Uranium-platinum system | Zendy

J. J. Park | Zendy; D.P. Fickle | Zendy

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Uranium-platinum system

Author(s) -

J. J. Park,

D.P. Fickle

Publication year - 1960

Publication title -

journal of research of the national bureau of standards section a physics and chemistry

Language(s) - English

Resource type - Journals

eISSN - 2376-5704

pISSN - 0022-4332

DOI - 10.6028/jres.064a.009

Subject(s) - platinum , uranium , eutectic system , intermetallic , allotropy , materials science , phase diagram , metallurgy , phase (matter) , chemistry , alloy , biochemistry , organic chemistry , catalysis

The phase diagram of the uranium-platinum system was constructed from data obtained by thermal analysis, metallographic examination, and X-ray diffraction. The system is characterized by four intermetallic compounds: UPt, formed peritectoidally at 961° C; UPt 2 , formed peritectically at 1,370° C; UPt 3 , melting congruently at 1,700° C; and UPt 5 , formed peritectically at 1,460° C. One eutectic occurs at 1,005° C and 12 a/o platinum, and a second at 1,345° C and 87.5 a/o platinum. The maximum solubilities are 4.5 a/o uranium in platinum and 5 a/o platinum in gamma-uranium. Platinum lowers the gamma-beta uranium transformation to 705° C and the beta-alpha transformation to 589° C.

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