液体金属架构的热管理材料:空隙工程,同时实现高热导电性和阻燃性
Jeongmin Jo1,2, Yongchan Jang1, Ji-Hun Seo2
1Electronic Convergence Materials & Device Research Center, Korea Electronics Technology Institute, Seongnam-si, Gyeonggi-do, Republic of Korea.
Small (Weinheim an der Bergstrasse, Germany)
|January 25, 2026
概括
这项研究引入了复合材料的新型空隙工程技术,显著提高了导热率和阻燃性. 这种方法通过创建多功能填充器和消除内部空隙来提高先进电子产品的性能.
科学领域:
- 材料科学 材料科学 材料科学
- 聚合物科学 聚合物科学
- 纳米技术纳米技术
背景情况:
- 热管理材料需要高热导电性和阻燃性,用于高性能电子产品.
- 由于材料要求相互矛盾,同时实现这两种特性是一个巨大的挑战.
研究的目的:
- 开发具有增强导热性和阻燃性的先进热管理材料.
- 通过创新的空洞工程来解决当前用于高功率电子应用的材料的局限性.
主要方法:
- 使用机械化学封装在复合材料中的液体金属架构空洞工程.
- 创建多功能化 (AlN) 核心外填充剂,使用优性- (EGaIn).
- 系统的接口微结构控制,以消除加工引起的空隙,并促进热网络的形成.
主要成果:
- 在50电量%的负载下,在平面内实现了4.60W m-1 K-1 的特殊导热率,在平面外达到5.27W m-1 K-1 .
- 与原始复合材料相比,体现了2.19至2.69倍的热导率提升.
- 空隙消除与优越的热传输,机械完整性和增强的阻燃性相关,减少了总热量释放的13.39%.
结论:
- 通过液体金属架构的核心填充器系统的空隙工程为高性能热管理材料提供了实用解决方案.
- 这种方法成功地平衡了高导热率和阻燃性,满足了先进电子设备的安全性和性能要求.
- 开发的材料为下一代电子系统提供了途径,这些电子系统需要卓越的热管理和消防安全.
相关概念视频
Thermal 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
Thermal Strain
2.8K
Thermal strain is a concept that arises when we consider how temperature changes affect structures. Unlike the conventional assumption that structures remain constant under load, real-world scenarios often involve temperature fluctuations that can significantly impact these structures. Consider a homogeneous rod with a uniform cross-section resting freely on a flat horizontal surface. If the rod's temperature increases, the rod elongates. This elongation is proportional to the temperature...
2.8K
Thermal Expansion
5.6K
The expansion of alcohol in a thermometer is one of many commonly encountered examples of thermal expansion, which is the change in size or volume of a given system as its temperature changes. The most visible example is the expansion of hot air. When air is heated, it expands and becomes less dense than the surrounding air, which then exerts an upward force on the hot air to, for example, make steam and smoke rise, and hot air balloons float. The same behavior happens in all liquids and gases,...
5.6K
Thermal Stress
3.3K
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...
3.3K
Temperature and Thermal Equilibrium
9.2K
Heat and temperature are essential concepts for everyone every day. The study of heat and temperature is part of an area of physics known as thermodynamics. It is not always easy to distinguish heat and temperature.
The concept of temperature has evolved from the common concepts of hot and cold. The scientific definition of temperature explains more than just our sense of hot and cold. Temperature is operationally defined as the quantity measured with a thermometer. Furthermore, temperature is...
The concept of temperature has evolved from the common concepts of hot and cold. The scientific definition of temperature explains more than just our sense of hot and cold. Temperature is operationally defined as the quantity measured with a thermometer. Furthermore, temperature is...
9.2K
Alkali Metals
24.3K
Group 1 elements are soft and shiny metallic solids. They are malleable, ductile, and good conductors of heat and electricity. The melting points of the alkali metals are unusually low for metals and decrease going down the group, while the density increases going down the group with the exception of potassium (Table 1).
Table 1: Properties of the alkali metals
Table 1: Properties of the alkali metals
24.3K


