Transitory Embrittlement of Polycrystalline Silver by Liquid Gallium

Abstract

The phenomenon of embrittlement of polycrystalline silver (Ag) by liquid gallium (Ga) is known as liquid metal embrittlement (LME). An investigation was performed to determine the effects of holding the solid metal in contact with liquid Ga on the embrittlement. Solid Ag specimens in contact with liquid Ga were placed in a furnace at 308573 K for different time periods before testing at 308 K. The specimens undergo severe embrittlement when the holding time is short, whereas ductility is recovered when the holding time is long. The duration of brittleness decreases with increase in furnace temperature, and it is proportional to the amount of Ga on the surface. The brittle to ductile transition is considered to occur during the formation process of an intermetallic Ga and Ag compound.

Size- and composition-controlled intermetallic nanocrystals via amalgamation seeded growth

“…2, B and C), leading to the accumulation of liquid Ga on the NC surface without epitaxial constraints (35)(36)(37). Quick doping kinetics can be attributed to the fast thermolysis of the Ga-amide precursor and the large diffusion coefficient of liquid Ga (38), combined with the fact that Ga-doped Ag is a solid solution within the face-centered cubic (fcc) Ag phase. By 2 min of reaction time (Fig.…”

Recent Development of Liquid Metal‐Based Functional Materials Combined with Common Transition Metals

“…It is worth noting that after the LMs and the metal contact and infiltrate, if there is an oxide layer on the surface of the LMs, [133] this oxide layer may be destroyed under the final embrittlement, so the internal LMs will quickly diffuse on the solid metal surface. [129,134,135] In the study of Jin-Lei et al, [91] they connected an external current to the copper substrate to induce a continuous flow of LMs on the copper substrate, accelerate the formation of CuGa 2 , and form a reactive wetting coating on the interface between the LMs and the copper. LMs were placed on the copper foil base connected to the negative electrode, and the sodium hydroxide solution was connected to the positive electrode.…”