Dendritic Ag–Fe nanocrystalline alloy synthesized by pulsed electrodeposition and its characterization

The microwave properties of a composite material containing flakes of finemet-type nanocrystalline alloy placed in the epoxy matrix have been investigated. Two compositions have been studied: with 15% and 30% flakes. Frequency dependences of transmission and reflection coefficients are measured in the frequency range from 12 to 38 GHz. The dielectric permittivity and magnetic permeability are obtained, and the microwave losses are calculated. The dependences of transmission and reflection coefficients have been drawn as functions of wave frequency and thickness of the composite material, taking into account the frequency dependences of permittivity and permeability. The regions of maximal and minimal microwave absorption have been defined. The influence of wave interference on the frequency dependence of microwave absorption is studied.

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CORROSION AND WEAR PROPERTIES OF ELECTRODEPOSITED TERTIARY NANOCOMPOSITE Zn–Ni (ALUMINA–YITTRIA–GERAPHENE) COATING

Surface Review and Letters ◽

10.1142/s0218625x17500664 ◽

2016 ◽

Vol 24 (05) ◽

pp. 1750066 ◽

Cited By ~ 1

Author(s):

HAMED RAHMANI ◽

MAHMOOD ALIOFKHAZRAEI ◽

ABDOSSALAM KARIMZADEH

Keyword(s):

Duty Cycle ◽

Zinc Sulphate ◽

Pulse Current ◽

Corrosion And Wear ◽

Pulsed Current ◽

Passive Current Density ◽

Wear Properties ◽

Nickel Zinc ◽

Pulsed Electrodeposition ◽

Passive Current

Nanocomposite Ni–Zn coatings containing 80 wt.% Al2O3, 5 wt.% Y2O3 and 15 wt.% graphene were fabricated by pulsed electrodeposition method in nickel–zinc sulphate-based electrolyte and effects of pulse current parameters on nickel and other element contents, microstructure, resistance to corrosion and tribological properties of the coatings were investigated. The pulsed current with duty cycle from 10% to 50% was applied to different samples and frequency changed gradually from 500 to 4000[Formula: see text]Hz in five steps during coating process. Increasing the duty cycle led to decrease of absorbed nanoparticles in the surface of the coatings from 4.4 vol% to 3.58 vol% The sample coated with 10% duty cycle had utmost alumina content in the coating surface, 3.5 vol% in first layer up to 4.4 vol% in fifth layer. The sample coated with 30% duty cycle had higher corrosion resistance with passive current density of 2.5[Formula: see text]mA/cm2. Furthermore, the results showed that by increasing the duty cycle, wear rate had been increased up to 1.3[Formula: see text][Formula: see text][Formula: see text]10[Formula: see text][Formula: see text]mm2/N[Formula: see text]m.

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Effect of P microalloying on magnetic properties and structure of FeSiBNbCu nanocrystalline alloy

Journal of Materials Science Materials in Electronics ◽

10.1007/s10854-020-05159-9 ◽

2021 ◽

Author(s):

Changjiu Wang ◽

Jiawei Li ◽

Xuhang Zhang ◽

Jiaxin Wu ◽

Aina He ◽

...

Keyword(s):

Magnetic Properties ◽

Nanocrystalline Alloy

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Structural and magnetic characterization of (FeCo)1−xCrx nanowires array prepared by pulsed electrodeposition

Applied Physics A ◽

10.1007/s00339-020-04113-0 ◽

2021 ◽

Vol 127 (3) ◽

Author(s):

Ebrahim Paimozd ◽

Omid Mirzaee ◽

Ali Ghasemi ◽

Mohammad Tajally

Keyword(s):

Magnetic Characterization ◽

Pulsed Electrodeposition ◽

Nanowires Array

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Ultra-long Fe nanowires by pulsed electrodeposition with full filling of alumina templates

Materials Research Express ◽

10.1088/2053-1591/1/1/015028 ◽

2014 ◽

Vol 1 (1) ◽

pp. 015028 ◽

Cited By ~ 17

Author(s):

J Azevedo ◽

C T Sousa ◽

J Ventura ◽

A Apolinario ◽

A Mendes ◽

...

Keyword(s):

Pulsed Electrodeposition

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Effect of the oxidation in the surface coercive force of nanocrystalline alloy

Journal of Magnetism and Magnetic Materials ◽

10.1016/j.jmmm.2006.02.210 ◽

2006 ◽

Vol 304 (2) ◽

pp. e630-e632 ◽

Cited By ~ 1

Author(s):

Laura Elbaile ◽

Angel R. Pierna ◽

Jose A. García ◽

Rosario D. Crespo ◽

Gemma Vara ◽

...

Keyword(s):

Coercive Force ◽

Nanocrystalline Alloy

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Current Transformer with Toroidal Nanocrystalline Alloy Core

IEEE Latin America Transactions ◽

10.1109/tla.2006.4472108 ◽

2006 ◽

Vol 4 (3) ◽

pp. 160-164 ◽

Cited By ~ 1

Author(s):

Benedito Antonio Luciano ◽

Raimundo Carlos Silverio Freire ◽

Jose Gutembergue de Assis Lira ◽

Glauco Fontgalland ◽

Walman Benicio de Castro

Keyword(s):

Nanocrystalline Alloy ◽

Current Transformer

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Processing and Excellent Oxidation Resistance of Nanocrystalline Fe-Cr Alloys

Materials Science Forum ◽

10.4028/www.scientific.net/msf.654-656.1122 ◽

2010 ◽

Vol 654-656 ◽

pp. 1122-1125

Author(s):

Rajeev K. Gupta ◽

B.V. Mahesh ◽

R.K. Singh Raman ◽

Carl C. Koch

Keyword(s):

Oxidation Resistance ◽

Secondary Ion Mass Spectrometry ◽

Nanocrystalline Alloy ◽

High Energy ◽

Processing Route ◽

Protective Oxide ◽

Time Intervals ◽

Regular Time ◽

Order Of Magnitude ◽

Energy Ball

Nanocrystalline and microcrystalline Fe-10Cr alloys were prepared by high energy ball milling followed by compaction and sintering, and then oxidized in air for 52 hours at 400°C. The oxidation resistance of nanocrystalline Fe-10Cr alloy as determined by measuring the weight gain after regular time intervals was compared with that of the microcrystalline alloy of same chemical composition (also prepared by the same processing route and oxidized under identical conditions). Oxidation resistance of nanocrystalline Fe10Cr alloy was found to be in excess of an order of magnitude superior than that of microcrystalline Fe10Cr alloy. The paper also presents results of secondary ion mass spectrometry of oxidized samples of nanocrystalline and microcrystalline Fe-Cr alloys, evidencing the formation of a more protective oxide scale in the nanocrystalline alloy.

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