Evaluation of thermal conductivity of GNPs-doped B4C/Al-Si composites in terms of interface interaction and electron mobility

Polat, Safa; Sun, Yavuz; Cevik, Engin; Colijn, Hendrik O.

doi:10.1016/j.diamond.2019.107457

Cited by 17 publications

(5 citation statements)

References 48 publications

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“…43 Graphene nanoplatelets and boron carbide reinforced together might increase the heat conduction of the Mg composites since both of the phonon vibrations and electron transfer of metal transmitted very fast by pi and the sigma bonds in the microstructure. 44 In this report, once B 4 C content increases from 1 wt.% to 2 wt.%, thermal conductivity decrease by 5.3%. graphene addition to Mg-1B 4 C composite exhibits a positive effect (7.2% enhancement) which can be attributed to the good doping ability of graphene on the surface of B 4 C ceramic in the mixture process and having excellent thermal conductivity values of graphene nanoplatelets.…”

Section: Thermal Analysis Resultsmentioning

confidence: 65%

Influence of GNPs and B4C reinforcements on mechanical, thermal and wear properties of magnesium matrix composite produced by powder metallurgy

Sun

Cevik

Türen

et al. 2021

Journal of Composite Materials

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In this study, graphene nanoplatelets (GNPs) and boron carbide (B4C) nano reinforcements were incorporated to the pure magnesium (Mg). Powder metallurgy route was used to fabricate composite samples. Microstructures of specimens were examined and tensile, hardness, wear tests were performed to determine the mechanical and tribological performance of produced samples. The results indicate that the hardness was increased especially with the addition of 2% B4C and 0.5% GNPs reinforcements. A general trend was observed for the enhancements of yield and tensile strengths when nano reinforcements were added to the pure magnesium. The composite samples showed better wear resistance than the unreinforced sample. However, thermal conductivity began to decrease with the addition of B4C reinforcements. It is also observed that the porosity level was also higher for the composite samples.

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Section: Thermal Analysis Resultsmentioning

confidence: 65%

Influence of GNPs and B4C reinforcements on mechanical, thermal and wear properties of magnesium matrix composite produced by powder metallurgy

Sun

Cevik

Türen

et al. 2021

Journal of Composite Materials

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“…This interface thermal barrier, also known the Kapitza resistance [35,37], models the quality of the heat flow transfer according to the chemical nature of the two phases involved. Some studies have shown the importance of this interface thermal resistance on the modelling of TC of MMCs [35,38]. Indeed, the thermal energy is conducted by different charge carriers such as electrons, ions, and holes for the electronic contribution and phonons for the contribution of the network.…”

Section: Thermal Propertiesmentioning

confidence: 99%

Characterization of Al/B4C composite materials fabricated by powder metallurgy process technique for nuclear applications

BRILLON

Garcia

RIALLANT

et al. 2022

Journal of Nuclear Materials

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“…Moreover, an electric current obtained from an electrical device can regain balance at the moment of any uctuation. Current values are usually measured from the material's resistance-voltage relationship alongside conductivity and resistivity [3], [4], [5] & [6]. Aluminum a metallic element had successfully altered the electrical properties of ceramic by producing its current stability [7],[8], [9] & [10].…”

Section: Introductionmentioning

confidence: 99%

The Electrical Conductivity Probe, Pressure Gauge Hike, and Temperature Inflation of Different shaped Al-SiO 2 elementary Materials

Abodunrin,

Adeleke

2023

Preprint

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The indication of an increase in pressure and the particle size relevance on the electrical properties of Al-SiO2 embodiment at elevated temperatures are reported in this study. The sample area, thickness range, and particle size are respectively 34.0 x 35.0 mm2, 20.8–22.10 mm, and 25µm. The constituents of the same particle size are made into solids by applying the compaction method at various pressures of 7 and 20 to 60 MPa. Results obtained from observations showed that the composition of Al in SiO2, temperature increase, pressure upsurge, and constant particle size greatly altered the resistance, resistivity, and electrical conductivity of the compacted materials. It was revealed that samples were found with electrical conductivity between 0–40 and 60–100% weight of Al in composites The resistance reduces with an increase in pressure. Resistance increases with an increase in temperature at the specific composition of Al but displayed resistance breakdown at the equal composition of constituent and at room temperature. The resistance also reduces with an increase in temperature at the remaining composition after the conductivity breakdown. The conductivity increases with the increasing percent weight of Al and it also increases with increasing temperature, before conductivity breakdown.

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Evaluation of thermal conductivity of GNPs-doped B4C/Al-Si composites in terms of interface interaction and electron mobility

Cited by 17 publications

References 48 publications

Influence of GNPs and B4C reinforcements on mechanical, thermal and wear properties of magnesium matrix composite produced by powder metallurgy

Influence of GNPs and B4C reinforcements on mechanical, thermal and wear properties of magnesium matrix composite produced by powder metallurgy

Characterization of Al/B4C composite materials fabricated by powder metallurgy process technique for nuclear applications

The Electrical Conductivity Probe, Pressure Gauge Hike, and Temperature Inflation of Different shaped Al-SiO 2 elementary Materials

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