The particle size distribution function in the composite films and microwave magnetic properties

Котов, Л. Н.; Ustyugov, V. A.; Vlasov, V. S.; Turkov, V. K.; Lasek, M. P.; Kalinin, Yu. E.; Sitnikov, A. V.; Голубев, Е. А.

doi:10.1088/1757-899x/123/1/012009

Cited by 7 publications

(3 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It is necessary to study UHF electrical properties of thin composite films to explain mechanisms of electrical transfer, absorption of electromagnetic waves, and to understand contribution of nano-and microstructure of composite films to these properties. New mechanisms of electrical transfer, observed in composite films, nonlinear effects, changes in the temperatures of phase transformations, and other effects may become the key for the development of nanoelectronics [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15]. The study of specific impedance spectra during the passage of UHF signals of current and propagation of an electromagnetic field in films allows revealing features of behavior of electrodynamic properties, especially in UHF range, which is widely used in modern radio engineering and communications.…”

Section: Introductionmentioning

confidence: 99%

Magnetic structure and UHF conducting properties of composite films (CoFeZr+Al₂O₃) and (CoNbTa+SiO₂)

Котов

Lasek

2022

J. Phys.: Conf. Ser.

View full text Add to dashboard Cite

Composite films of A series of compositions [(Co0.45Fe0.45Zr0.10)x + (Al2O3)(1 – x)/5], x = 0.25-0.66 and B series of compositions [(Co0.86Nb0.12Ta0.02)x+(SiO2)(1–x)/3], x=0.14-0.78 were investigated. Images of magnetic micro- and nanostructures of the A, B series composite films were obtained. At small x≤0.3, we observe a chaotic spread of magneto-metallic nanoparticles in a dielectric matrix. In the range 0.30<x<0.55, we observe a mixture of metallic and dielectric microparticles. At large x>0.6, we observe a chaotic scattering of dielectric nanoparticles in a magneto-metallic matrix. We obtained dependences of the specific impedance modulus of composite metal-dielectric films on the current frequency and on the concentration of the metal alloy of A, B series films. The analysis of the spectra showed that films in the frequency range from 0.1 to 3 GHz could exhibit three behaviors of the impedance spectra. For films with x up to the percolation threshold, a capacitive character is observed. The impedance in the field of percolation processes is capacitive, inductive or mixed character. After the percolation threshold, the impedance has an inductive character, and the frequency-dependent character of the magnetic permeability of the films can make a large contribution to the behavior of the spectra.

show abstract

Section: Introductionmentioning

confidence: 99%

Magnetic structure and UHF conducting properties of composite films (CoFeZr+Al₂O₃) and (CoNbTa+SiO₂)

Котов

Lasek

2022

J. Phys.: Conf. Ser.

View full text Add to dashboard Cite

show abstract

“…To satisfy these inquires more and more ceramics [1][2][3][4][5][6][7] and ceramic matrix composites [8,9] or cermets [10,11] are applied. To increase the wear resistance and live times of machine parts or machine tools very often hard ceramic coatings and ceramic based composites are used [12][13][14]. Generally in cases when the artificial materials have to work under high mechanical loads and working temperatures or bio-environment probably the ceramic materials and ceramic composites are the bests [15][16][17][18][19].…”

Section: Introductionmentioning

confidence: 99%

Influence of Sintering Atmosphere and IG-017 Bio-Original Additives on Porosity of Ceramics Made from High Purity Al2O3 and SiO2 Powders

Kurovics¹,

Gömze²

2017

The Publications of the MultiScience - XXXI. MicroCAD International Scientific Conference

View full text Add to dashboard Cite

Using high purity alumina and quartz powders and IG-017 bio-original additives of Igrex Ltd. the authors have developed new ceramic composite materials which can be applied in different industrial environment. The main goal was to fine a material and morphological structures of high performance ceramic composites as frames for development complex materials for extreme consumptions. For this the mixed powders of Al 2 O 3 , SiO 2 and IG-017 bio-original additive were uniaxially pressed at different compaction pressures into cylindrical shapes and were sintered in electric kiln under oxidation (1) and nitrogen (2) atmosphere. The grain size distribution of the raw materials was determined by laser granulometry. There thermo-physical properties were also determined by derivatography. The prepared and sintered specimens were tested on geometrical sizes, porosity and mechanical strength. In this work the authors present the results of their research and investigation.

show abstract

“…To satisfy these inquires more and more ceramics [1][2][3][4][5][6][7] and ceramic matrix composites [8,9] or cermets [10,11]. To increase the wear resistance and live times of machine parts or machine tools the ceramic coatings and ceramic based composites are used in very often [12][13][14] Generally in cases when the machine parts and machine tools have to work under high mechanical loads and working temperatures the ceramic materials and ceramic composites are probably the best [15][16][17][18].…”

Section: Introductionmentioning

confidence: 99%

Development Ceramic Composites Based on Al2O3, SiO2 and IG-017 Additive

Kurovics¹,

Shmakova²,

Kanev³

et al. 2017

The Publications of the MultiScience - XXXI. MicroCAD International Scientific Conference

View full text Add to dashboard Cite

Based on high purity alumina and quartz powders and IG-017 bio-original additives the authors have developed new ceramic composite materials for different industrial purposes. The main goal was to fine a material and morphological structures of high performance ceramic composites as frames for development complex materials for extreme consumptions in the future. For this the mixed powders of Al 2 O 3 , SiO 2 and IG-017 bio-original additive were uniaxially pressed at different compaction pressures into disc shapes and were sintered in electric kiln under air (1) and nitrogrn (2) atmosphere. The grain size distributions of the raw materials were determined by laser granulometry. There thermo-physical properties were also determined by derivatography.The prepared and sintered specimens were tested on geometrical sizes, microstructure and morphology by scanning electron microscopy, porosity and water absorption. In this work the authors present the results of their research and investigation.

show abstract

The particle size distribution function in the composite films and microwave magnetic properties

Cited by 7 publications

References 0 publications

Magnetic structure and UHF conducting properties of composite films (CoFeZr+Al₂O₃) and (CoNbTa+SiO₂)

Magnetic structure and UHF conducting properties of composite films (CoFeZr+Al₂O₃) and (CoNbTa+SiO₂)

Influence of Sintering Atmosphere and IG-017 Bio-Original Additives on Porosity of Ceramics Made from High Purity Al2O3 and SiO2 Powders

Development Ceramic Composites Based on Al2O3, SiO2 and IG-017 Additive

Contact Info

Product

Resources

About

The particle size distribution function in the composite films and microwave magnetic properties

Cited by 7 publications

References 0 publications

Magnetic structure and UHF conducting properties of composite films (CoFeZr+Al2O3) and (CoNbTa+SiO2)

Magnetic structure and UHF conducting properties of composite films (CoFeZr+Al2O3) and (CoNbTa+SiO2)

Influence of Sintering Atmosphere and IG-017 Bio-Original Additives on Porosity of Ceramics Made from High Purity Al2O3 and SiO2 Powders

Development Ceramic Composites Based on Al2O3, SiO2 and IG-017 Additive

Contact Info

Product

Resources

About

Magnetic structure and UHF conducting properties of composite films (CoFeZr+Al₂O₃) and (CoNbTa+SiO₂)

Magnetic structure and UHF conducting properties of composite films (CoFeZr+Al₂O₃) and (CoNbTa+SiO₂)