Фазовая диаграмма системы Ag-Th

К оглавлению: Другие диаграммы (Others phase diargams)


Ag-Th (Silver-Thorium) M.R. Baren The assessed phase diagram for the Ag-Th system is characterized by three intermediate phases that form congruently from the melt: Ag3Th [43Rau], Ag2Th [ 61Bro], and AgTh2 [55Mur]. Ag2Th is hexagonal and AgTh2 is tetragonal. No crystal structure data have been reported for Ag3Th. The maximum solubility of Th in (Ag) was determined by resistance-capacity tests and found to be 0.09 at.% at the eutectic temperature of 894 C [43Rau]. The eutectic composition between Ag and Ag3Th was placed at 7.7 at.% Th by [ 43Rau]. 43Rau: E. Raub and M. Engel, Z. Electrochem., 49, 487-493 (1943). 55Mur: J.R. Murray, J. Inst. Met., 84, 91-96 (1955). 61Bro: A. Brown, Acta Crystallogr., 14, 860-865 (1961). 65Tho: J.R. Thompson, J. Nucl. Mater., 15, 88-94 (1965). Submitted to the APD Program. Complete evaluation contains 1 figure, 3 tables, and 8 references. Special Points of the Ag-Th System