工业石墨烯涂层低压铜线的电力分配的电力
Neeraj Mishra1,2, Ylea Vlamidis1,2, Leonardo Martini1,2
1Center for Nanotechnology Innovation@NEST, Istituto Italiano di Tecnologia, Piazza San Silvestro, 12, 56126 Pisa, Italy.
ACS applied engineering materials
|August 3, 2023
概括
石墨烯涂层提高了铜线的导电性和抗氧化能力. 这项利用化学蒸汽沉积 (CVD) 的创新,可以通过减少线径来节省成本,并支持工业规模的生产.
科学领域:
- 材料科学 材料科学 材料科学
- 电气工程 电气工程
- 纳米技术 纳米技术
背景情况:
- 铜 (Cu) 是建筑布线中的主要电导体.
- 现有的铜线在导电性和抗氧化性方面存在局限性.
- 低压 (LV) 应用需要高效和耐用的电导体.
研究的目的:
- 为了研究铜线上的石墨烯涂层在LV应用中的有效性.
- 评估石墨烯涂层对电导率和氧化电阻的影响.
- 展示一种可扩展的工业方法,用于生产涂上石墨烯的铜线.
主要方法:
- 使用化学蒸汽沉积 (CVD) 用石墨烯涂覆铜线 (与LV应用相关).
- 使用环境压力卷对卷 (R2R) CVD进行可扩展的线内生产.
- 采用光谱和衍射分析来研究材料特性.
- 对老旧电线进行电气测试,以评估长期性能.
主要成果:
- 涂上石墨烯的铜线表现出更好的氧化阻力.
- 电导率在涂层后立即增加了高达1%,并在24个月后增加了3%.
- 分析表明,涂层条件改变了铜的结晶性,提高了导电性.
- 石墨烯涂层对于随着时间的推移保持更好的电性能至关重要.
结论:
- 石墨烯涂层提供了一种可行的方法来提高电气应用中的铜线性能.
- CVD过程,特别是R2R,为生产提供了可扩展和工业兼容的路线.
- 涂上石墨烯的铜线可以通过减少材料使用来节省潜在的成本.
相关概念视频
01:22Magnetic Force On Current-Carrying Wires: Example
1.5K
In a magnetic field, moving charges encounter a force. If a wire contains these moving charges, i.e., if the wire is carrying a current, then a force acts on the wire as well. Consider a pair of flexible leads holding a wire that is 40 cm long and 10 g in weight in a horizontal position. The wire is placed in a constant magnetic field of 0.40 T, as shown in Figure 1(a). Determine the magnitude and direction of the current flowing in the wire needed to remove the tension in the supporting leads.
1.5K
01:23Transmission Line Design Considerations
166
Aluminum has become the material of choice for overhead transmission lines, surpassing copper due to its abundance and cost-effectiveness. The most prevalent type is the aluminum conductor, steel-reinforced (ACSR), which combines aluminum strands around a steel core. Other variants include all-aluminum conductors (AAC), all-aluminum alloy conductors (AAAC), aluminum conductor alloy-reinforced (ACAR), and aluminum-clad steel conductors. Advanced designs, such as aluminum conductors with steel...
166
01:17Power Distribution in Three-phase and Single Phase Circuits
346
Power distribution within electrical circuits is a foundational aspect of residential and industrial energy systems. While single-phase power is common in residential settings, three-phase power is the standard for industrial environments with heavy machinery. Each system is different and has advantages, and it's crucial to understand the underlying principles of power distribution and material efficiency.
Single-Phase Power Distribution:
Single-phase circuits are typical in household...
Single-Phase Power Distribution:
Single-phase circuits are typical in household...
346
01:28Types Of Superconductors
1.0K
A superconductor is a substance that offers zero resistance to the electric current when it drops below a critical temperature. Zero resistance is not the only interesting phenomenon as materials reach their transition temperatures. A second effect is the exclusion of magnetic fields. This is known as the Meissner effect. A light, permanent magnet placed over a superconducting sample will levitate in a stable position above the superconductor. High-speed trains that levitate on strong...
1.0K
01:25Resistance and Conductance
102
A conductor's DC resistance at a given temperature is influenced by its resistivity, length, and cross-sectional area. Resistivity is an inherent property of the conductor material, with annealed copper serving as the international standard for measurement. For instance, the resistivity of hard-drawn aluminum at 20 degrees Celsius is 61% of the standard conductivity of annealed copper.
Various factors impact the resistance of a conductor. Spiraling in stranded conductors increases their...
Various factors impact the resistance of a conductor. Spiraling in stranded conductors increases their...
102
01:28Magnetic Field Due To A Thin Straight Wire
4.9K
Consider an infinitely long straight wire carrying a current I. The magnetic field at point P at a distance a from the origin can be calculated using the Biot-Savart law.
4.9K