Diamond Case

Yuan Shi
December 2010, Japanese scientists
Cylindrical "Yuan Shi"
Successfully synthesized the world's cubic boron nitride hardest diamond, more than 1 cm in diameter, and strive to cooperate with the fastest production company said.
This is the result of a cylindrical diamond Ehime University researchers in Japan with Sumitomo Electric Industries, Inc. cooperation, was named "Yuan Shi", taken from "Ehime."
Tetsuo researchers into the boat, said Yuan stone is the world's hardest artificial diamond, diamond-hard, a lot more than ordinary, and therefore can be applied to many industrial activities were. "Yuan Shi can help people learn more about carbon elemental crystals under high pressure and temperature conditions deep in the earth formation; same time, as a kind of industrial supplies, its life expectancy is several times longer than ordinary diamond.