Effect of sintering temperature on the synthesis of LiZnMnFe microwave ceramics with controllable electro/magnetic properties

Martinson, K.D.; Иванов, А. А.; Panteleev, I. B.; Попков, В.И.

doi:10.1016/j.ceramint.2021.07.183

Cited by 10 publications

(5 citation statements)

References 56 publications

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“…The outstanding is the spongy structure of the obtained ferrites, which plays an important role in the process of water sources purifying and can increase the sorption activity [62]. It should be noted that the morphology of all synthesized samples corresponds to typical products of solution combustion obtained using glycine as an organic fuel [12,44,58].…”

Section: Morphology Analysismentioning

confidence: 88%

“…Thereupon, in the zinc ferrite micrographs, the micron agglomerates are of an average size of about 2-5 microns, while in the case of nickel ferrite, the average size of these agglomerates increases to 25-30 microns. This variance is most likely associated with a change in the combustion temperature depending on the composition of the reaction medium and was considered in detail in previous works [12,44]. The outstanding is the spongy structure of the obtained ferrites, which plays an important role in the process of water sources purifying and can increase the sorption activity [62].…”

Section: Morphology Analysismentioning

confidence: 91%

“…Among the whole variety of ferrites, stand out. Like multi-component lithium ferrites, Ni-Zn ferrites are the basis for obtaining microwave ceramic products for civil and military applications [10][11][12]. Furthermore, it has been discovered that nanostructured ferrite powders are capable of acting as efficient catalysts [13,14] and photocatalysts (due to their crystalline structure, able to absorb visible light and conduct oxidation processes) [15][16][17] and antimicrobial materials [18,19]; they are also used for the purification of natural water sources along with wastewater from various pollutants (utilizing photocatalysis and absorption) [20,21].…”

Section: Introductionmentioning

confidence: 99%

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Synthesis, Structure, and Antimicrobial Performance of NixZn1−xFe2O4 (x = 0, 0.3, 0.7, 1.0) Magnetic Powders toward E. coli, B. cereus, S. citreus, and C. tropicalis

Martinson

Beliaeva

Sakhno

et al. 2022

Water

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The active development of water purification functional materials based on multicomponent spinel ferrites makes it necessary to search for new efficient methods of obtaining initial nanostructured powders. In this study, a two-stage method for the synthesis of perspective pollutant absorption agents based on NixZn1−xFe2O4 (x = 0, 0.3, 0.7, 1.0) spinel ferrites are proposed and implemented. The approach is based on the synthesis of the initial powder using the solution combustion method and its subsequent thermal treatment in the air. It was found that synthesized samples are single-phase Ni-Zn ferrites with an average crystallite size of 41.4 to 35.7 nm and a degree of crystallinity of ~95–96%. The analysis of antimicrobial activity against four diverse test-cultures: Escherichia coli ATCC 11229 (non-spore-forming gram-negative), Bacillus cereus ATCC 10702 (spore-forming gram-positive), Staphylococcus citreus NCTC 9379 (non-spore-forming gram-positive), and Candida tropicalis ATCC 750 (yeast) showed that almost all of the synthesized powders exhibit an advanced ability to inhibit the growth of the microorganisms mentioned above. The compositions obtained can be a perspective basis for both natural and wastewater purificators with magnetic separation ability and can find biotechnological and biomedical applications as promising antimicrobial materials.

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Section: Morphology Analysismentioning

confidence: 88%

Section: Morphology Analysismentioning

confidence: 91%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Synthesis, Structure, and Antimicrobial Performance of NixZn1−xFe2O4 (x = 0, 0.3, 0.7, 1.0) Magnetic Powders toward E. coli, B. cereus, S. citreus, and C. tropicalis

Martinson

Beliaeva

Sakhno

et al. 2022

Water

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“…This class encompasses compounds with the general chemical formula AFe 2 O 4 , wherein A denotes a divalent metal cation (such as Co, Ni, Zn, Mn, Mg, or Li). Notably, ferrites find significant utility in the realm of radio-electronic devices, with multicomponent lithium and nickel ferrites serving as pivotal components in the production of microwave ceramic products [2]. The prevalence of spinel ferrites in this domain stems from their distinctive magnetic and electromagnetic attributes, which exhibit variability across a wide range, often facilitated by the incorporation of transition metal cations [3].…”

Section: Introductionmentioning

confidence: 99%

Structural, magnetic and electrochemical studies on ZnxMg1-xFe2O4 nanoparticles prepared via solution combustion method

Martinson,

Murashkin,

Lobinsky

et al. 2024

Nanosystems: Phys. Chem. Math.

