Abstract
A new compression technique, which enables the study of solids into the TPa regime, is described and used to ramp (or quasi-isentropically) compress diamond to a peak pressure of 1400 GPa. Diamond stress versus density data are reported to 800 GPa and suggest that the diamond phase is stable and has significant material strength up to at least this stress level. Data presented here are the highest ramp compression pressures by more than a factor of 5 and the highest-pressure solid equation-of-state data ever reported.
- Received 6 January 2008
DOI:https://doi.org/10.1103/PhysRevLett.102.075503
©2009 American Physical Society
Synopsis
Diamonds are a scientist’s best friend
Published 19 February 2009
Diamond is famous for its exceptional hardness and structural stability. Researchers are exploring different ways to push these mechanical properties beyond their current limits.
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