S 65. The carbides of uranium and thorium

Wilhelm, H.A.; Chiotti, P.; Snow, A. I.; Daane, A.H.

doi:10.1039/jr949000s318

Cited by 21 publications

(12 citation statements)

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“…Several possible explanations are offered with regard to the occurrence of U20 3 within a very restricted portion of the system. 8. The various interactions outlined above have shown no deleterious effects on the physical structure of the mixed carbide alloys.…”

Section: Discussionmentioning

confidence: 99%

An x-ray study of the system uranium monocarbide-uranium dicarbide-beryllium carbide

Burdick¹,

Parker²,

Roth³

et al. 1955

J. RES. NATL. BUR. STAN.

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Mixed car bide preparations within t he system uranium m onocarbide-uranium dicarbideberyllium carbid e were investigated after heating and quenching. X-ray diffraction methods were used to identify the phases found and to determine the degree of interaction. Carbide alloys were studied after treatments at 1,700 0 and 1,900 0 C, and a co nstitutional diagram for the 1,700 0 C level is presented. No ternary compounds we re identified within the system. The limit of solubility of beryllium carbide in uranium monocarbide at 1,700 0 and 1,900 0 C was found to be 20 mole percent and 40 mole percent, respectively. Lattice parameters based on X-ray patterns in the back-reflection region failed to indicate any other interactions, but evidence is presented to ind icate some solid solution among the uranium carbides without lattice parameter change. The room-temperatlll'e stability of uranium sesquicarbide (U2C,), which has been reported by other investigators, was verified. X-ray diffraction data were obtained for this cubic compound, using CuKa radiation.

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Section: Discussionmentioning

confidence: 99%

An x-ray study of the system uranium monocarbide-uranium dicarbide-beryllium carbide

Burdick¹,

Parker²,

Roth³

et al. 1955

J. RES. NATL. BUR. STAN.

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show abstract

“…The temperatures and compositions of invariant reactions in this system have been reported by various authors [5][6][7][8][9][10][11]. A detailed study on the Cu-Th diagram was carried out by Schiltz et al [10], who determined the liquidus/solidus isotherms, and the eutectic reaction by differential thermal analysis (DTA) and metallography.…”

Section: Introductionmentioning

confidence: 98%

Thermodynamic assessments of the Cu–Th and Mo–Th systems

Wang

Guo

Tang

et al. 2008

Journal of Alloys and Compounds

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“…The identification of the two carbides of thorium was reported by Wïlhelm, Chiotti, Snow and Daane (5). The structure of the monocarbide was observed to be face-centered cubic of the sodium chloride type with a^ = 5.325 A, X-ray (9) found no evidence of any transition although it was assumed that ThOg probably transformed from a cubic structure to a pseudo-tetragonal structure upon cooling to room temperature.…”

Section: Rbvibw Op Literaturementioning

confidence: 79%

Electrical resistivity and phase boundaries for thorium-carbon alloys

Korbitz

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S 65. The carbides of uranium and thorium

Cited by 21 publications

References 0 publications

An x-ray study of the system uranium monocarbide-uranium dicarbide-beryllium carbide

An x-ray study of the system uranium monocarbide-uranium dicarbide-beryllium carbide

Thermodynamic assessments of the Cu–Th and Mo–Th systems

Electrical resistivity and phase boundaries for thorium-carbon alloys

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