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Zinc-manganese ferrite nanoparticles, denoted as Zn x Mg 1−x Fe 2 O 4 where x ranges from 0 to 1, were synthesized via solution combustion employing glycine as the organic fuel at a stoichiometric redox ratio. The resultant compositions underwent comprehensive characterization utilizing scanning electron microscopy, energy-dispersive spectroscopy, and powder X-ray diffractometry. Magnetic and electrochemical properties were meticulously examined using a vibrating magnetometer and cyclic voltmeter, respectively. Analysis revealed an average particle size ranging from 24.9 to 30.8 nm across all synthesized samples, with degrees of crystallinity reaching 93-96%. Notably, variations in the magnetic behavior were observed depending on the magnesium content within the samples. The highest magnetic parameters were recorded for Zn 0.4 Mg 0.6 Fe 2 O 4 (M s = 27.78 emu/g, M r = 3.77 emu/g, and H c = 21.4 Oe). Furthermore, the electrochemical capacity of the synthesized powders exhibited dependency on the incorporation of magnesium cations into the crystal lattice. These findings underscore the significance of magnesium content in modulating the magnetic and electrochemical properties of Zn x Mg 1−x Fe 2 O 4 nanoparticles synthesized via solution combustion. KEYWORDS zinc-manganese ferrite, nanoparticles, magnetic properties, electrochemical properties. ACKNOWLEDGEMENTS The reported study was funded by Russian Science Foundation (grant no. 21-73-10070).

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“…The most widespread methods of ferrite synthesis include sol-gel [19][20][21][22], traditional ceramic fabrication [23,24], solid-phase reaction [25,26], self-combustion [27,28], laser deposition [29][30][31], radiation-thermal sintering [32][33][34], and others. Ferrite synthesis techniques are continually improving through the introduction of new additives [35], optimization of sintering temperature regimes [36][37][38], and the combination of soft and hard magnetic ferrites [39].…”

Section: Introductionmentioning

confidence: 99%

Features of Electron Beam Processing of Mn-Zn Ferrites in the Fore-Vacuum Pressure Range in Continuous and Pulse Modes

Klimov,

Bakeev,

Dolgova

et al. 2023

Coatings

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The results of electron beam processing of Mn-Zn ferrite samples using pulsed and continuous electron beams in the fore-vacuum pressure range (10 Pa) are presented. We find that continuous electron beam processing leads to surface structuring of the ferrite, changes in elemental composition on the surface, and electrical property modification. The degree of ferrite parameter changes exhibits a threshold behavior. For surface processing temperatures below 900 °C, changes are barely noticeable, while for temperatures over 1100 °C the surface resistance decreases by more than an order of magnitude to values of less than 3 kOhm. Electron beam processing with millisecond pulse duration and pulse energy density exceeding 15 J/cm2 results in the formation of low zinc content melt islands, while the remaining surface area (outside the islands) elemental content and ferrite properties remain largely unchanged. The thickness of the modified layer depends on the processing mode and can be controlled over the range of 0.1–0.5 mm. Due to its low resistance, the modified layer can be utilized to enhance the RF-absorbing properties of the ferrite, which is important in the design of modern magnetic elements of electronic equipment.

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Effect of sintering temperature on the synthesis of LiZnMnFe microwave ceramics with controllable electro/magnetic properties

Cited by 10 publications

References 56 publications

Synthesis, Structure, and Antimicrobial Performance of NixZn1−xFe2O4 (x = 0, 0.3, 0.7, 1.0) Magnetic Powders toward E. coli, B. cereus, S. citreus, and C. tropicalis

Synthesis, Structure, and Antimicrobial Performance of NixZn1−xFe2O4 (x = 0, 0.3, 0.7, 1.0) Magnetic Powders toward E. coli, B. cereus, S. citreus, and C. tropicalis

Structural, magnetic and electrochemical studies on ZnxMg1-xFe2O4 nanoparticles prepared via solution combustion method

Features of Electron Beam Processing of Mn-Zn Ferrites in the Fore-Vacuum Pressure Range in Continuous and Pulse Modes

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