THE BORON-CARBON SYSTEM. Final Technical Report, May 1, 1960-April 30, 1961

Technical Report · Thu Jun 01 00:00:00 EDT 1961

DOI:https://doi.org/10.2172/4003641· OSTI ID:4003641

Elliott, R P

The boron--carbon equilibrium diagram was determined by x-ray, metallographic, and thermal analysis of sintered and arc-cast alloys. A single carbide having a range of solubility from approximately 9 to 20 at.% carbon and melting congruently exists in the system. The terminal solubility of carbon in boron is 0.1-0.2 at.%. The freezing reaction between boron and the carbide is a degenerate peritectic --eutectic reaction at the composition and melting temperature of elemental boron; there is a eutectic reaction at 29 at.% carbon and 2375 deg C. No allotropy of boron was observed. (auth)

• Research Organization: Illinois Inst. of Tech., Chicago. Armour Research Foundation
• DOE Contract Number: AT(11-1)-578
• NSA Number: NSA-15-026534
• OSTI ID: 4003641
• Report Number(s): ARF-2200-12
• Resource Relation: Other Information: Orig. Receipt Date: 31-DEC-61
• Country of Publication: United States
• Language: English

Related Subjects

METALS, CERAMICS, AND OTHER MATERIALS
BORON
CARBIDES
CARBON
CASTING
DIFFRACTION
DTA
ELECTRIC ARCS
EUTECTICS
EXPANSION
HIGH TEMPERATURE
METALLOGRAPHY
PHASE DIAGRAMS
REPORT
SINTERED MATERIALS
SOLUBILITY
TEMPERATURE
X RADIATION