Effects of Fe–Ni alloy nanoparticles on the mechanical properties and microstructures of Al2O3/Fe–Ni nanocomposites prepared by rapid sintering

Lee, Young-In; Lee, Jun-Tae; Choa, Yong‐Ho

doi:10.1016/j.ceramint.2012.02.011

Cited by 10 publications

(2 citation statements)

References 31 publications

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“…Nanocrystalline Ni-Fe magnetic thin films gradually replaced the traditional micro-crystalline magnetic material due to their significant soft magnetic properties. In the past 4,5,12,13 some effort has been made to study the nanocrystalline nickel-iron alloy matrix composites with various type of ceramic particles owing to their excellent physical properties, however corrosion behavior, magnetic and electrical properties of such coatings have not been studied in detail. The increase in the mechanical properties due to incorporation of ceramic particles corresponded to a degradation of electrical characteristics.…”

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Studies on Electrodeposition, Microstructure and Physical Properties of Ni-Fe/In₂O₃Nanocomposite

Chaudhari

Singh

2015

J. Electrochem. Soc.

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In 2 O 3 nanoparticles (<100 nm) up to 5 wt% are incorporated into Ni-Fe alloy matrix by electrodeposition which enhance both corrosion resistance and hardness. Plating parameters like current density, concentration of metal ions and In 2 O 3 particles, agitation and the temperature of the bath were optimized to achieve acceptable quality of the coatings. Effect of current density on the development of Ni-Fe/In 2 O 3 nanocomposites and their physical properties was mainly studied. Coatings thus obtained were characterized by SEM-EDAX, XRD, TEM and AFM and surface morphology, crystal structure, microhardness, corrosion resistance, magnetic behavior and electrical resistivity of the nanocomposites were studied. The incorporation of conducting In 2 O 3 particles in a alloy matrix resulted in a higher electrical conductivity than the matrix. X-ray diffraction results showed that the incorporation of In 2 O 3 particles does not affect the Ni-Fe alloy fcc structure but alters the texture of the deposits favoring (111) crystallographic orientation and is independent of the applied current density for deposition. The crystallite size of the nanocomposites is found in the range of 5-13 nm with almost negligible strain.Metal matrix nanocomposite films have drawn great interest due to their unique properties e.g. mechanical, electrical, magnetic and corrosion resistant properties compared with those of conventional materials. 1-4 Out of several techniques for fabrication of alloys and composites, electrodeposition method has been widely used during the past several decades due to its more technologically feasible and economically superior nature and it is emerging as method of choice for the deposition of nanocomposite films in past few years. 2,3,5,6 The electrodeposition of metals is greener route of thin film growing and may also be of interest for fundamental studies of their nanometric nature. The reinforced particles can significantly improve the properties of the coatings depending on the nature, size, concentration and distribution of particles. 5,7 Electroplating parameters like current density, concentration of electrolyte and ceramic particle, temperature, stirring rate and duration of electrolysis also influence the properties of nanocomposites. 8,9 Superior mechanical properties of nickel-iron alloy have been reported by many investigators 10,11 which are strongly dependent on the iron content of the deposits. Permalloy (80 wt% Ni, 20 wt% Fe) has promising properties for practical applications e.g. their interesting magnetic and mechanical properties. Nanocrystalline Ni-Fe magnetic thin films gradually replaced the traditional micro-crystalline magnetic material due to their significant soft magnetic properties. In the past 4,5,12,13 some effort has been made to study the nanocrystalline nickel-iron alloy matrix composites with various type of ceramic particles owing to their excellent physical properties, however corrosion behavior, magnetic and electrical properties of such coatings have not been studied in d...

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confidence: 99%

Studies on Electrodeposition, Microstructure and Physical Properties of Ni-Fe/In₂O₃Nanocomposite

Chaudhari

Singh

2015

J. Electrochem. Soc.

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“…Al 2 O 3 is one of the most used advanced ceramic materials due to its superior properties, such as high compressive strength, high hardness, and high thermal stability as compared to the other structural ceramics [1]. However, the use of Al 2 O 3 for structural applications is frequently restricted by its low fracture toughness and low tensile strength [2][3][4].…”

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Processing and mechanical characterization of Al2O3/Ni and Al2O3/C0 composites by pressureless sintering of nanocomposite powders

Kafkaslıoğlu

Yılmaz

Tür

2018

PAC

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Al 2 O 3 /Ni and Al 2 O 3 /Co nanopowder mixtures (with 3 vol.% of metallic phase) were synthesized by heterogeneous precipitation method. In order to increase the green strength, polypropylene carbonate (PPC) was used as a binder while preparing green compacts. Uniaxially pressed powder mixtures were sintered at 1550°C for 2 h in a reducing atmosphere. The effects of Ni and Co nanophases on the microstructure and mechanical properties of Al 2 O 3 ceramics were studied by X-ray diffraction, scanning electron microscopy, Vickers indentation technique and three-point bending tests. The metallic phase hindered the densification of alumina matrix, yet hardness values of Al 2 O 3 , Al 2 O 3 /Ni, and Al 2 O 3 /Co composites were comparable. Vickers fracture toughness results indicate that the composites have higher fracture toughness, but the characteristic flexural strength and Weibull modulus are higher for the pure Al 2 O 3 .

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Structural and Magnetic Properties of Fe–Co/Al2O3 Nanocomposite Powder Produced by Mechanical Alloying

Younes

Bacha

Zergoug

2017

Powder Metall Met Ceram

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Effects of Fe–Ni alloy nanoparticles on the mechanical properties and microstructures of Al2O3/Fe–Ni nanocomposites prepared by rapid sintering

Cited by 10 publications

References 31 publications

Studies on Electrodeposition, Microstructure and Physical Properties of Ni-Fe/In₂O₃Nanocomposite

Studies on Electrodeposition, Microstructure and Physical Properties of Ni-Fe/In₂O₃Nanocomposite

Processing and mechanical characterization of Al2O3/Ni and Al2O3/C0 composites by pressureless sintering of nanocomposite powders

Structural and Magnetic Properties of Fe–Co/Al2O3 Nanocomposite Powder Produced by Mechanical Alloying

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Effects of Fe–Ni alloy nanoparticles on the mechanical properties and microstructures of Al2O3/Fe–Ni nanocomposites prepared by rapid sintering

Cited by 10 publications

References 31 publications

Studies on Electrodeposition, Microstructure and Physical Properties of Ni-Fe/In2O3Nanocomposite

Studies on Electrodeposition, Microstructure and Physical Properties of Ni-Fe/In2O3Nanocomposite

Processing and mechanical characterization of Al2O3/Ni and Al2O3/C0 composites by pressureless sintering of nanocomposite powders

Structural and Magnetic Properties of Fe–Co/Al2O3 Nanocomposite Powder Produced by Mechanical Alloying

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Studies on Electrodeposition, Microstructure and Physical Properties of Ni-Fe/In₂O₃Nanocomposite

Studies on Electrodeposition, Microstructure and Physical Properties of Ni-Fe/In₂O₃Nanocomposite