RESEARCH ON THE SYSTEMS THORIUM-TUNGSTEN-CARBON AND URANIUM-TUNGSTEN-CARBON

Journal Article · Fri Apr 20 04:00:00 EST 1962 · Monatshefte fuer Chemie (Austria)

DOI:https://doi.org/10.1007/BF00903152· OSTI ID:4778811

Rudy, E; Rudy, E; Benesovsky, F

The three-component Th-W-C and U-W-C sintered and luminous-arc-melted alloys were investigated by x-ray spectroscopy and metallography. A phase distribution diagram was undertaken, Thorium dissolved approximately 8 at, % carbon by lattice expansion (to a = 5.12 A), The region of ThC reached, at 1500 deg C, from 38 to 50 at. % C (a = 5.30 to 5.34 A). In the system Th-W-C no ternary phases appeared; the equilibrium was determined by means of the combinations of the boundary systems. In the system U-W-C the previously found ternary phase UWC/sub 2/ and its struetare (a =5.838 A, b = 3.255 A, and c = 10.98 A) were confirmed. In the compound UWC/sub 2/ no noticeable exchange of uranium for thorium was observed. The solubility regions were small in both systems. On the basis of observed reactions the free formanion enthalpy for ThC/ sub 2/ (--32 to --23.3 kcal/mol) and UWC/sub 2/ (--37.7 to 41.2 kcal/mol) could be calculated. (tr-auth)

• Research Organization: Metallwerk Plansee AG., Reutte, Tirol, Austria
• Sponsoring Organization: USDOE
• NSA Number: NSA-17-000564
• OSTI ID: 4778811
• Journal Information: Monatshefte fuer Chemie (Austria), Journal Name: Monatshefte fuer Chemie (Austria) Vol. Vol: 93; ISSN MOCHA
• Country of Publication: Country unknown/Code not available
• Language: German

Related Subjects

ALLOYS
CARBIDES
CARBON
COMPOUNDS
DIFFRACTION
ELECTRIC ARCS
EXPANSION
LATTICES
MELTING
METALLOGRAPHY
METALS, CERAMICS, AND OTHER MATERIALS
PHASE DIAGRAMS
SINTERED MATERIALS
SOLUBILITY
SOLUTIONS
SPECTROMETERS
THERMODYNAMICS
THORIUM ALLOYS
THORIUM CARBIDES
TUNGSTEN ALLOYS
TUNGSTEN CARBIDES
URANIUM ALLOYS
URANIUM CARBIDES
X RADIATION