ISSN:
1573-8205
Source:
Springer Online Journal Archives 1860-2000
Topics:
Energy, Environment Protection, Nuclear Power Engineering
,
Physics
Notes:
Abstract Preparations of the intermetallic compounds UAl2, UAl3 and UAl4 were obtained by high-temperature interdiffusion of aluminum and dispersed uranium, prepared by decomposing its hydride then grinding the product and heating the powder obtained. Debye x-radiographic investigation showed that the preparations obtained consisted of one phase and the parameters of their structures were close to those published earlier. The amount of hydrogen evolved during separate solution of the preparations and the starting components in a specially selected solvent (mixture of HCl, H3PO4, Na2SiF6, H2PtCl5 and CuSO4· 5H2O) Indicated that the preparations had the compositions; UAl1.997, UAl2.994 and UAl3.997. The differences in the heats of solution of these preparations and appropriate mixtures of their components gave die heats of formation (−ΔH°293)UAl2, UAl3 and UAl4, which were 22.3±2.4, 25.2±2.2 and 31.2±3.1 kcal/mole, respectively.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01587536
