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Metastable Crystalline AuGe Catalysts Formed During Isothermal . . . We observe the formation of metastable AuGe phases without quenching, during strictly isothermal nucleation and growth of Ge nanowires, using video-rate lattice-resolved environmental transmission electron microscopy
Structure Study of Liquid Eutectic Alloys: AuSi and AuGe Study the surface structure of liquid eutectic alloys AuSi and AuGe with surface x-ray scattering techniques such as specular x-ray scattering and off-specular diffuse scattering AuSi and AuGe liquid samples are prepared and their surfaces have been cleaned and studied in situ in UHV chamber
Formation and stabilization of single-crystalline metastable AuGe . . . In our nanowire geometry, monocrystalline metastable AuGe alloy NW segments are produced by annealing, subsequent slow (near equilibrium) cooling, and crystallization, provided that Ge is incorporated to sufficiently high concentrations in the molten AuGe alloy drops at the NW tip
Growth and motion of liquid alloy droplets of Au on Ge(110) Figure 8: Photograph of Au-Ge alloy islands with trails on Ge(110) observed with optical microscope after the sample was removed from the UHV system; the crack in the sample occurred after the experiments
Gold-Germanium (AuGe) Alloy: The Perfect Eutectic Contact Solution The AuGe eutectic alloy is widely used in the semiconductor industry for forming reliable ohmic contacts Typically composed of approximately 88% gold and 12% germanium, this alloy melts at a much lower temperature (around 361 C) than pure gold or germanium
Eutectic Combinations as a Pathway to the Formation of SubstrateBased . . . Pairs of immiscible elements with deep eutectics are used to synthesize periodic arrays of heterodimers and hollowed metal nanocrescents In the devised route, substrate-immobilized Au or Ag nanostructures act as heterogeneous nucleation sites for Ge adatoms
Eutectics and the formation of amorphous alloys - Nature In alloys of intermediate type we propose that there exists a novel transforma tion, the inverse eutectic transition, which is a special case of a peritectoid transformation (two solid phases
Measurements of Interdiffusion Coefficients in Liquid AuGe Alloy We therefore investigated interdiffusion coefficients in the liquid state of AuGe and AuSi alloy, which remarkably have the deep eutectic temperature The diffusion experiments using a shear cell device were performed in the temperature range from 686 K to 1073 K
Eutectic Alloy Systems - University of São Paulo Because the eutectic is the lowest melting composition in the alloy, it can often cause problems during hot working and heat-treating opera-tions
liquids. seas. harvard. edu Achievements AuSi and AuGe eutectic alloys have been recently studied at ChemMat-CARS, APS, Argonne, IL The results were reported at APS User's Meeting 2004, NSLS User's Meeting 2004 and are being prepared for publication