Фазовая диаграмма системы Np-O

К оглавлению: Другие диаграммы (Others phase diargams)


Np-O (Neptunium-Oxygen) Editor A partial Np-O phase diagram was proposed by [87Ric] for the region 0 to 66.7 at.% O, based on X-ray diffraction, DTA, and electron microprobe analysis. The dotted liquidus boundaries are tentative and are based on analogy with the U-O system. In the composition range investigated, only NpO2-x was observed by [ 87Ric]. Other phases reported in the literature are NpO [49Zac], Np2O5 [64Coh], and Np3O8 [58Rob].-P.R.S. 49Zac: W.H. Zachariasen, Acta Crystallogr., 2, 388-390 (1949). 58Rob: L.E.J. Roberts, L.E. Russell, A.G. Adwick, A.J. Walter, and M.H. Rand, Proc. U.N. Intern. Conf. Peaceful Uses of Atomic Energy, Vol. 28, Geneva, 215- 221 (1958). 64Coh: D. Cohen and A.J. Walter, J. Chem. Soc., 3, 2696-2699 (1964). 87Ric: K. Richter and C. Sari, J. Nucl. Mater., 148, 266-271 (1987). 1