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Title: Synthesis of new Diamond-like B-C Phases under High Pressure and Temperatures

A cubic BC3 (c-BC3) phase was synthesized by direct transformation from graphitic phases at a pressure of 39 GPa and temperature of 2200 K in a laser-heated diamond anvil cell (DAC). A combination of x-ray diffraction (XRD), electron diffraction (ED), transmission electron microscopy (TEM) imaging, and electron energy loss spectroscopy (EELS) measurements lead us to conclude that the obtained phase is hetero-nano-diamond, c-BC3. The EELS measurements show that the atoms inside the cubic structure are bonded by sp3 bonds.
 [1] ;  [1] ;  [1]
  1. University of Hawaii
Publication Date:
OSTI Identifier:
Report Number(s):
Final Report
DOE Contract Number:
Resource Type:
Technical Report
Research Org:
Li Chung Ming
Sponsoring Org:
USDOE; USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
Contributing Orgs:
University of Hawaii, Hawaii Institute of Geophysics & Planetology
Country of Publication:
United States
36 MATERIALS SCIENCE High-pressure synthesis, BCx, Cubic BC3, laser-heated diamond anvil cell, Raman spectroscopy, TEM, EELS, Laser ultrasonic, XRD, Electron diffraction