Novel copper-impregnated carbon strip for sliding contact materials

Cui, Lihui; Luo, Ruiying; Wang, Lianyi; Luo, Haiwen; Deng, Chao

doi:10.1016/j.jallcom.2017.11.311

Cited by 25 publications

(15 citation statements)

References 26 publications

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“…In order to increase the wettability between the interfaces, the most preferred method is to alloy the copper. According to the literature, titanium is the most prominent as an alloying carbide forming element [34][35][36][37][38][39][40]. Apart from this, it has been observed that Cr and Si elements are also used [32,41,42].…”

Section: Addition Of Elements Into Coppermentioning

confidence: 99%

“…Another group, led by Lihui Cui [39], from Beihang University, also worked on C-C/Cu composites for sliding contacts. In this study, the researchers used carbon fiber 2.5D-braided preforms.…”

Section: Addition Of Elements Into Coppermentioning

confidence: 99%

“…Long [41] and short fibers [38,45] or continuous fibers [34] have been used in different studies. Moreover, these preforms were preferred to be knitted in some studies [34,35,51] and non-woven in others [37][38][39][40].…”

Section: Observed Mechanical and Physical Properties Of Cu/carbon Com...mentioning

confidence: 99%

“…C/C preforms are formed by stacking on more than one layer [39,41,45,51] and then compacted with CVI [38][39][40]45] and CVD [43,44]. The preforms are often pyrolized (P y C) thus changing the carbon structure in preforms and also affecting the resulting interface phases after the infiltration process [37].…”

Section: Observed Mechanical and Physical Properties Of Cu/carbon Com...mentioning

confidence: 99%

“…As can be observed from the Figure 4, the highest compressive strength belongs to Cu-2.5wt.% B/C composite at 382 MPa. [47]; b: [48]; c: [49]; d: [52]; e: [53]; f: [54]; g: [39]).…”

Section: Mechanical Propertiesmentioning

confidence: 99%

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Review of Recent Development in Copper/Carbon Composites Prepared by Infiltration Technique

Cantürk

Kováčik

2022

Energies

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The liquid metal infiltration of carbon preformed with copper and its alloys is already an established and well-known process. It is extensively used by the electronic industry to produce heat sinks of power electronics and electric contacts and sliding electric contacts. The advantage of the process is its ability to produce near net shape components with high volume fractions of carbon at a relatively low price. The process is carried out in a vacuum and with low applied pressure. However, a strong dependence on the temperature of infiltration and its precise control is significant for the sound final product. For certain pair carbon matrix–copper alloys, different results could be obtained according to the infiltration temperature. If the temperature is too low, the solidification may occur prior to complete infiltration (high final porosity). When the temperature is too high, undesirable reactions may occur at the fiber–matrix interface (e.g., corrosive carbides). Therefore, there are still a lot of scientific papers pushing this technology to new directions and over old limits. Publications inside scientific journals within this field deal with composite materials for sliding electrical contact and electrical contact materials, sealing materials, parts of brake disks, pantograph strips for high-speed railways, other electric and mechanical applications and even for wall surface shields in future fusion devices. The present paper reviews used carbon preforms, copper alloys, technological parameters, properties of prepared composites prepared via infiltration during the last 12 years. It can be stated that 1/3 of the papers were published within the last 3 years. Moreover, renewed interest in this low-cost technique could be expected within the next few years due to climate programs and increasing prices of the energy resources.

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Section: Addition Of Elements Into Coppermentioning

confidence: 99%

Section: Addition Of Elements Into Coppermentioning

confidence: 99%

Section: Observed Mechanical and Physical Properties Of Cu/carbon Com...mentioning

confidence: 99%

Section: Observed Mechanical and Physical Properties Of Cu/carbon Com...mentioning

confidence: 99%

“…As can be observed from the Figure 4, the highest compressive strength belongs to Cu-2.5wt.% B/C composite at 382 MPa. [47]; b: [48]; c: [49]; d: [52]; e: [53]; f: [54]; g: [39]).…”

Section: Mechanical Propertiesmentioning

confidence: 99%

See 3 more Smart Citations

Review of Recent Development in Copper/Carbon Composites Prepared by Infiltration Technique

Cantürk

Kováčik

2022

Energies

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Silver modification improving on the conductivity of graphene/copper composite: experimental and theoretical research

Luo

Dong³

et al. 2023

J Mater Sci: Mater Electron

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Pantograph–catenary electrical contact system of high-speed railways: recent progress, challenges, and outlooks

Dong

et al. 2022

Rail. Eng. Science

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As the unique power entrance, the pantograph–catenary electrical contact system maintains the efficiency and reliability of power transmission for the high-speed train. Along with the fast development of high-speed railways all over the world, some commercialized lines are built for covering the remote places under harsh environment, especially in China; these environmental elements including wind, sand, rain, thunder, ice and snow need to be considered during the design of the pantograph–catenary system. The pantograph–catenary system includes the pantograph, the contact wire and the interface—pantograph slide. As the key component, this pantograph slide plays a critical role in reliable power transmission under dynamic condition. The fundamental material characteristics of the pantograph slide and contact wire such as electrical conductivity, impact resistance, wear resistance, etc., directly determine the sliding electrical contact performance of the pantograph–catenary system; meanwhile, different detection methods of the pantograph–catenary system are crucial for the reliability of service and maintenance. In addition, the challenges brought from extreme operational conditions are discussed, taking the Sichuan–Tibet Railway currently under construction as a special example with the high-altitude climate. The outlook for developing the ultra-high-speed train equipped with the novel pantograph–catenary system which can address the harsher operational environment is also involved. This paper has provided a comprehensive review of the high-speed railway pantograph–catenary systems, including its progress, challenges, outlooks in the history and future.

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Novel copper-impregnated carbon strip for sliding contact materials

Cited by 25 publications

References 26 publications

Review of Recent Development in Copper/Carbon Composites Prepared by Infiltration Technique

Review of Recent Development in Copper/Carbon Composites Prepared by Infiltration Technique

Silver modification improving on the conductivity of graphene/copper composite: experimental and theoretical research

Pantograph–catenary electrical contact system of high-speed railways: recent progress, challenges, and outlooks

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