Nanoporous metals made by dealloying 1, 2, 3 take the form of monolithic bodies consisting of an interconnected network of nanoscale ‘ligaments’ in a polycrystalline microstructure with typically 10 ...

A research team co-led by materials scientists from City University of Hong Kong (CityU) has recently discovered a new mechanism to increase the strength and ductility of a high-entropy alloy, two ...

WEST LAFAYETTE, Ind. – Something as simple as an electric field could soon make wartime missiles or drinking mugs easier to produce and more resilient for fracture. Items such as drinking mugs, ...

The tensile behavior of composites is also different from that of metals in the 'plastic deformation' region of the stress/strain curve. The diagram shows the curve for a uniaxial sample tested along ...

When a sample is tested to fracture it may fail either by Brittle Fracture or by Ductile Fracture. In ductile fracture, considerable plastic deformation before the material fractures. The fracture ...

Illustration showing the strain response to an applied stress for (a) purely elastic material (b) purely viscous material (c) viscoelastic material. In this method, emphasis is on the compliance and ...

Understanding what makes a soft material fail when stressed is a key part of addressing major engineering challenges, such as landslide prevention or creating better industrial materials. Now, a new ...

Many complex fluids, such as surfactant mesophases, network forming polymers, emulsions etc. do not flow until the applied stress crosses a certain critical value, called the yield stress. Materials ...