One of the most important nonlinear rheological phenomena in flowing polymeric materials is the stress overshoot under start-up shear at sufficiently high shear rates γ̇, i.e., γ̇ > τd–1, where τd is ...

AlGaN strain strategies For AlGaN UV LEDs, which are typically grown on AlN templates, AlGaN strain-modulation strategies aim to mitigate the compressive stress. This can be realised by adjusting the ...

Co/Pt multilayer films were sputter-deposited onto glass substrates with a negative bias voltage applied during sputtering of either Co or Pt layers, and the perpendicular magnetic anisotropy and ...

Mechanics of materials characterization of lead-free solder mechanical properties and stress strain curve properties are needed for applications in finite element analysis. In this study, tensile ...

where s 0.01 is the 0.01% proof stress. It is important to explain that the n value is obtained on the basis of the 0.01% and 0.2% proof stresses. The fitting can be seriously inaccurate above this ...

The team will use 3-D printing to create material with the predicted structures and do a series of tests on them to see if they behaving as expected. In the future, the findings could improve a ...

The heteroepitaxy of high-quality aluminum nitride (AlN) with low stress is essential for the development of energy-efficient deep ultraviolet light-emitting diodes (DUV-LEDs). In this work, we ...

2.6 Ogden model Proposed in 1972 by Ogden 15, 16, this is also a phenomenological model and is based on principal stretches instead of invariants. The model is able to capture upturn (stiffening) of ...