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Bonding mismatched materials
06-15-2013, 04:55 PM #1
UniqueStranger Art in my heart
Posts:15,120 Threads:443 Joined:Jun 2012
Quote:Building such composites requires a clear understanding of what’s happening when materials that aren’t necessarily compatible are combined.


Rouzbeh Shahsavari, left, and Navid Sakhavand analyzed the molecular interface between cement and a polymer in a new Langmuir paper. Photo by Jeff Fitlow

“This could have applications for composites in cars, airplanes and civil engineering materials,” Shahsavari said. “Here, our focus is on inorganic silicates like cement (a key strengthening component of concrete) interacting with a polymer to provide a hybrid composite with high toughness and ductility. Otherwise, cement by itself is a brittle material.”

http://news.rice.edu/2013/06/10/mismatch...gh-enough/

I find this stuff fascinating.

I am reminded of this Star Trek scene. chuckle.gif

Anonymous Kritter Show this Post
06-16-2013, 04:02 AM #2
Anonymous Kritter Incognito Anonymous
 

@1:15 right after he talks about the space crapper

Adair talks about zero G metal composites that can be made in space and what kinds of new forms it takes when molded by sound ...interesting stuff. One of them being a transparent composite metal that can be made extremely thin that can stop bullets.
Anonymous Kritter Show this Post
06-16-2013, 04:06 AM #3
Anonymous Kritter Incognito Anonymous
 
"trans steel"
06-16-2013, 04:13 AM #4
JayRodney ⓐⓛⓘⓔⓝ
Posts:30,654 Threads:1,483 Joined:Feb 2011
The transparent aluminum scene was one of the best moments in the movie beercheer.gif

wonder.gif
06-16-2013, 06:25 AM #5
UniqueStranger Art in my heart
Posts:15,120 Threads:443 Joined:Jun 2012
I think so too JR, but what's next? Transparent cement? wtf2.gif
Anonymous Kritter Show this Post
06-16-2013, 08:07 AM #6
Anonymous Kritter Incognito Anonymous
 
I do this at home with cement and concrete (depends on the material but cement tends to be better because it's "fine" whereas concrete is coarse). Originally, I did it to save money but there are some moderate structural advantages to doing it (adding chipped or liquid rubber (latex) to cement will become more resistant to block chipping). I have had mixed results with other materials because of a lack of adequate fabrication tools for those materials, but still can use other materials as filler.
06-16-2013, 03:42 PM #7
UniqueStranger Art in my heart
Posts:15,120 Threads:443 Joined:Jun 2012
Quote:“Natural materials like bones, teeth and shells all have a hybrid of soft and stiff material inside, arranged in a brick-and-mortar pattern,” Shahsavari said. “This has inspired humans to build engineered composites by mimicking those natural designs.”
(from my original link above)

They are actually studying the existing molecular bond between mismatched materials to understand the properties and 'design' for future bonding of other mismatched materials; to create a new generation of hybrid materials.

I wonder if once we understand the bond between mismatched materials, we can then tweak or learn how to rearrange them?
Anonymous Kritter Show this Post
06-16-2013, 04:46 PM #8
Anonymous Kritter Incognito Anonymous
 
(06-16-2013, 04:13 AM)JayRodney Wrote:  The transparent aluminum scene was one of the best moments in the movie beercheer.gif


Have you seen this - transparent aluminum is REAL!!!
http://dornob.com/transparent-aluminum-g...z2WO2SzaUO
06-16-2013, 05:24 PM #9
UniqueStranger Art in my heart
Posts:15,120 Threads:443 Joined:Jun 2012
(06-16-2013, 04:46 PM)Anonymous Kritter Wrote:  
(06-16-2013, 04:13 AM)JayRodney Wrote:  The transparent aluminum scene was one of the best moments in the movie beercheer.gif


Have you seen this - transparent aluminum is REAL!!!
http://dornob.com/transparent-aluminum-g...z2WO2SzaUO


Wow.

spock.gif



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