ﻻ يوجد ملخص باللغة العربية
Kinetics of niobium and titanium carbide precipitates in iron has been simulated with cluster dynamics. The simulations, carried out in austenite and ferrite for niobium carbides, respectively in austenite for titanium carbide, were analyzed for dependency on temperature, solute concentration, and initial cluster distribution. The results are presented for different temperatures and solute concentrations and compared to available experimental data. They show little impact of initial cluster distribution beyond a certain relaxation time and that highly dilute alloys with only monomers present a significantly different behavior than less dilute alloys or alloys with different initial cluster distribution.
We analyzed micrometer-scale titanium-niobium-oxide prototype memristors, which exhibited low write-power (<3 {mu}W) and energy (<200 fJ/bit/{mu}m2), low read-power (~nW), and high endurance (>millions of cycles). To understand their physico-chemical
Here we report the observation of extraordinary superconductivity in a pressurized commercial niobium-titanium alloy. We find that its zero-resistance superconductivity persists from ambient pressure to the pressure as high as 261.7 GPa, a record hig
The critical resolved shear stress of an Al 4 wt. % Cu alloy containing a homogeneous distribution of $theta$ precipitates was determined by means of dislocation dynamics simulations. The size distribution, shape, orientation and volume fraction of t
A unified model of molecular and atomistic spin dynamics is presented enabling simulations both in microcanonical and canonical ensembles without the necessity of additional phenomenological spin damping. Transfer of energy and angular momentum betwe
The existence of semiconductors exhibiting long-range ferromagnetic ordering at room temperature still is controversial. One particularly important issue is the presence of secondary magnetic phases such as clusters, segregations, etc... These are of