High-strength, high-conductivity copper-steel composite

Zhou, R.; Embury, J.D.; Wood, Jeffrey; Smith, Jessi L.

doi:10.1016/s1044-5803(96)00179-9

Cited by 14 publications

(5 citation statements)

References 12 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Due to the trade-off between strength and conductivity, various methods have been reported to fabricate high-strength and high-conductivity alloys and composites. [1][2][3][4][5] However, as they are mainly composed of metals like iron and copper, these conductors are not suited for complex systems in the fields of, for example, aerospace and automotive, where a high strength-to-weight ratio is of importance. In order to realize these properties, a promising way is to give lightweight and strong materials the ability to efficiently conduct an electric current.…”

Section: Introductionmentioning

confidence: 99%

Continuous electrodeposition for lightweight, highly conducting and strong carbon nanotube-copper composite fibers

et al. 2011

View full text Add to dashboard Cite

Carbon nanotube (CNT) fiber is a promising candidate for lightweight cables. The introduction of metal particles on a CNT fiber can effectively improve its electrical conductivity. However, the decrease in strength is observed in CNT-metal composite fibers. Here we demonstrate a continuous process, which combines fiber spinning, CNT anodization and metal deposition, to fabricate lightweight and high-strength CNT-Cu fibers with metal-like conductivities. The composite fiber with anodized CNTs exhibits a conductivity of 4.08 × 10(4)-1.84 × 10(5) S cm(-1) and a mass density of 1.87-3.08 g cm(-3), as the Cu thickness is changed from 1 to 3 μm. It can be 600-811 MPa in strength, as strong as the un-anodized pure CNT fiber (656 MPa). We also find that during the tensile tests there are slips between the inner CNTs and the outer Cu layer, leading to the drops in electrical conductivity. Therefore, there is an effective fiber strength before which the Cu layer is robust. Due to the improved interfacial bonding between the Cu layer and the anodized CNT surfaces, such effective strength is still high, up to 490-570 MPa.

show abstract

Section: Introductionmentioning

confidence: 99%

Continuous electrodeposition for lightweight, highly conducting and strong carbon nanotube-copper composite fibers

et al. 2011

View full text Add to dashboard Cite

show abstract

“…Some previous research has utilized macroscopic composites based on copper and stainless steels [9]. It is also possible to develop strengths up to 1.6 Gpa using macroscopic composites of copper and eutectic steel [10]. To date neither the selection of the strengthening component or the hardening phase, e.g.…”

Section: Macroscopic Compositesmentioning

confidence: 99%

A Survey of Processing Methods for High Strength-High Conductivity Wires for High Field Magnet Applications

Embury

Han

2004

Megagauss Magnetic Field Generation, Its Application to Science and Ultra-High Pulsed-Power Technology

View full text Add to dashboard Cite

show abstract

“…However, high temperatures would also accelerate the dissolution of Fe in the molten copper. The increase of Fe content in copper would affect the copper conductivity seriously [21,22], and this is why the casting compound process of copper-steel cannot continue to develop.…”

Section: Introductionmentioning

confidence: 99%

Study on the Bonding Mechanism of Copper-Low Carbon Steel for Casting Compounding Process

Zhang

et al. 2021

Metals

View full text Add to dashboard Cite

The casting compounding process for copper-steel composite material has broad prospects of application, but due to the lack of supporting theories (especially the bonding mechanism of copper-steel at high temperatures), it is developing slowly. In this research, copper-steel composite materials for different casting temperatures have been prepared by the casting compound process. The results show that, for the casting compound process, the stable copper-steel transition layer can be formed in a short time, and the bonding of copper and low carbon steel is the result of both the diffusion of Cu in low carbon steel and the dissolution of Fe in molten copper. The diffusion coefficient of Cu in the low carbon steel is mainly concentrated in the range of 4.0 × 10−15–8.0 × 10−14 m2/s. However, for casting compound process of copper-steel, as the temperature rises the thickness of the copper-steel transition layer gradually decreases, while the Fe content in the copper layer gradually increases. At the same time, the analysis of the glow discharge results shows that, during the solid-liquid composite process of copper-steel, the element C in steel has a great influence. As the temperature rises, the segregation of C intensifies seriously; the peak of the C content moves toward the copper side and its value is gradually increases. The segregation of C would reduce the melting point of the steel and cause irregular fluctuations of the diffusion of Cu in low carbon steel. Therefore, a relatively lower molten copper temperature is more conducive to the preparation of copper-steel composite materials.

show abstract

High-strength, high-conductivity copper-steel composite

Cited by 14 publications

References 12 publications

Continuous electrodeposition for lightweight, highly conducting and strong carbon nanotube-copper composite fibers

Continuous electrodeposition for lightweight, highly conducting and strong carbon nanotube-copper composite fibers

A Survey of Processing Methods for High Strength-High Conductivity Wires for High Field Magnet Applications

Study on the Bonding Mechanism of Copper-Low Carbon Steel for Casting Compounding Process

Contact Info

Product

Resources

About