High-pressure, high-temperature synthesis of superhard boron suboxide

H. Hubert, Laurence Garvie, Kurt Leinenweber, P R Buseck, William Petuskey, P. F. McMillan

Research output: Chapter in Book/Report/Conference proceedingConference contribution

14 Scopus citations


A multianvil device was used to investigate the formation of B xO phases produced in the 2 to 10 GPa pressure range with temperatures between 1000 and 1800 °C. Amorphous and crystalline B and BP were oxidized using B 2O 3 and CrO 3. Using powder X-ray diffraction and parallel electron energy-loss spectroscopy (PEELS), we were unable to detect graphitic or diamond-structured B 2O, reported in previous studies. The refractory boride B 6O, which has the α-rhombohedral boron structure, is the dominant suboxide in the P and T range of our investigation. PEELS with a transmission electron microscope was used to characterize the boron oxides.

Original languageEnglish (US)
Title of host publicationMaterials Research Society Symposium - Proceedings
EditorsRudiger Bormann, Giorgio Mazzone, Robert D. Shull, Robert S. Averback, Ronald F. Ziolo
PublisherMaterials Research Society
Number of pages6
StatePublished - 1996
EventProceedings of the 1995 Fall MRS Symposium - Boston, MA, USA
Duration: Nov 27 1995Nov 30 1995


OtherProceedings of the 1995 Fall MRS Symposium
CityBoston, MA, USA

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials


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