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相关概念视频

Structures of Solids02:22

Structures of Solids

Solids in which the atoms, ions, or molecules are arranged in a definite repeating pattern are known as crystalline solids. Metals and ionic compounds typically form ordered, crystalline solids. A crystalline solid has a precise melting temperature because each atom or molecule of the same type is held in place with the same forces or energy. Amorphous solids or non-crystalline solids (or, sometimes, glasses) which lack an ordered internal structure and are randomly arranged. Substances that...
Lattice Centering and Coordination Number02:33

Lattice Centering and Coordination Number

The structure of a crystalline solid, whether a metal or not, is best described by considering its simplest repeating unit, which is referred to as its unit cell. The unit cell consists of lattice points that represent the locations of atoms or ions. The entire structure then consists of this unit cell repeating in three dimensions. The three different types of unit cells present in the cubic lattice are illustrated in Figure 1.
Types of Unit Cells
Imagine taking a large number of identical...

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相关实验视频

Updated: Jul 7, 2026

Indirect Fabrication of Lattice Metals with Thin Sections Using Centrifugal Casting
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2D材料增强的多重自传感和可编程可部署的网格结构.

Aoun Hussnain1, Siddhesh Kulkarni1, Kamran A Khan2,3

  • 1Department of Aerospace Engineering, Khalifa University of Science and Technology, PO Box 127788, Abu Dhabi, United Arab Emirates.

Scientific reports
|August 30, 2024
PubMed
概括

研究人员开发了一种智能复合结构,可以监控部署和自我修复. 这种智能形状记忆聚合物复合材料 (iSMPC) 为可部署结构和软机器人提供了先进的功能.

关键词:
辅助性复合剂 辅助性复合剂可部署的结构可以部署.石墨烯是一种石墨烯.压电阻传感器传感器形状记忆的聚合物.

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Last Updated: Jul 7, 2026

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科学领域:

  • 材料科学 材料科学 材料科学
  • 复合材料 复合材料 复合材料
  • 智能结构是一个智能结构.

背景情况:

  • 能够恢复形状的智能和可编程的智能复合结构对于可部署结构和软机器人等应用至关重要.
  • 现有的形状记忆材料在监控和控制部署方面存在局限性.

研究的目的:

  • 开发一个可部署的结构,可以智能监控其部署,并为特定的部署模式进行编程.
  • 创建具有形状记忆,辅助性和传感性质的多功能复合材料.

主要方法:

  • 通过将智能织物嵌入基于聚氨的形状记忆聚合物矩阵中,制造智能辅助性结构 (A-iSMPC).
  • 描述A-iSMPC的热和压感应特性,形状记忆行为和机械增强.

主要成果:

  • A-iSMPC 呈现负波桑比率 -0.44,表明辅助性行为.
  • 实现了96%的形状回收率和88%的形状固定率.
  • 在形状编程和恢复过程中对温度和应变进行了有效的监测.

结论:

  • 开发的A-iSMPC是一种具有形状记忆,辅助学,热学和压电阻传感能力的多功能材料.
  • 智能织物增强增强了机械性能,并使自我监控成为可能.
  • 这种iSMPC对于需要智能和可部署结构的各种应用具有显著的潜力.