the central hole in the powder sample reduced the effect of the Mach stem on the homogeneity of the NiAl structure. It was also determined that with a central hole with a 5 mm diameter, the effect of the Mach stem could not be observed at all. The goals of further studies are achieving 90–100 vol.% of the final product and reducing the porosity in the final product. Preliminary experimental studies have shown great potential for SWE to produce composite metal–intermetallic materials.

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Investigation of Nickel Aluminide Formed Due to Shock Loading of Aluminum–Nickel Mixtures in Flat Recovery Ampoules

Cited by 9 publications

References 29 publications

New Functional Materials in Mechanical Engineering and Geology

New Functional Materials in Mechanical Engineering and Geology

Supercritical Water Gasification as Treatment for High Lipid Content Biomass in the Presence of Nickel Catalyst

Synthesis of NiAl Intermetallic Compound under Shock-Wave Extrusion

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