Magnetic, Electrical, and Physical Properties Evolution in Fe3O4 Nanofiller Reinforced Aluminium Matrix Composite Produced by Powder Metallurgy Method

Ashrafi, Negin; Hanim, M. A. Azmah; Jung, Dong Won; Sarraf, Maria; Foroughi, Javad; Sulaiman, Shamsuddin; Hong, Tang Sai

doi:10.3390/ma15124153

Cited by 7 publications

(4 citation statements)

References 42 publications

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“…The dried samples became brittle and delicate, making the construction of a sample difficult without breaking the printed part. Dried toroids were then sintered to densify in attempt to improve magnetic and mechanical properties . The volume change upon drying was not measured, but understanding the change in volume with the removal of the solvent could help explain the brittle nature of the dried material.…”

Section: Resultsmentioning

confidence: 99%

Magnetic Ferrite Nanoparticle Inks for Syringe Printable Inductors

Fedderwitz,

Hammell,

Lujan

et al. 2024

ACS Appl. Electron. Mater.

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Additive manufacturing has the potential to simplify fabrication processes by using a single apparatus that exchanges printable material at the print head to create complex shapes. Circuit components can be made of various materials such as magnetic materials, which are specifically used for many applications, including inductors. Few syringe printable magnetic inks have been explored, and even fewer to create a final product with high magnetic content compared to polymer content (>90 vol %). In this study, syringe printable, colloidal magnetic inks are made using both iron oxide and MnZn doped ferrite nanoparticles by stabilizing them with poly(acrylic acid) (PAA) and adding a free polymer poly(ethylene oxide) (PEO) of various molecular weights and glycerol to control ink viscosity and evaporation rates. Printability is further explained using complex rheology. MnZn doped ferrite inks are printed into toroids and sintered at 1400 °C to increase magnetic permeability. A sintered toroid is constructed into an inductor device and characterized using a Vector Network Analyzer (VNA), which exhibits an inductance of 4.26 μH at 8.5 MHz. This study lays out a template for ferrite inks with the potential to be fabricated into useful passive electronic devices.

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Section: Resultsmentioning

confidence: 99%

Magnetic Ferrite Nanoparticle Inks for Syringe Printable Inductors

Fedderwitz,

Hammell,

Lujan

et al. 2024

ACS Appl. Electron. Mater.

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“…This is affected by the increasing WPG and density of sengon wood after incorporating it with nano-magnetite, so the sengon wood hardness also increased (Rahayu et al 2021). In addition, it is known that the hardness of wood depends on some wood conditions during testing, such as the force applied to the wood, the cross-section of wood being tested, the weight percentage of reinforcement materials, sintering temperatures, wood density, fiber size, and intercellular bonds among the wood fiber (Heräjärvi et al 2004;Ashrafi et al 2022). A good crystallite structure guarantees the materials' high mechanical and magnetic properties.…”

Section: Wood Hardnessmentioning

confidence: 99%

The Effect of Synthetic and Commercial Nano-Magnetite on the Electromagnetic Absorbance Behavior of Magnetic Wood

Rahayu,

Sabarna,

Wahyuningtyas

et al. 2024

J. Sylva Lestari

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Magnetic wood with good electromagnetic wave absorption properties was prepared by comparing synthetic and commercial nano-magnetite (Fe3O4-NP) as sengon (Falcataria moluccana) wood impregnation solution. The co-precipitation method produced a synthetic nano-magnetite with NH4OH as a weak base precursor. Meanwhile, the commercial one was purchased from a supplier. Three levels of nano-magnetite concentration (1%, 2.5%, and 5%) were dispersed in deionized water. The impregnation process was done by applying a vacuum of 0.5 bar for 120 minutes, followed by a pressure of 1 bar for 120 minutes. The results showed that the commercial nano-magnetite caused more improvements in weight percent gain, density, and hardness than the synthetic nano-magnetic, although they were insignificantly different. There was also a reduction in brightness with the overall color change being categorized into other colors because the color became darker with increasing nano-magnetite concentration in both woods. The absorbance capacity of the synthetic nano-magnetite-treated wood was larger than the commercial nano-magnetite-treated wood. This synthetic nano-magnetite-treated wood had been optimally treated at a 5% concentration, making it suitable for use as electromagnetic wave shielding material because it can absorb almost 100% electromagnetic waves. Keywords: Fe3O4, impregnation, nano-magnetite, sengon wood, shielding materials

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“…The presence of reinforcement particles can offer supplementary locations for electron scattering, augmenting the population of free electrons that are accessible for the conduction of electrical current. Another contributing element is the enhanced electrical connectivity between the reinforcing particles and the aluminum matrix [38]. The accomplishment of this objective can be realized through the application of an appropriate interface coating on the reinforcing particles.…”

Section: Thermal Conductivitymentioning

confidence: 99%

A Comprehensive Investigation of BN and VC Reinforcements on the Properties of FSP AA6061 Composites

Moustafa,

Djouider,

Alhawsawi

et al. 2023

Lubricants

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This present study investigated the impact of incorporating boron nitride (BN) and vanadium carbide (VC) reinforcements on various properties of friction stir processed (FSP) AA6061 alloy composites, focusing specifically on grain structure, thermal conductivity, electrical conductivity, and compressive strength. The findings indicate that VC more effectively refines the grain structure of the AA6061 alloy during FSP compared to BN. The inclusion of BN particles in the metal matrix composites resulted in a decrease in both thermal and electrical conductivity. In contrast, the addition of VC particles led to an increase in both thermal and electrical conductivity. The AA6061/VC composite material exhibited the highest thermal conductivity among all composites tested. The electrical conductivity of the hybrid-composite AA6061/30%BN+70%VC showed a slight reduction, measuring only 2.8% lower than the base alloy AA6061. The mono-composite AA6061/VC exhibited a marginal decrease in thermal conductivity, with a measured value only 7.5% lower than the conventional alloy AA6061. However, the mono-composite AA6061/BN displayed a more significant decline, exhibiting a loss of 14.7% and 13.9% in electrical and thermal conductivity, respectively. The composite material comprising 30% BN and 70% VC reinforcement demonstrated the highest compressive strength compared to all other tested composites. The observed percentage enhancement in the mechanical properties of mono and hybrid composites, compared to the parent AA6061 alloy, ranged from 17.1% to 31.5%.

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Magnetic, Electrical, and Physical Properties Evolution in Fe3O4 Nanofiller Reinforced Aluminium Matrix Composite Produced by Powder Metallurgy Method

Cited by 7 publications

References 42 publications

Magnetic Ferrite Nanoparticle Inks for Syringe Printable Inductors

Magnetic Ferrite Nanoparticle Inks for Syringe Printable Inductors

The Effect of Synthetic and Commercial Nano-Magnetite on the Electromagnetic Absorbance Behavior of Magnetic Wood

A Comprehensive Investigation of BN and VC Reinforcements on the Properties of FSP AA6061 Composites

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