Temperature Dependence of the Yield Stress in &gamma;&prime;-L1<SUB>2</SUB> Ordered Ni<SUB>3</SUB>(Al, Ti) Single Crystals Containing Disordered &gamma; Precipitates

Nanostructured Single Crystals Sandwiched between Ordered/Disordered Coily and Rod Brushes

Single crystals of poly(ethylene glycol) (PEG)-b-polystyrene (PS), PEG-b-poly(methyl methacrylate) (PMMA), PEG-b-polycaprolactone (PCL), and polyaniline (PANI)-b-PEG-b-PANI were developed from dilute solutions and thin molten films using self-seeding methodology. The PS and PMMA grafted chains were categorized in disordered nano-brushes; however, the PCL and PANI ones were grouped in ordere...

Temperature dependence of CSl(TI) gamma-ray excited scintillation characteristics

The gamma-ray excited, temperature dependent scintillation characteristics of CsI(Tl) are reported over the temperature range of -100 to +50°C. The modified Bollinger-Thomas and shaped square wave methods were used to measure the rise and decay times . Emission spectra were measured using a monochromator and corrected for monochromator and photocathode spectral efficiencies . The shaped square ...

Temperature and strain-rate dependence of the flow stress of tantalum single crystals in cyclic deformation

Investigation into the temperature dependence of isotropic- nematic phase transition of Gay- Berne liquid crystals

Density functional approach was used to study the isotropic- nematic (I-N) transition and calculate the values of freezing parameters of the Gay- Berne liquid crystal model. New direct and pair correlation functions of a molecular fluid with Gay- Berne pair potential were used. These new functions were used in density functional theory as input to calculate the isotropic- nematic transition den...

Ordered, disordered, and coexistent stable vortex lattices in NbSe2 single crystals.

The peak effect (PE) in the critical current density of type II superconductors has been related to an order-disorder transition in the vortex lattice (VL), but its underlying physics remains a controversial issue. Intrinsic to the PE are strong metastabilities that frequently mask the stationary VL configurations. We follow shaking and thermal protocols in NbSe2 single crystals to access these...