科学家发明有弹性的超强碳材料
文章来源:未知 文章作者:enread 发布时间:2017-06-11 07:28 字体: [ ]  进入论坛
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Scientists have developed a form of ultrastrong, lightweight carbon that is hard as a diamond yet elastic1 like rubber and electrically conductive.
 
科学家发明了一种超强轻型碳,这种碳像钻石一样坚硬却有橡胶一样的弹性并可以导电。
 
"In simple terms, the material combines the best properties of graphitic- and diamond-like forms of carbon," study co-lead author Zhisheng Zhao, professor at Yanshan University, China, said in an email to Xinhua.
 
"This combination of properties is useful for many potential applications, such as military armor and aerospace2."
 
The findings were published this week by the U.S. journal Science Advances.
 
Carbon is an element of seemingly infinite possibilities. This is because it has the flexibility3 to form different types of chemical bonds, which allows it to exhibit a variety of fascinating structures.
 
According to Zhao, pressure is an effective tool to control this chemical bonding and induce so-called phase transformations4.
 
For example, under high-pressure conditions, soft graphite transforms into diamond, the hardest material known.
 
In the new study, scientists pressurized and heated a structurally5 disordered form of carbon called glassy carbon to create the new form of carbon.
 
"The process is similar to converting graphite into diamond, however, in our new approach, the temperature used is not high enough to produce diamond," Zhao said.


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1 elastic Tjbzq     
n.橡皮圈,松紧带;adj.有弹性的;灵活的
参考例句:
  • Rubber is an elastic material.橡胶是一种弹性材料。
  • These regulations are elastic.这些规定是有弹性的。
2 aerospace CK2yf     
adj.航空的,宇宙航行的
参考例句:
  • The world's entire aerospace industry is feeling the chill winds of recession.全世界的航空航天工业都感受到了经济衰退的寒意。
  • Edward Murphy was an aerospace engineer for the US Army.爱德华·墨菲是一名美军的航宇工程师。
3 flexibility vjPxb     
n.柔韧性,弹性,(光的)折射性,灵活性
参考例句:
  • Her great strength lies in her flexibility.她的优势在于她灵活变通。
  • The flexibility of a man's muscles will lessen as he becomes old.人老了肌肉的柔韧性将降低。
4 transformations dfc3424f78998e0e9ce8980c12f60650     
n.变化( transformation的名词复数 );转换;转换;变换
参考例句:
  • Energy transformations go on constantly, all about us. 在我们周围,能量始终在不停地转换着。 来自辞典例句
  • On the average, such transformations balance out. 平均起来,这种转化可以互相抵消。 来自辞典例句
5 structurally b9ab462aabf667bfba00ea360ed6c929     
在结构上
参考例句:
  • The house roof was (structurally) unsound. 这屋顶(结构)不牢固。
  • Pinhole on shot-hole damage is never structurally significant. 针孔和蛀洞所造成的危害对结构的影响不大。
TAG标签: carbon rubber diamond
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