Solving mysteries of metallic glass at the nanoscale

The matter of how metals deform or respond to external stresses has been extensively studied among metallurgists for centuries. When it comes to conventional metals—the crystalline kind with atoms that line up in neat patterns—the ...

Metamaterials and origamic metal-organic frameworks

Origami is a paper folding process usually associated with child's play mostly to form a paper-folded crane, yet it is, as of recently a fascinating research topic. Origami-inspired materials can achieve mechanical properties ...

UN maps out decarbonization of polluting construction sector

The construction sector—the most polluting and difficult to decarbonize—must build less, use more sustainable materials and clean up conventional ones to slash its emissions, the United Nations said on Tuesday.

Optically controlled metasurfaces for dynamic dual-mode modulation

Dynamic control of terahertz (THz) waves at will with an ultra-compact device is important for THz technologies in biomedical imaging, telecommunications, detection, and beyond. However, tunable THz devices made of conventional ...

New strategy to effectively prevent component failures in metals

When a metal is stressed far below its yield strength at elevated temperatures, a process known as creep can occur. Creep, the time-dependent deformation of materials, is responsible for a great number of component failures ...

Unusual superconductivity observed in twisted trilayer graphene

The ability to turn superconductivity off and on with a literal flip of a switch in so-called "magic-angle twisted graphene" has allowed engineers at Caltech to observe an unusual phenomenon that may shed new light on superconductivity ...

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