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相关概念视频

Fiber Reinforced Concrete01:22

Fiber Reinforced Concrete

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Fiber-reinforced concrete significantly enhances the structural and nonstructural properties of traditional concrete by incorporating fibers like steel, glass, and polymers. These fibers, varying from natural ones such as sisal and cellulose to manufactured ones like polypropylene and Kevlar, are mixed into hydraulic cement with aggregates. Steel fibers, often preferred for their robustness, contribute to improved ductility, toughness, and post-cracking performance. The concrete is classified...
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Hooke's Law01:26

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Hooke's law, a pivotal principle in material science, establishes that the strain a material undergoes is directly proportional to the applied stress, defined by a factor called the modulus of elasticity or Young's modulus.
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相关实验视频

Updated: Oct 29, 2025

An Externally-Heated Diamond Anvil Cell for Synthesis and Single-Crystal Elasticity Determination of Ice-VII at High Pressure-Temperature Conditions
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An Externally-Heated Diamond Anvil Cell for Synthesis and Single-Crystal Elasticity Determination of Ice-VII at High Pressure-Temperature Conditions

Published on: June 18, 2020

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弹性冰的微纤维

Peizhen Xu1, Bowen Cui1, Yeqiang Bu2

  • 1State Key Laboratory of Modern Optical Instrumentation, College of Optical Science and Engineering, Zhejiang University, Hangzhou 310027, China.

Science (New York, N.Y.)
|July 10, 2021
PubMed
概括
此摘要是机器生成的。

单晶冰微纤维具有显著的弹性,曲率高达10.9%. 这一发现为微观冰物理学和技术开辟了新的途径.

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Fabrication of Superhydrophobic Metal Surfaces for Anti-Icing Applications
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相关实验视频

Last Updated: Oct 29, 2025

An Externally-Heated Diamond Anvil Cell for Synthesis and Single-Crystal Elasticity Determination of Ice-VII at High Pressure-Temperature Conditions
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An Externally-Heated Diamond Anvil Cell for Synthesis and Single-Crystal Elasticity Determination of Ice-VII at High Pressure-Temperature Conditions

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科学领域:

  • 材料科学
  • 物理
  • 纳米技术

背景情况:

  • 冰通常被认为是一种易碎的硬质材料.
  • 在微和纳米尺度上的冰的变形并未得到充分理解.

研究的目的:

  • 研究单晶冰微纤维的机械性能.
  • 探索这些新的冰结构的潜在应用.

主要方法:

  • 制造从800nm到10μm直径的冰微纤维.
  • 低温机械测试以评估弹性和延展极限.
  • 使用显微镜观察压力诱导的相变.

主要成果:

  • 冰的微纤维具有很高的弹性,可逆曲率高达10.9%.
  • 在曲的IMF中观察到由压力诱导的从冰I到冰II的相位过渡.
  • 高光学质量,可实现低损耗的光学波导和低声画廊模式共振.

结论:

  • 单晶IMF具有非常高的弹性,接近理论极限.
  • 观察到的相位过渡突出显示了极端微观变形下的冰的独特行为.
  • 灵活的IMF为微/纳米冰物理研究和技术创新提供了新平台.