Tag:材料

Sep 4, 2014

基于Titania的材料占超导体的新绝缘体

Research shows that a type of modified titania, or titanium dioxide, holds promise as an electrical insulator for superconducting magnets, allowing heat to dissipate while preserving the electrical paths along which current流动。

2014年5月6日

是什么让蜘蛛侠的网络如此强大？

Spider-Man’s webs are pretty impressive, capable of supporting Spidey’s weight as he swings through New York, trapping super-villains and even suspending cars above city streets. What are they made of? And how are they made? Spider webs are notoriously strong, with spider silk reported as having a tensile strength of up to 1.75 gigapascals(GPa),…

2014年4月15日

为什么美国的盾牌基本上是一个明星闪烁的超级电容器

Captain America’s shield is famous for absorbing tremendous amounts of kinetic energy, from an artillery shell to a punch from the Hulk – keeping Cap not only safe, but on his feet. What’s going on here? It’s tough to explain how the shield works, in part because it behaves differently under different circumstances. Sometimes这…

Jan 22, 2014

为什么a New Catalyst for Hydrogen Production May Be a Big Deal

A research team led by Linyou Cao at NC State has shown that a one-atom thick film of molybdenum sulfide (MoS2 ) may work as an effective catalyst for creating hydrogen. Hydrogen holds great promise as an energy source, but the production of hydrogen from water electrolysis – freeing hydrogen from water with electricity –currently…

2013年12月2日

How Changing the Way We Study Gold Could Boost Communication Tech

Under the right circumstances, pushing on nothing is harder than pushing on something – at least when that “something” is gold. That’s the finding from a new materials science paper, and it’s a finding that could expedite the development of new wireless communication technologies. The Problem At issue are ohmic radio frequency microelectricalmechanical systems开关......

Sep 17, 2013

Smaller than Small: Why We Measure the Space between Atoms

编者注：这是NC州材料科学与工程副教授Jacob Jace jones的客座帖子。我们研究了令人难以置信的小东西的运动。小小的小？思考小于“纳米”。思考小于原子。我们测量原子位置的无限小的偏移到电气forces.…

Jul 10, 2013

金刚狼的爪子和金属合金的未来（Snikt！）

The metal that makes Wolverine’s claws virtually indestructible may be a reality sooner than you think. If you know anything about the superhero Wolverine, you know that he has both retractable claws and a mutant power that allows him to heal from virtually any injury. In the comics, a Canadian government project called WeaponX…

May 13, 2013

Iron Man, 3-D Printing and the Responsibility of Power

如果你已经看到了钢铁侠3，你知道 - 扰流器警报!!!!- 亿万富翁发明家Tony Stark揭示了数十款专业的钢铁款。如同诉讼是奇妙的是，技术剧烈的可能用来使它们从现实中取消 - 也不是这样的大问题technology…

Apr 24, 2013

钢铁侠，逆向工程与材料科学的未来

Iron Man 3 isn’t out yet, but the first two movies (and decades of Iron Man comics) raise some interesting questions about how scientists can create and utilize new materials – like the energy source for Iron Man’s suit. For those who have been shut off from pop culture, here’s a recap of thefirst…

Mar 18, 2013

The Heat Is On to Understand Thermal Transport between Materials

Editor’s Note: This is a guest post by Mark Losego, a research assistant professor of chemical and biomolecular engineering at NC State. Losego recently co-authored a News and Views article about nanoscale heat flow in Nature Materials with David Cahill of the University of Illinois. The basics of heat flow have long been overlooked, butnow,…

2013年2月15日

Thor的锤子不是那么重（但它科学上有趣）

在2月初，天体物理学家尼尔·DegraSe Tyson在Twitter上表示，超级英雄雷切（AKA Mjolnir）“的重量与300亿只大象一样多。”新闻网点纠正了这一点，新闻很快在线流通。可悲的是，泰森错了。泰森的推理是基于Mjolnir被“制造的想法”of…

Jan 28, 2013

为什么塑料不像洗碗机中的玻璃一样轻松干燥？

一个抽象读者最近发给我这个问题：“为什么塑料在洗碗机中干燥？或者为什么它不会像玻璃一样快速/容易地干燥？这促使我完全坚果。“好问题！这种现象也推动了我的坚果。答案似乎与能量数量有很大关系（以表格为单位）of…

Nov 26, 2012

规模很重要当减少NiO Nanoparticles

New research finds that size plays a major role in how nanoscale nickel oxide (NiO) shells behave when being reduced to solid nickel nanoparticles. “This advances our fundamental understanding of how the structures of nanoparticles can be changed through chemical reactions, which has potential applications in nanofabrication and catalysis,” says Joe Tracy, a materials科学家…

Nov 5, 2012

Vote for This! ‘Self-Folding Origami’ is Finalist in SciVis Contest

我认为观察一张二维（2-D）塑料折叠成三维（3-D）物体有些惊人。国家科学基金会（NSF）和科学显然同意，在国际科学与工程可视化挑战（SCIVIS）中选择了一个关于这种自折叠材料研究的视频（见上文）。为什么would…

Sep 24, 2012

新的研究结果与12,900年前的影响事件理论一致

New research findings published in the Proceedings of the National Academy of Sciences (PNAS) are consistent with a controversial theory that an extraterrestrial body – such as a comet – impacted the Earth approximately 12,900 years ago, possibly contributing to the significant climatic and ecological changes that date to that time period. The paperincludes…