Scientists design new super-hard material

Ultra-hard materials are used for everything from drills that bore for oil and build new roads to scratch-resistant coatings for precision instruments and the face of your watch.

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<p><a href="http://www.physorg.com/news96284242.html">Scientists design new super-hard material</a></p> <p>Ultra-hard materials are used for everything from drills that bore for oil and build new roads to scratch-resistant coatings for precision instruments and the face of your watch.</p>