Results 71 to 80 of about 5,766 (227)
Undercooling measurement in a low-gravity containerless environment [PDF]
, 1981 A technique is described for measuring the amount of undercooling for samples processed in a low-gravity containerless environment. The time of undercooling is determined by measuring the time of cooling before nucleation and recalescence by two infrared
Robinson, M. B.
core
Building parameter influence on overheating and undercooling risks in the Mediterranean social housing stock of southern Spain [PDF]
E3S Web of ConferencesIn recent years, there has been a notable rise in temperatures, along with an escalation of heatwaves as a consequence of global warming. This phenomenon conspicuously impacts summer and winter, leading to modifications in the building energy balance ...
Calama-González Carmen María +2 more
doaj +1 more source
Dendritic Growth at Very Low Undercoolings [PDF]
Europhysics Letters (EPL), 1995 We have performed numerical simulations of dendritic growth at very low undercoolings in two spatial dimension using a phase-field model. In this regime of growth, the dendrites present sharp corners in the tip region while the trailing region is parabolic, and the corresponding side-branching structures resemble the shape of the tip. The scaling $vρ^2\
Mozos, Jose-Luis, Guo, Hong
openaire +2 more sources
Proceedings in Applied Mathematics and Mechanics, Volume 26, Issue 4, December 2026.ABSTRACT This work presents a conforming finite‐element scheme for non‐isothermal phase‐field systems coupled to the incompressible Navier–Stokes equations. The proposed numerical scheme preserves entropy production and total energy conservation exactly by variable transformations using entropy as the main variable instead of temperature.
Aaron Brunk, Dennis Höhn
wiley +1 more source
Journal of Materials Research and TechnologyEmploying molten glass purification and cyclic overheating technologies, a Cu60Ni40 alloy was modified by introducing trace amounts of Co element. Through this process, we aimed to understand how the addition of Co element influences the microstructure ...
Xiaolong Xu +3 more
doaj +1 more source
Materials & Design, 2018 The thermophysical properties of hypereutectic Ti63.64Fe36.36 alloy at both normal and undercooled states, including density, volume expansion coefficient, ratio of specific heat to emissivity were measured by electrostatic levitation (ESL) method ...
L.Y. Du +5 more
doaj +1 more source
Advanced Engineering Materials, Volume 28, Issue 17, 9 September 2026.A combined finite element and phase‐field approach predicts the evolution of microstructure during the directional solidification of Ni‐based superalloys. The model reveals how withdrawal rate, temperature gradient, and wall thickness control the dendrite spacing, highlighting the strong effect of surface regions in thin sections where dendrite growth ...
Sean Böhm +3 more
wiley +1 more source
Entropy Decoding the Fundamental Law of Phase Competition in Glass Formation
Advanced Science, Volume 13, Issue 49, 3 September 2026.We validate the integration of intermetallic and eutectic phases as initial phases for composition design. The phase competition mechanism in glass formation is quantitatively clarified based on the melting entropy of competing phases. Glass‐forming ability is modulated by tuning phase competition via the melting entropy of initial phases.
Benke Huo +7 more
wiley +1 more source
Undercooling of materials during solidification in space [PDF]
, 1976 A theoretical research program was undertaken on the under cooling and solidification of materials under variable external field conditions. A catalog of theories and models of nucleation of solid phases in the melt is provided, as is a discussion of the
Miller, R. I.
core
Applied Sciences, 2019 Bio-based glass-forming materials are now considered for thermal energy storage in building applications. Among them, Xylitol appears as a biosourced seasonal thermal energy storage material with high potential.
Marie Duquesne +2 more
doaj +1 more source