Heat capacities of uranium-zirconium alloys from 300 to 1100 K
1989; Elsevier BV; Volume: 167; Linguagem: Inglês
10.1016/0022-3115(89)90436-4
ISSN1873-4820
AutoresYoichi Takahashi, Kazutaka Yamamoto, Tetsuo Ohsato, Hiroshi Shimada, Takayuki Terai, Michio Yamawaki,
Tópico(s)High Temperature Alloys and Creep
ResumoThe heat capacities of four metallic uranium zirconium alloys (Zr at%: 14, 35, 72 and 91) were determined by laser-flash calorimetry from 300 to 1100 K. The heat capacities of uranium-rich alloys showed the normal temperature dependence up to 890 K, while those of zirconium-rich showed a small hump at the temperature region from 650 to 870 K. Above 870 K, heat-capacity anomalies were observed for each alloy sample at respective temperatures corresponding to the phase transitions expected in the uranium-zirconium phase diagram. The heat capacities of U(α)Zr(β) solid solution up to 1100 K were also determined.
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