The Sn−Zn (Tin-Zirconium) system

Experimental partial phase diagram of the Zr–Sn–Fe system

“…In addition, one ternary compound was observed (h-phase) and the terminal solid solutions Zr(a) and Zr(b). In fact, the observed Zr(b) phase in the samples was actually the transformed Zr(bt) hexagonal phase, that corresponds to a Widmänstatten-type transformation (diffusion assisted) when cooling from the Zr(b) high temperature phase, and has an average composition very close to the high temperature Zr(b) [11].…”

“…The Zr 4 Sn is an intermetallic compound reported in the Zr-Sn system. This cubic stoichiometric compound is stable up to the peritectoid Zr(b) + Zr 5 Sn 3 « Zr 4 Sn decomposition temperature at 1327°C [11]. On the other hand, the hexagonal line-compound Zr 5 Sn 3 is stable up to the congruent melting temperature at 1988°C [11].…”

“…There is not complete experimental evidence about the process of formation of this phase. Abriata et al in their review of the binary Zr-Sn system [11] mention it as a 'probable intermediate phase' of the Ti 5 Ga 4 type (first reported by Rossteutscher and Schubert [14]). On the other hand, Kwon and Corbett [16] analyzed the Zr 5 Sn 3 -Zr 5 Sn 4 binary region by means of X-ray diffraction studies and they proposed that these two phases are stoichiometric compounds at low temperatures (37.5% Sn content for Zr 5 Sn 3 and 44.4% Sn content for Zr 5 Sn 4 ) and that they form a solid solution of the Zr 5 Sn 3+x type at high temperatures (T > 1100°C).…”

Isothermal section of the Ti–Zr–Sn ternary system at 473K

“…There are critical evaluations published: the Zr-Sn system was assessed by Abriata et al [8] in 1983 and those on the titanium binary systems Zr-Ti [9] and Ti-Sn [10] were published by Murray in 1987. The Zr-Sn system was also experimentally studied by Roberti [11] in 1992 where some modifications were suggested related to the conditions of Abriata et al [8]. Structural data for the intermetallic compounds in the three binary systems are given in Table 1.…”

Characterizing High-Temperature Deformation of Internally Heated Nuclear Fuel Element Simulators

“…When the temperature at the sheath bottom on the tensile strain side attained 720°C, the sagging rate rapidly shifted to 6 μm/second (point B in Figure 1). It should be noted that the observed creep rate increase occurred at a temperature below the Zircaloy sheath material temperature threshold for the transition from the alpha-to beta-phase specified in Abriata et al [1] as 890°C. The sag continued at this rate for about 200 seconds into the dwell region and then a dramatic increase in the rate, to 24 μm/second, is exhibited at point C in Figure 1.…”