In situHigh-Energy X-Ray Diffraction Study of the Local Structure of Supercooled Liquid Si

Density and structure of undercooled liquid titanium

“…Although there are no significant differences among the density values at the melting temperature, the deviations among these results become increasingly large when the temperature deviates from the melting temperature for either the superheated state or the undercooled state. In terms of the above analysis, the present results agree well with Ishikawa's results (line 3) and the data in [13] (line 4). Accordingly, it can be concluded that our molecular dynamics simulation provides reasonable density data for liquid Ti, especially for a highly undercooled state.…”

“…In Smithells Metals Reference Book [23], only the data for the density of liquid Ti above the melting temperature are given. The four previously obtained densities at the melting temperature are as follows: Rhim's result is 4.208 g/cm 3 , Paradis's result is 4.10 g/cm 3 , Ishikawa's result is 4.17 g/cm 3 , and the result in [13] is 4.13 g/cm 3 . The present value is 4.14 g/cm 3 .…”

“…However, it is extremely difficult to obtain detailed structural information because of its metastable characteristics and rapid atom diffusion. Recently, an experimental investigation of the liquid structures of metals was performed by combining containerless processing with X-ray scattering, synchrotron X-ray diffraction, and neutron diffraction methods [10][11][12][13]. For liquid Ti, Lee et al [14] measured the structure factor of an electrostatically levitated Ti droplet at 282 K undercooling by synchrotron X-ray diffraction, and Holland-Moritz et al [15] determined the structure factor of liquid Ti at about 200 K undercooling by neutron scattering combined with an electromagnetic levitation technique.…”

Structures at Glassy, Supercooled Liquid, and Liquid States in La-Based Bulk Metallic Glasses

“…It is found that the coordination number of about 15.1 ± 0.1 for the La 62 Al 14 Ag 4 alloys. The S(q) data recorded at the supercooled liquid region can be well described by the Debye theory.…”

Illuminating liquid polymorphism in silicon

“…A study of the electronic structure of the relevant amorphous solids (15,19) would serve as a useful reference in further investigations. It would also be exciting to perform similar experiments starting with amorphous silicon (20), which could also probe the glass transition in LDL (14), and with sufficient control on the temperature range to which the sample is heated, also resolve questions concerning the transition temperature for the liquid-liquid transition (12). The probe exploited by Beye et al thus promises significant advances in the experimental investigation of liquidliquid transitions.…”