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03/25/2011 01:18 AM ID: 88452 Permalink   

Self-Strengthening Nanocomposite Material Developed

 

Rice University Mechanical Engineers have developed a polymer based material that becomes stiffer when subjected to repeated stresses. Normally materials tend to break down under repeated stress.

After two weeks of compressions, the stiffness increased by 12 percent. The material is a composite created by “infiltrating a forest of vertically aligned, multiwalled nanotubes with polydimethylsiloxane (PDMS), an inert, rubbery polymer.”

Professor Carey said one of his biggest challenges was programming his computers and measuring instruments into believing the sample could actually get stiffer as it was not part of their programming.

 
  Source: www.physorg.com  
    WebReporter: Valkyrie123 Show Calling Card      
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  3 Comments
  
  What happens when it reaches maximum stiffness?  
 
time inverts
 
  by: sceptre_of_fertility   03/25/2011 03:16 AM     
  Well...  
 
Chewing gum does this too... The longer it gets gnawed on the tougher it gets.



[ edited by richie65x ]
 
  by: richie65x   03/25/2011 04:27 AM     
  sceptre_of_fertility  
 
My guess is it is like a man.

When it is young it just gets stiffer and stiffer, when it gets old it needs a little help.
 
  by: ichi     03/25/2011 06:22 AM     
 
 
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