CRYSTAL CHEMISTRY OF ALPHA BORON DERIVATIVES.

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Abstract:

Assignment of stoichiometry to interstitial compounds is discussed. It is shown that multiple stoichiometries can occur within the same structural framework where more than one type of interstitial opening is available. These principles are used to clarify the confusion which currently exists in the isotypic series of interstitial compounds derived from alpha boron. With respect to occupancy of interstitial sites three distinct stoichiometries can exist in this isotypic group namely, B12 X2Y B12X3, B12X2 and B12X. Data are presented on 1 a new form of boron carbide B12C2, 2 a new alpha boron derivative containing interstitial aluminum B12C2A1, 3 identification and differentiation of two boron subphosphides B12P2 and B13P2, 4 preparation of boron subarsenide, and 5 relationship between metal dodecaborides and alpha boron derivatives. Author

Author(s):
Economy, J. ; Matkovich, V. I. ; Giese, R. F., Jr.
Author Organization(s):
CARBORUNDUM CO NIAGARA FALLS N Y
Descriptive Note:
Technical rept. no. 6,
Supplementary Note:
Rept. on Interstitial Compounds of Boron and Transition Metals.
Annotation:
Crystal chemistry of alpha boron derivatives.
Pagination:
0022

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release

RECORD

Collection: TR
Identifying Numbers
Contract/Grant Number(s):
Nonr407500
Project Number(s):
NR056 449
 Subject Terms
Communities of Interest:
No COI(s) Identified
Descriptor(s):
(*BORON COMPOUNDS, CRYSTAL STRUCTURE), (*CRYSTAL STRUCTURE, CHEMICAL ANALYSIS), MOLECULAR WEIGHT, ATOMIC PROPERTIES, CARBIDES, PHOSPHIDES, ARSENIDES, ALUMINUM COMPOUNDS, SILICIDES, SULFIDES, BORIDES, TRANSITION METALS, CRYSTAL LATTICES, CHEMICAL REACTIONS
Keyword(s):
BORON ARSENIDE, BORON PHOSPHIDES, BORON CARBIDES
Report Date:
1964 Nov 01