Nanoengineering of Metallic Glasses

Abstract

Metallic glasses with nanostructures recently have attracted extensive attention in various fields due to their unique functional properties. The amorphous atomic structure and nanoscale forms are the fundamental features of these nanomaterials. Herein, the current nanoengineering approaches for fabricating the metallic glasses with nanostructures such as thermoplastic forming, ultrasonic plasticity forming, dealloying, etc., are systematically summarized and the morphology and composition of the various types of metallic glasses with nanostructures that are formed by nanoengineering are classified. In addition, the functional properties and applications of metallic glasses with nanostructures are focused on. On the basis of this comprehensive review, some options for optimizing nanoengineering and anticipating the potential functional applications of metallic glasses with nanostructures are proposed.

Polymetallic amorphous materials: research progress in synthetic strategies and electrocatalytic applications

“…16 Ma et al introduced methods for forming metallic glasses with nanostructures, including thermoplastic forming (TPF), ultrasonic plastic forming (UPF), and dealloying. 3 Although amorphous alloys can serve as electrocatalysts for reducing the overpotential, enhancing the catalytic activity and corrosion resistance, etc., compared with crystalline materials, the progress of amorphous alloys is still limited and a detailed introduction of their applications in electrocatalysis, as well as a discussion of simpler and controllable synthesis methods is lacking. Therefore, this review focuses on the application of amorphous alloys in electrocatalytic reactions, and sorts out the recent synthesis strategies of amorphous alloys to obtain better-performing materials.…”

“…Amorphous alloys, also known as metallic glasses (MGs), are materials with long-range disordered atomic structures compared to crystalline alloys 2 (Fig. 1), boasting remarkable properties 3 such as thermoplasticity, ultrasonic plasticity, high strength and toughness, corrosion resistance, and wear resistance. 4,5 Therefore, the utilization of amorphous materials is progressively expanding into various practical applications, including fundamental components, medical apparatus, and aerospace materials.…”

Dissolvable templates to prepare Pt-based porous metallic glass for the oxygen reduction reaction

“…27,28 Therefore, various micro/nanostructures can be prepared on the surface of MGs. 29,30 Moreover, owing to its amorphous nature, dealloying will occur when electrochemical experiments are performed, [31][32][33] thus exposing more active sites on the surface. 34 Numerous MGs formed on the micro/ nanostructures by TPF have been reported, such as nanowires, 35 precision gratings, 36 and precision gears.…”