高热导电性钻石铜复合材料通过热压制与涂层界面层优化
Qiang Wang1,2, Zhijie Ye3, Lei Liu1
1School of Aeronautics, Chongqing Jiaotong University, Chongqing 400074, China.
Materials (Basel, Switzerland)
|August 28, 2025
概括
研究人员为电子热管理增强了钻石铜复合材料. 间层通过热压烧结提高了粘合性和导热性至640W/m·K,对于含金量低于50%的复合材料来说,这是最高的.
科学领域:
- 材料科学
- 纳米技术
- 热工程
背景情况:
- 钻石铜复合材料为电子热管理提供卓越的导热性.
- 热压烧结是一种可行的制造方法,但复合材料的导热性需要改进.
研究的目的:
- 通过热压烧结制造的钻石铜复合材料的热导率提高.
- 研究接面层在改善接面粘合和热性能方面的作用.
主要方法:
- 磁铁喷射的在钻石颗粒.
- 钻石铜复合材料的热压烧结.
- 使用声学不匹配模型 (AMM) 和扩散不匹配模型 (DMM) 分析接口结构和热性质.
主要成果:
- 在化过程中转化为W2C和WC,加强了钻石-铜接口.
- 一种含有50%钻石的复合材料和特定的W/WC/W2C接口涂层实现了640W/m·K的导热率.
- 这代表了热压烧结复合材料的最高导热率,其含量低于50%的钻石.
结论:
- 优化的钻石/W2C/WC/W2C/Cu接口显著提高了导热性.
- 这些复合材料对高功率电子冷却和热管理具有前景.
- 这项研究为先进的电子设备提供了高效的散热解决方案.
更多相关视频
相关概念视频
Mechanism of heat transfer
2.2K
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...
2.2K
Mechanisms of Heat Transfer I
5.6K
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.
5.6K
Mechanisms of Heat Transfer II
4.3K
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...
4.3K
Mechanisms of Heat Transfer
1.8K
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...
1.8K


