High-pressure, high-temperature synthesis of superhard boron suboxide
Book
·
OSTI ID:470906
- Arizona State Univ., Tempe, AZ (United States)
A multianvil device was used to investigate the formation of B{sub x}O phases produced in the 2 to 10 GPa pressure range with temperatures between 1,000 and 1,800 C. Amorphous and crystalline B and BP were oxidized using B{sub 2}O{sub 3} and CrO{sub 3}. Using powder X-ray diffraction and parallel electron energy-loss spectroscopy (PEELS), the authors were unable to detect graphitic or diamond-structured B{sub 2}O, reported in previous studies. The refractory boride B{sub 6}O, which has the {alpha}-rhombohedral boron structure, is the dominant suboxide in the P and T range of the investigation. PEELS with a transmission electron microscope was used to characterize the boron oxides.
- Sponsoring Organization:
- National Science Foundation, Washington, DC (United States)
- OSTI ID:
- 470906
- Report Number(s):
- CONF-951155--; ISBN 1-55899-313-4
- Country of Publication:
- United States
- Language:
- English
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