High-Pressure, High-Temperature Syntheses in the B-C-N-O System

Hervé Hubert; Laurence Garvie; P R Buseck; William Petuskey; Paul F. McMillan

doi:10.1006/jssc.1997.7582

High-Pressure, High-Temperature Syntheses in the B-C-N-O System

Hervé Hubert, Laurence Garvie, P R Buseck, William Petuskey, Paul F. McMillan

Research output: Contribution to journal › Article › peer-review

65 Scopus citations

Abstract

We synthesized severalα-rhombohedral B-rich materials belonging to the B-C-N-O system using a multianvil press. B-C-O materials were prepared by reacting mixtures of B, C, and B₂O₃in the 5 to 7.5 GPa pressure range and at a temperature of 1700°C. Powder X-ray diffraction and parallel electron energy-loss spectroscopy with a transmission electron microscope showed that the B_xC_yO_zphases obtained are based on theα-rhombohedral B structure. Crystals of composition B₆C_1.1O_0.33to B₆C_1.28O_0.31ranging in size from 1 to 20 μm were grown. Small transparent lustrous red cleavage flakes were obtained for stoichiometries close to B₆O. The growth of boron carbide nanorods was also observed in some of the run products. We report the first conclusive bulk synthesis of a new boron nitride, B₆N_1-x, obtained by reacting B and hexagonal BN at 7.5 GPa and 1700°C. The structure of this compound is derived from that ofα-rhombohedral B (space groupeR3m) and the refined hexagonal cell parameters area_h=5.457 Å andc_h=12.241 Å.

Original language	English (US)
Pages (from-to)	356-364
Number of pages	9
Journal	Journal of Solid State Chemistry
Volume	133
Issue number	2
DOIs	https://doi.org/10.1006/jssc.1997.7582
State	Published - Nov 1 1997

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Ceramics and Composites
Condensed Matter Physics
Physical and Theoretical Chemistry
Inorganic Chemistry
Materials Chemistry

Access to Document

10.1006/jssc.1997.7582

Cite this

@article{a8a843146a994297b02e8f21f9c2069a,

title = "High-Pressure, High-Temperature Syntheses in the B-C-N-O System",

abstract = "We synthesized severalα-rhombohedral B-rich materials belonging to the B-C-N-O system using a multianvil press. B-C-O materials were prepared by reacting mixtures of B, C, and B2O3in the 5 to 7.5 GPa pressure range and at a temperature of 1700°C. Powder X-ray diffraction and parallel electron energy-loss spectroscopy with a transmission electron microscope showed that the BxCyOzphases obtained are based on theα-rhombohedral B structure. Crystals of composition B6C1.1O0.33to B6C1.28O0.31ranging in size from 1 to 20 μm were grown. Small transparent lustrous red cleavage flakes were obtained for stoichiometries close to B6O. The growth of boron carbide nanorods was also observed in some of the run products. We report the first conclusive bulk synthesis of a new boron nitride, B6N1-x, obtained by reacting B and hexagonal BN at 7.5 GPa and 1700°C. The structure of this compound is derived from that ofα-rhombohedral B (space groupeR3m) and the refined hexagonal cell parameters areah=5.457 {\AA} andch=12.241 {\AA}.",

author = "Herv{\'e} Hubert and Laurence Garvie and Buseck, {P R} and William Petuskey and McMillan, {Paul F.}",

note = "Funding Information: We are grateful to Bertrand Devouard (Arizona State University) for his assistance with the SEM work and to T. Aselage (Sandia National Labs) for supplying the B C samples. This work was supported by NSF MRG DMR-91-21570 and9NSF EAR-9418206 (L.A.J.G. and P.R.B.). The PEELS instrument used for this research was performed at the Center for High Resolution Electron Microscopy, at Arizona State University, established with support from The National Science Foundation (Grant DMR-89-13384).",

year = "1997",

month = nov,

day = "1",

doi = "10.1006/jssc.1997.7582",

language = "English (US)",

volume = "133",

pages = "356--364",

journal = "Journal of Solid State Chemistry",

issn = "0022-4596",

publisher = "Academic Press Inc.",

number = "2",

}

TY - JOUR

T1 - High-Pressure, High-Temperature Syntheses in the B-C-N-O System

AU - Hubert, Hervé

AU - Garvie, Laurence

AU - Buseck, P R

AU - Petuskey, William

AU - McMillan, Paul F.

N1 - Funding Information: We are grateful to Bertrand Devouard (Arizona State University) for his assistance with the SEM work and to T. Aselage (Sandia National Labs) for supplying the B C samples. This work was supported by NSF MRG DMR-91-21570 and9NSF EAR-9418206 (L.A.J.G. and P.R.B.). The PEELS instrument used for this research was performed at the Center for High Resolution Electron Microscopy, at Arizona State University, established with support from The National Science Foundation (Grant DMR-89-13384).

PY - 1997/11/1

Y1 - 1997/11/1

N2 - We synthesized severalα-rhombohedral B-rich materials belonging to the B-C-N-O system using a multianvil press. B-C-O materials were prepared by reacting mixtures of B, C, and B2O3in the 5 to 7.5 GPa pressure range and at a temperature of 1700°C. Powder X-ray diffraction and parallel electron energy-loss spectroscopy with a transmission electron microscope showed that the BxCyOzphases obtained are based on theα-rhombohedral B structure. Crystals of composition B6C1.1O0.33to B6C1.28O0.31ranging in size from 1 to 20 μm were grown. Small transparent lustrous red cleavage flakes were obtained for stoichiometries close to B6O. The growth of boron carbide nanorods was also observed in some of the run products. We report the first conclusive bulk synthesis of a new boron nitride, B6N1-x, obtained by reacting B and hexagonal BN at 7.5 GPa and 1700°C. The structure of this compound is derived from that ofα-rhombohedral B (space groupeR3m) and the refined hexagonal cell parameters areah=5.457 Å andch=12.241 Å.

AB - We synthesized severalα-rhombohedral B-rich materials belonging to the B-C-N-O system using a multianvil press. B-C-O materials were prepared by reacting mixtures of B, C, and B2O3in the 5 to 7.5 GPa pressure range and at a temperature of 1700°C. Powder X-ray diffraction and parallel electron energy-loss spectroscopy with a transmission electron microscope showed that the BxCyOzphases obtained are based on theα-rhombohedral B structure. Crystals of composition B6C1.1O0.33to B6C1.28O0.31ranging in size from 1 to 20 μm were grown. Small transparent lustrous red cleavage flakes were obtained for stoichiometries close to B6O. The growth of boron carbide nanorods was also observed in some of the run products. We report the first conclusive bulk synthesis of a new boron nitride, B6N1-x, obtained by reacting B and hexagonal BN at 7.5 GPa and 1700°C. The structure of this compound is derived from that ofα-rhombohedral B (space groupeR3m) and the refined hexagonal cell parameters areah=5.457 Å andch=12.241 Å.

UR - http://www.scopus.com/inward/record.url?scp=0000375282&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0000375282&partnerID=8YFLogxK

U2 - 10.1006/jssc.1997.7582

DO - 10.1006/jssc.1997.7582

M3 - Article

AN - SCOPUS:0000375282

SN - 0022-4596

VL - 133

SP - 356

EP - 364

JO - Journal of Solid State Chemistry

JF - Journal of Solid State Chemistry

IS - 2

ER -

High-Pressure, High-Temperature Syntheses in the B-C-N-O System

Abstract

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this