Structures of the ζ and ζ′ phases in the Ag–Ga system

Transitory Embrittlement of Polycrystalline Silver by Liquid Gallium

“…5). From the crystallographic data reported by Zhang et al, 14) 10 mg of Ga forms a ³150 µm thick ¦ A phase, which is consistent with the maximum thickness observed. Ductility recovery is considered to occur when all the liquid Ga is converted into the intermetallic compound.…”

“…The pattern is very similar to that of the ¦ A phase. 14) This suggests that the Ga atoms easily formed an intermetallic ¦ A phase with Ag, and that the recovery of ductility was caused during the conversion of liquid Ga into the intermetallic compound. …”

“…The specimen was kept in a furnace at 473 K for 24 h. The Cu K¡ radiation was used. The X-ray diffraction pattern of the intermetallic ¦A phase 14) is also shown for comparison. recovered; therefore, in the present case, the grain-boundary penetration of liquid Ga has a negligible effect on the embrittlement.…”

Phase relations of the Ag–Ga–N system

“…Ag 2 Ga was reported having two polymorphic forms: -Ag 2 Ga (high temperature phase) and -Ag 2 Ga (low temperature phase) [12,22]. The crystal structure of the -Ag 2 Ga phase was determined belonging to the hexagonal lattice with space group P6 3 /mmc in our previous work [22].…”

“…Since Weibke and Wiegels [8] reported the first phase diagram of the Ag-Ga system, many investigations have been conducted on this system [9][10][11][12][13][14][15][16][17][18][19][20][21][22][23]. Baren [24] made an evaluation of the phase diagram on the basis of several experimental investigations of the phase equilibria [11][12][13] and gave a partial phase diagram in the Ag-rich region of the Ag-Ga system.…”