>
> On Dec 3, 2009, at 6:51 PM, Jim Korman wrote:
>
> YES NOPE9 wrote:
>> Scientists have announced they can now  make boron-nitride nanotube
>> yarn.  My question is ...... what are these yarns characteristics ?
>> Anyone know ?    I found nothing on gweegle.
>>
>> Gus
>>
> I'm starting to get frustrated with google these days, tried bing  
> and found
>
> http://www.eetimes.com/story/OEG20010319S0093
>
> Jim


 From Jim Korman's link

Carbon nanostructures, such as the 60-molecule spheres known as  
buckyballs, have found wide technological uses, but undesirable  
electronic and mechanical properties have limited their applications.

BN nanostructures, however, are semiconducting with a gap of roughly  
5.5 electron-volts, independent of tube diameter, number of layers and  
chirality. They also grow from their exposed ends, rather than from  
the substrate side, making them easier to form into oxidation-proof  
coatings that are lighter but stronger than steel.


For the future, the researchers hope to extend their technique to  
another world first: direct deposition of carbon nitride  
nanostructures, which are hypothesized to have extensive electronic  
applications.

[ I wonder what the strength to weight ratio is for BN and CN  
materials ? ]
Gus
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