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科學家設計出比鑽石更硬的物質

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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.
科學家發現了一種新的方法構造納米級碳,做出了一種在強度密度比上優於鑽石的物質。
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.
雖然做出了這種微碳晶格,在實驗室中進行了測試,但還不能用於實際應用。但這種新的方法能幫我們在未來構造出更堅固更輕的物質,航空航天等行業對此會非常感興趣

科學家設計出比鑽石更硬的物質

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.
我們討論的是納米晶格,這種多孔結構如上圖所示,是由三維碳素支柱和支撐構成的。由於其結構獨特,所以異常堅固輕便。
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.
通常這種納米晶格是以圓柱形框架爲基礎的(我們稱之爲束納米晶格)。但這個團隊現在創造出了平板納米晶格,是基於微型平板的結構。
This subtle shift may not sound like much, but the researchers say it can make a big difference when it comes to strength.
這種微妙的變化可能聽起來沒什麼,但研究人員說這對強度有很大影響。
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.
基於早期的實驗和計算,這種平板結構與束納米晶格相比,強度會提高639%,硬度會提高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).
加利福尼亞大學爾灣分校材料科學家Cameron Crook說:“科學家預測平板設計的納米晶格會異常堅固。”
"But the difficulty in manufacturing structures this way meant that the theory was never proven, until we succeeded in doing it."
“但以這種方式製造結構的困難程度說明這一理論從未被證實過,我們得成功做出來才行。”