Effect of porosity and reinforcement content on the electrical conductivity of spray formed 2014-Al alloy + SiC<sub>p</sub>composites

Srivastava, V. C.; Schneider, A.; Uhlenwinkel, Volker; Bauckhage, Klaus

doi:10.1023/b:jmsc.0000045611.25373.20

Cited by 12 publications

(7 citation statements)

References 7 publications

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“…It has been reported by other researchers that the electrical resistivity of composite material is affected by a combination of the following factors [8,[31][32][33][34]: (i) the presence of reinforcement, (ii) the volume fraction of reinforcement, (iii) the reinforcement shape, (iv) the reinforcement size, and (v) the type of reinforcement and matrix.…”

Section: Resultsmentioning

confidence: 99%

Reinforcements at nanometer length scale and the electrical resistivity of lead-free solders

Babaghorbani

Nai

Gupta

2009

Journal of Alloys and Compounds

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Section: Resultsmentioning

confidence: 99%

Reinforcements at nanometer length scale and the electrical resistivity of lead-free solders

Babaghorbani

Nai

Gupta

2009

Journal of Alloys and Compounds

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“…As shown in Figure 8, both the experimental and calculated values decrease with the increasing sum values of the porosity and MC reinforcement material, due to their non-conducting nature, acting as a barrier for the electron flow. 68 Additionally, after 20% content in the composites led to more porosity in the matrix which decreased the measured conductivity and resulted in a deviation from the calculated values.…”

Section: Resultsmentioning

confidence: 98%

Investigation of magnetite concentrate utilization as reinforcement in aluminum matrix composites

Birol

Mısırlıoğlu

Çakιr

2022

Journal of Composite Materials

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The utilization of harder particles with magnetic properties as reinforcement in aluminum matrix composites (AMCs) enhances the mechanical and magnetic properties of aluminum. Present study investigates the utilization of magnetite concentrate (MC), which is composed of mainly Fe3O4, as reinforcement in AMCs. To achieve this goal, commercially pure Al and MC powders were blended (0–40 wt.% of MC) and ground by high energy ball milling, pressed, and sintered at 600°C for 30 min under an argon atmosphere. The products were characterized by XRD, and SEM analyses. Also, the density and porosity of the samples were determined by Archimedes’ principle. According to the results, it was observed that with the increasing reinforcement amount, agglomeration of the MC particles inside the Al matrix, as well as the porosities of the samples, increased. 10–20 wt. % of MC containing samples, the porosity values were obtained around 12 vol. %, however higher reinforcement amounts, raised the porosity values to 17.33 vol. % linearly. With the increment in both nonconductive MC particles and pores, the electrical conductivity of the samples decreased linearly. On the other hand, hard reinforcement particles played a positive role in both hardness and wear properties and a 43.37 HB of hardness value and 0.197 m3/N.m × 10−12 specific wear rate was obtained for the sample containing 40 wt. %, MC. In addition, an increase in magnetic properties was observed in direct proportion to the amount of MC particles added, up to 31 Am2.kg−1 of saturation magnetization.

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“…The statistic data of electrical resistivity in Table 2 have clearly revealed that there is only a negligible difference between the plain solder and the FNSs nanoparticles reinforced composite solders. It has been reported by other researchers that the electrical resistivity of a composite material is largely influenced by the type, size, shape, volume fraction of the reinforcements [18][19][20][21]. According to the Matthiessen's rule, the total electrical resistivity of a material is comprised of three parts, namely, the impurity resistivity, the thermal resistivity and the deformation resistivity [22].…”

Section: Resultsmentioning

confidence: 99%

Effect of fullerene-C60&C70 on the microstructure and properties of 96.5Sn-3Ag-0.5Cu solder

Chen

Liu

et al. 2015

2015 IEEE 65th Electronic Components and Technology Conference (ECTC)

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In this study, fullerene nanoparticles (FNSs, a mixture of approximately 80%C60, 20%C70), by varying their weight fractions (0.05, 0.1 and 0.2wt. %) were successfully added into the SAC305 lead free solder to fabricate composite solders through the powder metallurgy processing route. As well as the retained ratios of fullerene reinforcements in the solder joints were firstly tested, the composite solders were also characterized in terms of their microstructure, melting points, electrical conductivity, wettability and mechanical properties.The retained ratio of FNSs reinforcements in the solder joints shows a considerable decrease with the increase of reflow cycles. After FNSs addition to the solder alloy, the Sn rich phase and IMC phases (Cu 6 Sn 5 and Ag 3 Sn) with a finer microstructure were observed in the solder matrix. With the increasing addition of fullerene, the composite solders showed an improvement in their wetting property but an insignificant change in their melting points and conductivity. The mechanical results indicated that the addition of 0.2wt. % fullerene can lead to 12.1% and 28.2% improvement in micro-hardness and shear strength respectively, when compared with that of the unreinforced solders. Furthermore, the FNSs doped composites exhibited better mechanical performance throughout the 360h aging period.These results obtained from this study proved that the addition of fullerene can improve not only the mechanical properties of the solder alloy, but also the wettability without any notable effect on the melting point and conductivity. Thus, these fullerene doped composite solders can be further developed as a potential material for microelectronics assembly and packaging industry.

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Effect of porosity and reinforcement content on the electrical conductivity of spray formed 2014-Al alloy + SiC_pcomposites

Cited by 12 publications

References 7 publications

Reinforcements at nanometer length scale and the electrical resistivity of lead-free solders

Reinforcements at nanometer length scale and the electrical resistivity of lead-free solders

Investigation of magnetite concentrate utilization as reinforcement in aluminum matrix composites

Effect of fullerene-C60&C70 on the microstructure and properties of 96.5Sn-3Ag-0.5Cu solder

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Effect of porosity and reinforcement content on the electrical conductivity of spray formed 2014-Al alloy + SiCpcomposites

Cited by 12 publications

References 7 publications

Reinforcements at nanometer length scale and the electrical resistivity of lead-free solders

Reinforcements at nanometer length scale and the electrical resistivity of lead-free solders

Investigation of magnetite concentrate utilization as reinforcement in aluminum matrix composites

Effect of fullerene-C60&C70 on the microstructure and properties of 96.5Sn-3Ag-0.5Cu solder

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Product

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Effect of porosity and reinforcement content on the electrical conductivity of spray formed 2014-Al alloy + SiC_pcomposites