Errymath: metal matrix composite

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<span style="font-size: large;">The metal that can float on water: Radical new material could lead to 'indestructible' warships and ultralight cars</span></h1>
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<li class=""><span style="font-size: small;"><strong>Metal matrix composite was developed with the US Army </strong></span></li>
<li class=""><span style="font-size: small;"><strong>Alloy is turned into foam by adding strong, lightweight hollow spheres</strong></span></li>
<li class=""><span style="font-size: small;"><strong>Warship made of it will not sink despite damage to its structure</strong></span></li>
<li class=""><span style="font-size: small;"><strong>Light weight could improve fuel economy in ultralight cars</strong></span></li>
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<i>By

Mark Prigg For Dailymail.com</i>

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<span style="font-size: 1.2em;">Researchers have demonstrated a new type of metal so light it can float on water.</span></div>
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<span style="font-size: 1.2em;">The radical new material, called a metal matrix composite, was developed with the US Army. </span></div>
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<span style="font-size: 1.2em;">A boat made of such lightweight composites will not sink despite damage to its structure. </span></div>
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<img alt="The radical new material, called a metal matrix composite, was developed with the US Army and could be used in everything from warship to cars." class="blkBorder img-share" height="420" id="i-51753905f6fd62eb" src="http://i.dailymail.co.uk/i/pix/2015/05/14/23/28B09ED000000578-0-image-a-40_1431642214956.jpg" width="634" /><div class="share-pictures-overlay" id="share-pictures-1">
  
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The radical new material, called a 
metal matrix composite, was developed with the US Army and could be used
 in everything from warship to cars.</div>
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<span style="background-color: #f9cb9c;"><span style="font-weight: bold;">HOW IT IS MADE </span></span></h3>
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<span style="background-color: #fce5cd;"><span style="font-size: 1.2em;">The syntactic foam captures the lightness of foams, but adds substantial strength.</span></span></div>
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<span style="background-color: #fce5cd;"><span style="font-size: 1.2em;">The
 secret of this syntactic foam starts with a matrix made of a magnesium 
alloy, which is then turned into foam by adding strong, lightweight 
silicon carbide hollow spheres developed and manufactured by DST. </span></span></div>
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<span style="background-color: #fce5cd;"><span style="font-size: 1.2em;">A
 single sphere's shell can withstand pressure of over 25,000 pounds per 
square inch (PSI) before it ruptures—one hundred times the maximum 
pressure in a fire hose.</span></span></div>
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<span style="font-size: 1.2em;">The new material also promises to improve automotive fuel economy because it combines light weight with heat resistance</span></div>
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<span style="font-size: 1.2em;">Although
 syntactic foams have been around for many years, this is the first 
development of a lightweight metal matrix syntactic foam. </span></div>
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<span style="font-size: 1.2em;">'This
 new development of very light metal matrix composites can swing the 
pendulum back in favor of metallic materials,' said Nikhil Gupta, an NYU
 School of Engineering professor in the Department of Mechanical and 
Aerospace Engineering and the study's co-author.</span></div>
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<span style="font-size: 1.2em;">It was created by Deep Springs Technology  and the New York University Polytechnic School of Engineering.</span></div>
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<span style="font-size: 1.2em;">'The
 ability of metals to withstand higher temperatures can be a huge 
advantage for these composites in engine and exhaust components, quite 
apart from structural parts.' </span></div>
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<span style="font-size: 1.2em;">The
 magnesium alloy matrix composite is reinforced with silicon carbide 
hollow particles and has a density of only 0.92 grams per cubic 
centimeter compared to 1.0 g/cc of water. </span></div>
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<span style="font-size: 1.2em;">Not
 only does it have a density lower than that of water, it is strong 
enough to withstand the rigorous conditions faced in the marine 
environment.</span></div>
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<span style="font-size: 1.2em;">Significant
 efforts in recent years have focused on developing lightweight polymer 
matrix composites to replace heavier metal-based components in 
automobiles and marine vessels. </span></div>
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<span style="font-size: 1.2em;">The
 technology for the new composite is very close to maturation and could 
be put into prototypes for testing within three years. </span></div>
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<span style="font-size: 1.2em;">Amphibious
 vehicles such as the Ultra Heavy-lift Amphibious Connector (UHAC) being
 developed by the U.S. Marine Corps can especially benefit from the 
light weight and high buoyancy offered by the new syntactic foams, the 
researchers explained.</span></div>
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<span style="font-size: 1.2em;">The syntactic foam made by DST and NYU captures the lightness of foams, but adds substantial strength. </span></div>
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<img alt="HMS Daring, a new £1 billion warship: Using the new material, future ships could look radically different - and be able to survive multiple hits without sinking" class="blkBorder img-share" height="421" id="i-d028059ccf2027cb" src="http://i.dailymail.co.uk/i/pix/2015/05/14/23/016FE320000004B0-0-image-a-46_1431642646989.jpg" width="634" /><div class="share-pictures-overlay" id="share-pictures-2">
  
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HMS Daring, a new £1 billion warship: 
Using the new material, future ships could look radically different - 
and be able to survive multiple hits without sinking</div>
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<div class="mol-para-with-font">
<span style="font-size: 1.2em;">The
 secret of this syntactic foam starts with a matrix made of a magnesium 
alloy, which is then turned into foam by adding strong, lightweight 
silicon carbide hollow spheres developed and manufactured by DST. </span></div>
<div class="mol-para-with-font">
<span style="font-size: 1.2em;">A
 single sphere's shell can withstand pressure of over 25,000 pounds per 
square inch (PSI) before it ruptures—one hundred times the maximum 
pressure in a fire hose.</span></div>
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<span style="font-size: 1.2em;">The
 hollow particles also offer impact protection to the syntactic foam 
because each shell acts like an energy absorber during its fracture. </span></div>
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<span style="font-size: 1.2em;">The
 composite can be customized for density and other properties by adding 
more or fewer shells into the metal matrix to fit the requirements of 
the application. </span></div>
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<span style="font-size: 1.2em;">This concept can also be used with other magnesium alloys that are non-flammable.</span></div>
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<span style="font-size: 1.2em;">The new composite has potential applications in boat flooring, automobile parts, and buoyancy modules as well as vehicle armour.</span></div>
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Metal Matrix Composite : New radical metal material could float on water

The metal that can float on water: Radical new material could lead to 'indestructible' warships and ultralight cars Metal matrix...

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Metal Matrix Composite : New radical metal material could float on water

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