Nuclear magnetic resonance studies of the structure of boron carbides
Journal Article
·
· AIP Conf. Proc.; (United States)
Nuclear magnetic resonance studies of boron carbides have focused primarily on the crystal structure of B/sub 12/C/sub 3/. /sup 11/B NMR measurements showed that many, if not all, (111) chains have (CBC) structure, rather than the (CCC) originally proposed for B/sub 12/C/sub 3/. Subsequent /sup 11/B measurements were not consistent with all-boron icosahedra, and suggested carbon substitution. Recent /sup 13/C measurements were interpreted as supporting the (B/sub 12/)(CCC) structure. The strength of the support was overestimated, and (B/sub 11/C) (CBC) does approximately as well.
- Research Organization:
- GTE Laboratories, Incorporated, Waltham, Massachusetts 02254, USA
- OSTI ID:
- 5755335
- Report Number(s):
- CONF-850786-
- Journal Information:
- AIP Conf. Proc.; (United States), Journal Name: AIP Conf. Proc.; (United States) Vol. 140:1; ISSN APCPC
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
36 MATERIALS SCIENCE
360202* -- Ceramics
Cermets
& Refractories-- Structure & Phase Studies
BORON 11
BORON CARBIDES
BORON COMPOUNDS
BORON ISOTOPES
CARBIDES
CARBON 13
CARBON COMPOUNDS
CARBON ISOTOPES
CHEMICAL SHIFT
CRYSTAL LATTICES
CRYSTAL STRUCTURE
EVEN-ODD NUCLEI
FOURIER TRANSFORMATION
INTEGRAL TRANSFORMATIONS
ISOTOPES
LIGHT NUCLEI
MAGNETIC RESONANCE
NUCLEAR MAGNETIC RESONANCE
NUCLEI
ODD-EVEN NUCLEI
ORTHORHOMBIC LATTICES
PERTURBATION THEORY
RESONANCE
SPIN ECHO
STABLE ISOTOPES
TRANSFORMATIONS
360202* -- Ceramics
Cermets
& Refractories-- Structure & Phase Studies
BORON 11
BORON CARBIDES
BORON COMPOUNDS
BORON ISOTOPES
CARBIDES
CARBON 13
CARBON COMPOUNDS
CARBON ISOTOPES
CHEMICAL SHIFT
CRYSTAL LATTICES
CRYSTAL STRUCTURE
EVEN-ODD NUCLEI
FOURIER TRANSFORMATION
INTEGRAL TRANSFORMATIONS
ISOTOPES
LIGHT NUCLEI
MAGNETIC RESONANCE
NUCLEAR MAGNETIC RESONANCE
NUCLEI
ODD-EVEN NUCLEI
ORTHORHOMBIC LATTICES
PERTURBATION THEORY
RESONANCE
SPIN ECHO
STABLE ISOTOPES
TRANSFORMATIONS