Super-durable ultralong carbon nanotubes

doi:10.1126/science.aay5220

GSTDTAP > 气候变化

DOI	10.1126/science.aay5220
	Super-durable ultralong carbon nanotubes
	Yunxiang Bai; Hongjie Yue; Jin Wang; Boyuan Shen; Silei Sun; Shijun Wang; Haidong Wang; Xide Li; Zhiping Xu; Rufan Zhang; Fei Wei
	2020-08-28
发表期刊	Science
出版年	2020
英文摘要	Many high-strength materials can fail after repeated exposure to subcritical loading; therefore, understanding the causes of fatigue is key to extending the longevity of the material in use. Bai et al. used chemical vapor deposition to produce centimeter-long carbon nanotubes. They then decorated these nanotubes with titanium dioxide nanoparticles for optical visualization and studied them using noncontact acoustic resonance tests. The authors determined that fatigue lifetime is dependent on the formation of the first defects on straining and is higher at lower temperatures. Science , this issue p. [1104][1] Fatigue resistance is a key property of the service lifetime of structural materials. Carbon nanotubes (CNTs) are one of the strongest materials ever discovered, but measuring their fatigue resistance is a challenge because of their size and the lack of effective measurement methods for such small samples. We developed a noncontact acoustic resonance test system for investigating the fatigue behavior of centimeter-long individual CNTs. We found that CNTs have excellent fatigue resistance, which is dependent on temperature, and that the time to fatigue fracture of CNTs is dominated by the time to creation of the first defect. [1]: /lookup/doi/10.1126/science.aay5220
领域	气候变化 ; 资源环境
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引用统计
文献类型	期刊论文
条目标识符	http://119.78.100.173/C666/handle/2XK7JSWQ/293228
专题	气候变化资源环境科学
推荐引用方式 GB/T 7714	Yunxiang Bai,Hongjie Yue,Jin Wang,et al. Super-durable ultralong carbon nanotubes[J]. Science,2020.
APA	Yunxiang Bai.,Hongjie Yue.,Jin Wang.,Boyuan Shen.,Silei Sun.,...&Fei Wei.(2020).Super-durable ultralong carbon nanotubes.Science.
MLA	Yunxiang Bai,et al."Super-durable ultralong carbon nanotubes".Science (2020).