Abstract
Tin and oxygen contents stabilize the hexagonal (hcp) phase at temperatures where the cubic (bcc) should be the stable structure of zirconium. The transition temperature T[sup hcp[leftrightarrow]bcc] which is 863 C (1136 K) for pure zirconium can be raised to 982 C (1255 K) or 2130 C (2403 K) with convenient Sn or O additions. The univariant phase equilibrium in the ternary system Zr-Sn-O involving the hcp solid solution [alpha]Zr, the intermetallic compound Zr[sub 5]Sn[sub 3] and the oxide [alpha]ZrO[sub 2] was previously studied. A review of the accessible works regarding this ternary system was presented in that paper. The aim of the present work is to outline more accurately the boundaries of the [alpha]Zr field on isothermal sections at 1050 C and 1300 C supported by experimental composition determinations.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
