Direct Evidence of Catalytic Role of Boron in Graphite‐to‐Diamond Solid‐Phase Conversion under High Pressure
At a Glance
Section titled “At a Glance”| Metadata | Details |
|---|---|
| Publication Date | 2020-06-13 |
| Journal | physica status solidi (RRL) - Rapid Research Letters |
| Authors | R. Kh. Bagramov, В. П. Филоненко, И. П. Зибров, S. G. Lyapin, И. И. Власов |
| Institutions | Prokhorov General Physics Institute, Institute for High Pressure Physics |
| Citations | 6 |
Abstract
Section titled “Abstract”Herein experimental evidence on the catalytic role of boron in the conversion of graphite to diamond is presented. Highly ordered graphite with up to 1.5% of carbon atoms substituted with boron is obtained from a mixture of nanoglobular carbon and amorphous boron at 5.0 GPa and 1400-1700 °C. It transforms completely into heavily boron‐doped diamond at a pressure of 7.5-8.0 GPa and temperature of 1600-1650 °C, which is well below the melting temperature of boron-carbon eutectic.