Synthetic diamonds for multimegabar pressures in the diamond anvil cell

1 April 1990

journal article
research article
Published by Taylor & Francis in High Pressure Research

Vol. 5 (1-6) , 791-793
https://doi.org/10.1080/08957959008246260

Abstract

Synthetic Type 1b yellow diamonds containing nitrogen in substitutional form and with extremely low birefringence were used as anvils for ultra high pressures in the diamond anvil cell. Pressures were measured by the ruby fluorescence technique to above 200 GPa. Using x-ray diffraction the maximum pressure was 210 GPa, while an x-ray based pressure of 245 GPa was achieved with natural diamonds with a somewhat more optimal geometry. Nitrogen platelets appear to be not essential for exceeding 200 GPa. The optical properties of synthetic diamond at ambient and megabar stresses will be discussed.

Keywords

This publication has 1 reference indexed in Scilit:

Multimegabar pressures using synthetic diamond anvils
Applied Physics Letters, 1989