超越传统冷却:用于管理极端热流的先进微/纳米结构
Yuankun Zhang1, Huajie Li1, Yuhang Zhou1
1Centre for Omniscale Thermal Management and Comprehensive Energy Utilization (OTM-EU), School of Airspace Science and Engineering, Shandong University, Weihai, 264209, China.
Advanced materials (Deerfield Beach, Fla.)
|November 17, 2025
概括
微/纳米结构为高热流电子产品提供先进的热管理,提高性能和安全性. 本综述涵盖了它们的机制,应用以及电子热管理中的未来潜力.
科学领域:
- 材料科学 材料科学 材料科学
- 热力工程是热力工程中的一个.
- 纳米技术 纳米技术
背景情况:
- 越来越多的设备集成导致显著的热损失,影响电子设备的性能和安全.
- 先进的热管理解决方案对于高热流电子产品来说至关重要,以有效地散热热量.
- 微/纳米结构由于其性能和设计灵活性,对有针对性的散热非常有希望.
研究的目的:
- 系统地审查使用微/纳米结构的传热控制机制.
- 探索微/纳米结构在电子热管理中的当前和潜在应用.
- 总结设计和制造方法,挑战和未来的前景.
主要方法:
- 在多个尺度上对基本的传热机制进行系统的检查.
- 突出生物灵感和工程微型/纳米结构设计.
- 开发用于合热传递调制的新型微/纳米模式.
主要成果:
- 微/纳米结构使高效的热和水力动力超材料成为可能.
- 新型模式显著调节电子热管理中的传热过程.
- 现有设计和制造方法的优点和局限性的比较总结.
结论:
- 微/纳米结构在高性能电子产品中具有可靠和可持续的热管理的变革潜力.
- 需要对设计,制造和应用进行进一步的研究.
- 这些结构是电子热管理未来进步的关键.
相关概念视频
01:20Mechanisms of Heat Transfer II
4.2K
In convection, thermal energy is carried by the large-scale flow of matter. Ocean currents and large-scale atmospheric circulation, which result from the buoyancy of warm air and water, transfer hot air from the tropics toward the poles and cold air from the poles toward the tropics. The Earth’s rotation interacts with those flows, causing the observed eastward flow of air in the temperate zones. Convection dominates heat transfer by air, and the amount of available space for the airflow...
4.2K
01:14Mechanisms of Heat Transfer
1.6K
Heat transfer between the human body and its environment occurs through four main mechanisms: conduction, convection, radiation, and evaporation.
Conduction, accounting for approximately 3% of body heat loss at rest, is the process of exchanging heat between molecules of two materials in direct contact. This can result in both heat loss and gain. For instance, when the body is submerged in water, which conducts heat 20 times more effectively than air, it can either lose or gain significant...
Conduction, accounting for approximately 3% of body heat loss at rest, is the process of exchanging heat between molecules of two materials in direct contact. This can result in both heat loss and gain. For instance, when the body is submerged in water, which conducts heat 20 times more effectively than air, it can either lose or gain significant...
1.6K
01:14Mechanisms of Heat Transfer I
5.9K
Just as interesting as the effects of heat transfer on a system are the methods by which the heat transfer occur. Whenever there is a temperature difference, heat transfer occurs. It may occur rapidly, such as through a cooking pan, or slowly, such as through the walls of a picnic ice box. So many processes involve heat transfer that it is hard to imagine a situation where no heat transfer occurs. Yet, every heat transfer takes place by only three methods: conduction, convection, and radiation.
5.9K
01:19Mechanism of heat transfer
1.8K
Understanding heat transfer mechanisms is essential for understanding how our bodies maintain balance in different environmental conditions. When the environment is thermoneutral, the body is in a state of balance, neither using nor releasing energy to maintain its core temperature. However, when the environment is not thermoneutral, the body employs four heat transfer mechanisms to maintain homeostasis: conduction, convection, evaporation, and radiation. These mechanisms facilitate heat...
1.8K
01:09Thermal Stress
3.2K
If the temperature of an object is changed while it is prevented from expanding or contracting, the object is subjected to stress. The stress is compressive if the object expands in the absence of constraint and tensile if it contracts. This stress resulting from temperature change is known as thermal stress. It can be quite large and can cause damage. To avoid this stress, engineers may design components so they can expand and contract freely. For instance, on highways, gaps are deliberately...
3.2K
01:27Thermal expansion and Thermal stress: Problem Solving
2.1K
San Francisco's Golden Gate Bridge is exposed to temperatures ranging from -15 °C to 40 °C. At its coldest, the main span of the bridge is 1275 m long. Assuming that the bridge is made entirely of steel, what is the change in its length between these temperatures?
To solve the problem, first, identify the known and unknown quantities. The initial length (L) of the bridge is 1275 m, the coefficient of linear expansion (α) for steel is 12 x 10-6/°C, and the change in temperature (ΔT) is 55...
To solve the problem, first, identify the known and unknown quantities. The initial length (L) of the bridge is 1275 m, the coefficient of linear expansion (α) for steel is 12 x 10-6/°C, and the change in temperature (ΔT) is 55...
2.1K