DailyTech - New Carbon Nanotube Behavior Discovered

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Science New Carbon Nanotube Behavior Discovered
Kristopher Kubicki (Blog) - January 22, 2006 2:10 PM

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7 comment(s) - last by Proton.. on Jan 23 at 12:56 AM

By heating nanotubes to 2,000 degrees Celsius, scientists can manufacture carbon nanotubes that are significantly stronger than the original form

NanoTechWire is reporting about a recently published paper by three scientists who claim to have made an astonishing discovery for carbon nanotubes. Using their new manufacturing method, a typical carbon nanotube can be stretched from 24nm to 92nm. The implication is that devices using nanotubes, particularly any sort of structural device, can withstand much stronger loads. Space elevator, here we come.

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You' ve missed the POINT

By tapa on 1/22/2006 4:25:27 PM , Rating: 3

The source claims that ordinary nanotubes can be stretched at high temperatures and that they are therefore strong only at high temperatures. And it is not a new method of manufacturing stronger nanotubes; just a newly discovered behavior at high temperatures.

RE: You' ve missed the POINT

By KristopherKubicki

(blog) on 1/22/2006 4:37:41 PM , Rating: 2

Touche.

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RE: You' ve missed the POINT

By ted61 on 1/22/2006 7:57:22 PM , Rating: 1

I did not see where the article said the nanotubes are only strong at high temperatures. Steel get stretched at high temperatures and is strong at low temperatures. Maybe nanotubes act the same as steel. They are both carbon.

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RE: You' ve missed the POINT

By rickon66 on 1/22/2006 8:08:55 PM , Rating: 2

"Maybe nanotubes act the same as steel. They are both carbon."
Steel is carbon? I thought it was primarily iron. I learn something new every day.

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RE: You' ve missed the POINT

By ksuWildcat on 1/22/2006 8:16:37 PM , Rating: 2

LOL!

Yeah, I'd have to say it's primarily iron (last time I checked, that was Fe on the periodic table) too. Eh, I'm a computer engineer, not a materials engineer, so what the heck do I know.

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RE: You' ve missed the POINT

By marvdmartian on 1/22/2006 9:06:04 PM , Rating: 2

Well, I think they were thinking of carbon steel, which is made with a trace amount of carbon in it, for better corrosion resistance, if I remember. But yeah, steel is primarily iron, with added elements (carbon, cobalt, etc) that do different things for it, including adding strength, corrosion resistance and hardness.

You can look here if you're interested:
http://www.newgraham.com/steel_faq.htm :)

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RE: You' ve missed the POINT

By Proton on 1/23/2006 12:56:38 AM , Rating: 2

The term steel refers to alloys of iron and carbon and, in many cases, other elements. There are plain carbon steels, alloy steels, stainless steels, high strength steels, and structural steels.
As carbon content increases, the strength and hardness of steel also increases. Carbon content usually ranges from a low of 0.1 percent to about 1.0 percent. While strength increases with increasing carbon content, the steel also becomes more brittle.

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