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Strength of Diamonds
- Posted at 10:59 AM on Jan. 29, 2010 by ausetute Diamonds are formed naturally out of carbon-containing minerals at high pressure and temperature and at depths of about 140-190km (87-120 miles) in the Earth's mantle, taking up to 3.3 billion years to grow. Diamonds are known to be very hard and very strong, easily cutting through glass and steel. Scientists have been measuring the behaviour of natural diamond crystals under shock-wave compression between 1 million and 10 million atmospheres pressure and have found that diamonds retain their strength right up to the point at which they melt (6million atmospheres pressure and 7800oC (14,000oF) R. S. McWilliams, J. H. Eggert, D. G. Hicks, D. K. Bradley, P. M. Celliers, D. K. Spaulding, T. R. Boehly, G. W. Collins, and R. Jeanloz. Strength effects in diamond under shock compression from 0.1 to 1 TPa. Physical Review B, 2010; 81 (1): 014111 DOI: 10.1103/PhysRevB.81.014111 Post Comment
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