Mass-spectrometric study of PuCd

Nakajima, Kunihisa; Arai, Yasuo; Yamashita, Toshiyuki

Journal of Physics and Chemistry of Solids, 66(2-4), p.639 - 642, 2005/02

https://doi.org/10.1016/j.jpcs.2004.06.072

PuCd intermetallic compound was prepared by heating pure Pu and Cd metals at about 950K. PuCd was found to be a prototype of CdI by means of powder X-ray diffractometry. Mass-spectrometric experiment was performed in the temperature range of 650-770K. It was found that the vapor pressures of Cd over PuCd+Pu were three to five orders of magnitude lower than those over Cd in this temperature range. From these vapor pressures, Gibbs free energy of formation of PuCd was evaluated.