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科学家做出了在强度密度比上优于钻石的物质

来源:沪江 编辑:Kelly   可可英语APP下载 |  可可官方微信:ikekenet

Scientists have found a new way to structure carbon at the nanoscale, making a material that's superior to diamond on the strength-to-density ratio.

科学家发现了一种新的方法构造纳米级碳,做出了一种在强度密度比上优于钻石的物质。
While the tiny carbon lattice has been fabricated and tested in the lab, it's a very long way off practical use. But this new approach could help us build stronger and lighter materials in the future - which is something that's of great interest to industries such as aerospace and aviation.
虽然做出了这种微碳晶格,在实验室中进行了测试,但还不能用于实际应用。但这种新的方法能帮我们在未来构造出更坚固更轻的物质,航空航天等行业对此会非常感兴趣。
What we're talking about here is something known as a nanolattices - porous structures like the one in the image above that's made up of three-dimensional carbon struts and braces. Due to their unique structure, they're incredibly strong and lightweight.
我们讨论的是纳米晶格,这种多孔结构如上图所示,是由三维碳素支柱和支撑构成的。由于其结构独特,所以异常坚固轻便。
Usually these nanolattices are based around a cylindrical framework (they're called beam-nanolattices). But the team has now created plate-nanolattices, structures based around tiny plates.
通常这种纳米晶格是以圆柱形框架为基础的(我们称之为束纳米晶格)。但这个团队现在创造出了平板纳米晶格,是基于微型平板的结构。

科学家做出了在强度密度比上优于钻石的物质.jpg

This subtle shift may not sound like much, but the researchers say it can make a big difference when it comes to strength.

这种微妙的变化可能听起来没什么,但研究人员说这对强度有很大影响。
Based on early experiments and calculations, the plate approach promises a 639 percent increase in strength and a 522 percent increase in rigidity over the beam nanolattice approach.
基于早期的实验和计算,这种平板结构与束纳米晶格相比,强度会提高639%,硬度会提高522%。
"Scientists have predicted that nanolattices arranged in a plate-based design would be incredibly strong," says materials scientist Cameron Crook, from the University of California, Irvine (UCI).
加利福尼亚大学尔湾分校材料科学家Cameron Crook说:“科学家预测平板设计的纳米晶格会异常坚固。”
"But the difficulty in manufacturing structures this way meant that the theory was never proven, until we succeeded in doing it."
“但以这种方式制造结构的困难程度说明这一理论从未被证实过,我们得成功做出来才行。”

重点单词   查看全部解释    
lattice ['lætis]

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n. 格子,格状物,[物]点阵 v. 制做格子,使成格状

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approach [ə'prəutʃ]

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n. 接近; 途径,方法
v. 靠近,接近,动

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diamond ['daiəmənd]

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n. 钻石,像钻石的物质,菱形,纸牌的方块,棒球内场

 
subtle ['sʌtl]

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adj. 微妙的,敏感的,精细的,狡诈的,不明显的

 
framework ['freimwə:k]

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n. 结构,框架,参照标准,体系

 
porous ['pɔ:rəs]

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adj. 可渗透的,多孔的

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superior [su:'piəriə]

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n. 上级,高手,上标
adj. 上层的,上好

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shift [ʃift]

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n. 交换,变化,移动,接班者
v. 更替,移

 
beam [bi:m]

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n. 光线,(光线的)束,(横)梁,桁条
vt

 
rigidity [ri'dʒiditi]

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n. 硬,硬度,刻板

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