Results 91 to 100 of about 548,688 (336)
Advanced Engineering Materials, EarlyView.This study designs Ta–Mo–Cr–Ti–Al refractory high‐entropy alloys with a disordered body‐centered‐cubic A2 crystal structure aiming for improved ductility, lower density, and oxidation resistance. Four alloy compositions are identified by thermodynamic calculations.
Kateryna Khanchych +7 more
wiley +1 more source
Advanced Engineering Materials, EarlyView.This work reveals the phase composition and quantitative morphology analysis of precipitation‐hardened Fe32Cu12Ni11Ti16Al29 complex‐concentrated alloy. The precipitates are shown to have a high coherency. Morphology transition between sphere, cuboidal, and elongated morphology is observed. Finally, the overaging behavior is captured using microhardness.
Rostyslav Nizinkovskyi +4 more
wiley +1 more source
On phantom thermodynamics [PDF]
Physics Letters B, 2008 The thermodynamic properties of dark energy fluids described by an equation of state parameter $ =p/ $ are rediscussed in the context of FRW type geometries. Contrarily to previous claims, it is argued here that the phantom regime $ 0$ and $S>0$ in the course of the Universe expansion.
J. A. S. Lima, S. H. Pereira
openaire +2 more sources
Leidenfrost droplet trampolining
Nature Communications, 2021 The classic Leidenfrost phenomenon is familiar, yet its physics is rather complex. Graeber et al. observe the unexpected development of repeated hopping of a droplet trampolining on its own vapor cushion on a hot plate and show under which conditions ...
Gustav Graeber +6 more
doaj +1 more source
Advanced Engineering Materials, EarlyView.Experiments for reinforcing the diffusion bonding plane by the oxide dispersion strengthening effect are presented. Small ceramic particles (0.5 and 50 μm, respectively) are incorporated. Furthermore, ceramic particles help to penetrate stable passivation layers, enabling atomic diffusion across bonding planes. Since a ceramic–metallic interface cannot
Thomas Gietzelt +4 more
wiley +1 more source
, 2018 Recent advances in experimental techniques allow one to measure and control systems at the level of single molecules and atoms. Here gaining information about fluctuating thermodynamic quantities is crucial for understanding nonequilibrium thermodynamic ...
A Bartolotta +75 more
core +1 more source
Advanced Engineering Materials, EarlyView.Fe‐ and Mn‐containing AlSi alloys undergo aluminothermic reaction with Mn oxide in sessile‐drop and crucible experiments forming poor‐wetting Al2O3 while Mn enriches in the alloy. Primary Fe‐containing particles are preferentially attached to the Mn oxide.
Hanka Becker +6 more
wiley +1 more source
Energies, 2019 At Hamburg University of Technology the combination of an open cycle desiccant-assisted air conditioning system and a geothermal system is investigated in the framework of different research projects for several years.
Peter Niemann +3 more
doaj +1 more source
Thermodynamics of Various Entropies in Specific Modified Gravity with Particle Creation
, 2018 We consider the particle creation scenario in the dynamical Chern-Simons modified gravity in the presence of perfect fluid equation of state $p=(\gamma-1)\rho$.
Jawad, Abdul +2 more
core +1 more source