Characterization of nanostructured Mg–Cu–Ni powders prepared by mechanical alloying

Kursun, Celal; Göğebakan, Musa

doi:10.1016/j.jallcom.2014.08.126

Cited by 36 publications

(18 citation statements)

References 27 publications

(31 reference statements)

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“…According to their results, mechanical milling can offer a homogeneous distribution for low reinforcement content. However, the high degree of work deformation reduces the ductility of the matrix material, and the compressibility of alloy and composite powders decreases due to the increase in hardening during the mechanical milling process [20][21][22]. Therefore, it is essential to develop an easy and effective way to achieve a uniform mixing of reinforcement particles in the matrix, which will enable an adequate deformation capacity of the powder compacts.…”

Section: Introductionmentioning

confidence: 99%

Microstructure, electrical conductivity and hardness of multilayer graphene/Copper nanocomposites synthesized by flake powder metallurgy

2015

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In this study, the influence of multilayer graphene content on the green and sintered properties of the multilayer graphene/Copper nanocomposites was investigated. Flake powder metallurgy, as a new production method, was employed to prepare the multilayer graphene reinforced copper matrix nanocomposites. Results showed that the increase in agglomeration content inhibited particle-particle contact during the sintering process and therefore sintered density decreased with increasing the multilayer graphene content. The green density of 8.46 g/cm 3 was found for the monolithic Cu sample, which was 16.4% higher than that of the 5 wt% MLG/ Copper nanocomposites. The high conductivity value (78.5 IACs) was obtained with 0.5 wt% the multilayer graphene reinforced nanocomposites. The electrical conductivity of sintered 5 wt% the multilayer graphene/Copper nanocomposites was 61.48 IACs. When the amount of the multilayer graphene particles as higher than 3 wt%, the decreasing rate in hardness significantly increased. The decreasing rate in the hardness of the multilayer graphene/Copper nanocomposites can be attributed to decrease in density and the non-homogeneous distribution of multilayer graphene particulates in Cu matrix.

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Section: Introductionmentioning

confidence: 99%

Microstructure, electrical conductivity and hardness of multilayer graphene/Copper nanocomposites synthesized by flake powder metallurgy

2015

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“…Simultaneous peak broadening and intensity reduction of Al peaks showed crystallite refinement through milling process [28][29][30]. In addition, SEM images of the milled powders indicated that the particle sizes became smaller with increase in the milling time.…”

Section: Discussionmentioning

confidence: 92%

Microstructure, mechanical and tribological behavior of hot-pressed mechanically alloyed Al–Zn–Mg–Cu powders

2015

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“…It can be seen clearly in Figs 6–8(f) that most of the elemental peaks disappeared after 48 h of milling. These peaks which disappear after 48 h milling time is usually attributed to the creation of nanostructured solid solution 48 . The all powders subjected to heat treatment at 1000 °C for 2 h after 48 h milling.…”

Section: Resultsmentioning

confidence: 99%

Structural, electrical and magnetic properties of Nd – A – CoO3 (A = Sr, Ca) Perovskite Powders by Mechanical Alloying

Kursun

Göğebakan

Uludag

et al. 2018

Sci Rep

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In this work, NdCoO3 (NCO), Nd0.8Sr0.2CoO3 (NSCO) and Nd0.9Ca0.1CoO3 (NCCO) perovskite cobaltites were synthesised by mechanical alloying method. Structural evolutions, magnetic and electrical properties of these perovskite were systematically examined through X-ray diffraction (XRD), scanning electron microscopy with energy-dispersive X-ray detection (SEM-EDX), transmission electron microscopy (TEM), differential scanning calorimetry (DSC), vibration sample magnetometer (VSM) and impedance analyser (IA). The XRD and SEM results revealed that the microstructure of the perovskite materials changed during mechanical alloying. The average crystallite size of the perovskite materials was calculated by Debye Scherrer equation and was confirmed by TEM, and it was determined ~19 nm. From the VSM results, the all perovskites had soft ferromagnetic properties. IA measurements showed that relatively dielectric constants of the perovskites decreased with increasing frequency. Therefore, for the first time, nanostructured NCO, NSCO and NCCO perovskites exhibiting good properties were produced in only two steps which are milling and heating.

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Characterization of nanostructured Mg–Cu–Ni powders prepared by mechanical alloying

Cited by 36 publications

References 27 publications

Microstructure, electrical conductivity and hardness of multilayer graphene/Copper nanocomposites synthesized by flake powder metallurgy

Microstructure, electrical conductivity and hardness of multilayer graphene/Copper nanocomposites synthesized by flake powder metallurgy

Microstructure, mechanical and tribological behavior of hot-pressed mechanically alloyed Al–Zn–Mg–Cu powders

Structural, electrical and magnetic properties of Nd – A – CoO3 (A = Sr, Ca) Perovskite Powders by Mechanical Alloying

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