What was the compound recently created using high pressure which is hard enough to scratch diamond?
April 20, 2007 — “Our goal was to find new hard materials by design, rather than by trial and error,” said Sarah Tolbert at the University of California, Los Angeles, who was part of the research team that created the new superhard, ultra-incompressible material, rhenium diboride. The team found that in some circumstances it could actually scratch diamond. The material showed different hardness when tested from different angles.
