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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...
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三电基岩织品在超宽温度范围内有效运行.

Yingwen Li1,2, Yinben Guo1, Fan Fu2

  • 1School of Materials Science and Engineering, Shanghai University of Engineering Science, Shanghai, 201620, P. R. China.

Advanced materials (Deerfield Beach, Fla.)
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一种新的 triboelectric 基岩织品 (TBT) 从 -196 °C 到 520 °C 工作,克服了可穿戴能源设备的极端温度限制. 这种持久的纳米发电机在恶劣条件下保持了显著的电力输出,使其能够在各种环境中应用.

关键词:
巴萨尔特织品的织品能源采集 能源采集极端温度是指极端的温度.热电阻 热电阻 热电阻带电纳米发电机的 triboelectric 的使用.

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科学领域:

  • 材料科学 材料科学 材料科学
  • 收集能源 收集能源
  • 纳米技术纳米技术

背景情况:

  • 可穿戴的能源需求需要纳米发电机 (NG) 适用于极端环境.
  • 传统的NG在极端温度下扎着高质量的电力输出.
  • 玄武岩材料为稳健的NG开发提供了潜力.

研究的目的:

  • 开发一种具有超宽操作温度范围的 triboelectric 纳米发电机 (TENG).
  • 研究基岩基材料在极端热条件下的性能.
  • 为了证明TBT的可行性,在恶劣的环境中可靠地收集能量.

主要方法:

  • 使用玄武岩作为主要材料制造 triboelectric 玄武岩织品 (TBT).
  • 在 -196°C 到 520°C 的温度范围内测试 TBT 的电力输出.
  • 分析极端温度对TBT功率密度和电压保留的影响.

主要成果:

  • 该TBT表现出超宽的操作温度范围 (-196到520°C).
  • 功率密度增加了2.3倍,在100°C时达到740.6mW m−2,这是由于加强了接口极化.
  • 在520°C时,TBT保持了≈55%的输出,在196°C时保持了≥85%的电压.

结论:

  • 在极端温度下,TBT表现出卓越的热稳定性和电性能.
  • 这种材料是一个有希望的候选人可穿戴能源收获在多样化和充满挑战的环境.
  • TBT的弹性为高/低度,沙漠和太空中的应用提供了可能性.