Jove
Visualize
联系我们
JoVE
x logofacebook logolinkedin logoyoutube logo
关于 JoVE
概览领导团队博客JoVE 帮助中心
作者
出版流程编辑委员会范围与政策同行评审常见问题投稿
图书馆员
用户评价订阅访问资源图书馆顾问委员会常见问题
研究
JoVE JournalMethods CollectionsJoVE Encyclopedia of Experiments存档
教育
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab Manual教师资源中心教师网站
使用条款与条件
隐私政策
政策

相关概念视频

Thermal expansion and Thermal stress: Problem Solving01:27

Thermal expansion and Thermal stress: Problem Solving

1.1K
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...
1.1K
Yield Criteria for Ductile Materials under Plane Stress01:25

Yield Criteria for Ductile Materials under Plane Stress

158
In designing structural elements and machine parts using ductile materials, it is crucial to ensure that these components withstand applied stresses without yielding. Yielding is initially determined through a tensile test, which evaluates the material's response to uniaxial stress. However, tensile stress is insufficient when components face biaxial or plane stress conditions This condition requires advanced criteria to predict failure.
The Maximum Shearing Stress Criterion, also known as...
158
Thermal Stress01:09

Thermal Stress

2.4K
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...
2.4K
Bending of Members Made of Several Materials01:08

Bending of Members Made of Several Materials

147
In analyzing a structural member composed of two different materials with identical cross-sectional areas, it is crucial to understand how their distinct elastic properties affect the member's response under load. The analysis involves assessing stress and strain distributions using the transformed section concept, which accounts for variations in material properties.
Hooke's Law determines stress in each material, stating that stress is proportional to strain but varies due to each...
147

您也可能阅读

相关文章

通过共同作者、期刊和引用图与本文相关的文章。

排序
Same author

The H3K4 methyltransferase KMT2D is an essential cofactor for GATA1 at erythroid gene enhancers.

Nature communications·2026
Same author

Striatal functional connectivity alterations in mild cognitive impairment subtypes defined by CSF A/T biomarkers.

Frontiers in aging neuroscience·2026
Same author

Emerging roles of Notch signaling in the tumor microenvironment of digestive system cancers.

Frontiers in molecular biosciences·2026
Same author

Repetitive Transcranial Magnetic Stimulation for Major Depressive Disorder: A Systematic Review and Network Meta-Analysis.

Journal of evidence-based medicine·2026
Same author

Advances in research on RNA methylation and its role in the immune microenvironment of gastrointestinal tumors.

Frontiers in cell and developmental biology·2026
Same author

Impact of Functional Group Configuration in Isomeric Additives on Device Performance of Quasi-2D Perovskite Solar Cells.

The journal of physical chemistry letters·2026

相关实验视频

Updated: Jun 19, 2025

Chemical Synthesis of Porous Barium Titanate Thin Film and Thermal Stabilization of Ferroelectric Phase by Porosity-Induced Strain
08:00

Chemical Synthesis of Porous Barium Titanate Thin Film and Thermal Stabilization of Ferroelectric Phase by Porosity-Induced Strain

Published on: March 27, 2018

11.0K

基于BN的高度定向的TIM具有高透平面导热率和低压缩模量.

Rongjie Yang1,2, Yandong Wang1, Zhenbang Zhang1

  • 1Key Laboratory of Advanced Marine Materials, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, China. xuechen@nimte.ac.cn.

Materials horizons
|July 23, 2024
PubMed
概括

研究人员开发了先进的化 (BN) 热接口材料 (TIM),具有增强的导热率和低压缩模量,用于有效冷却电子设备. 这些新的BN-TIM超越了商业选择,改善了散热.

更多相关视频

Negative Additive Manufacturing of Complex Shaped Boron Carbides
06:45

Negative Additive Manufacturing of Complex Shaped Boron Carbides

Published on: September 18, 2018

8.6K
Fabrication of Low Temperature Carbon Nanotube Vertical Interconnects Compatible with Semiconductor Technology
09:20

Fabrication of Low Temperature Carbon Nanotube Vertical Interconnects Compatible with Semiconductor Technology

Published on: December 7, 2015

7.7K

相关实验视频

Last Updated: Jun 19, 2025

Chemical Synthesis of Porous Barium Titanate Thin Film and Thermal Stabilization of Ferroelectric Phase by Porosity-Induced Strain
08:00

Chemical Synthesis of Porous Barium Titanate Thin Film and Thermal Stabilization of Ferroelectric Phase by Porosity-Induced Strain

Published on: March 27, 2018

11.0K
Negative Additive Manufacturing of Complex Shaped Boron Carbides
06:45

Negative Additive Manufacturing of Complex Shaped Boron Carbides

Published on: September 18, 2018

8.6K
Fabrication of Low Temperature Carbon Nanotube Vertical Interconnects Compatible with Semiconductor Technology
09:20

Fabrication of Low Temperature Carbon Nanotube Vertical Interconnects Compatible with Semiconductor Technology

Published on: December 7, 2015

7.7K

科学领域:

  • 材料科学与工程 材料科学与工程
  • 热管理 热管理
  • 纳米材料是一种纳米材料.

背景情况:

  • 有效的热管理对于电子设备至关重要,需要具有高导热率和低压缩模量的绝缘热接口材料 (TIM).
  • 化 (BN) 是一个有前途的材料,但现有的BN复合材料在导热性,压缩模量和大规模生产方面存在局限性.
  • 以前基于BN的复合材料显示热导率低于10W m-1 K-1和高压缩模量,阻碍了广泛应用.

研究的目的:

  • 开发一种基于化 (BN) 的新型热接口材料 (TIM),具有卓越的透平面导热率,低热阻和最小的压缩模量.
  • 克服现有的BN复合材料在热性能,机械性能和大规模生产方面的局限性.
  • 与商业替代品相比,展示开发的BN-TIM的增强散热能力.

主要方法:

  • 使用低分子量聚甲基 (PDMS) 和大尺寸BN作为基础材料.
  • 采用一台滚动固化集成装置,用于连续制备大尺寸,高粘度的BN薄膜.
  • 实施了堆叠,冷压和垂直切割技术,以制造最终的基于BN的TIM.

主要成果:

  • 实现了一种基于BN的新型TIM,通过平面导热率高达12.11 W m-1 K-1.1.
  • 开发的TIM表现出55kPa的非常低的压缩模量和0.16°C in2 W-1.1的有效热阻.
  • 证明了优越的散热:与40W cm−2加热功率密度的商业TIM相比,稳定状态温度低7°C.

结论:

  • 开发的基于BN的TIM提供了前所未有的导热率和低压缩模量,解决了热管理中的关键挑战.
  • 连续制备方法促进了大规模生产,为更广泛的工业采用铺平了道路.
  • 这一进步为高性能绝缘TIM开发和在电子热管理中的广泛应用提供了宝贵的见解.