Crystal structure and dispersed composition of multicomponent oxide (NiCoCrFeAl)xOy nanoparticles obtained via joint exploding wires
K.V. Suliz, A.V. Pustovalov, A.V. Pervikov
Institute of Strength Physics and Materials Science of Siberian Branch of RAS
DOI: 10.26456/pcascnn/2025.17.916
Original article
Abstract: Nanoparticle samples of (NiCoCrFeAl)xOy with 18, 30, and 35 at.% Al were synthesized via the joint electrical explosion of wires in an Ar + 25 mol.% O2. It has been established that spherical nanoparticles with a predominantly spinel-type crystal structure are formed during the joint electrical explosion of wires containing the specified metals in concentrations ranging from 5 to 35 at.%. The lattice parameter of the spinel phase decreases from 8,251 to 8,182 Å as the aluminum content increases from 18 to 35 at.%. Energy-dispersive spectroscopy data confirm a homogeneous distribution of metals within the nanoparticles. It is shown that it is necessary to take into account not only the ratio of metals in the explosion products, but also the thermodynamic conditions for the formation of nanoparticles. These conditions are determined by the pressure and thermal conductivity of the buffer gas used to obtain (NiCoCrFeAl)xOy nanoparticles with a given crystalline structure using the method of joint electrical explosion of wires.
Keywords: multicomponent oxide, nanoparticles, exploding wires, transmission electron microscopy, energy dispersive analysis, X-ray phase analysis
- Konstantin V. Suliz – Junior Researcher, Laboratory of Nanobioengineering, Institute of Strength Physics and Materials Science of Siberian Branch of RAS
- Alexey V. Pustovalov – Junior Researcher, Laboratory of Nanobioengineering, Institute of Strength Physics and Materials Science of Siberian Branch of RAS
- Alexander V. Pervikov – Ph. D., Researcher, Laboratory of Physical Chemistry of Ultrafine Materials, Institute of Strength Physics and Materials Science of Siberian Branch of RAS
For citation:
Suliz K.V., Pustovalov A.V., Pervikov A.V. Kristallicheskaya struktura i dispersnyj sostav nanochastits mnogokomponentnogo (NiCoCrFeAl)xOy oksida, poluchennykh sovmestnym elektricheskim vzryvom provolochek [Crystal structure and dispersed composition of multicomponent oxide (NiCoCrFeAl)xOy nanoparticles obtained via joint exploding wires], Fiziko-khimicheskie aspekty izucheniya klasterov, nanostruktur i nanomaterialov [Physical and chemical aspects of the study of clusters, nanostructures and nanomaterials], 2025, issue 17, pp. 916-927. DOI: 10.26456/pcascnn/2025.17.916. ⎘
Full article (in Russian): download PDF file
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