Gallium-Based Liquid Metal Composites and the Continuous Forming Methods

Due to the dual nature of metal and fluid, gallium-based liquid metals with a low melting point at or around room temperature have gained growing interest recently. Although more properties of gallium are developed, their intrinsic properties are not able to meet the increasing requirement from the scientific and industrial community. To broaden its applications, many kinds of gallium-based liquid metal composites are prepared and applied in the cutting-edge fields like biomedical engineering, flexible robots, heat management, and so on. To summarize the latest progress and promote development, this review summarizes the recent progress of liquid metal composites and the continuous forming methods recently, including the physical and chemical properties of gallium-based liquid metal, composites prepared through physical doping and surface modification, and the continuous forming approaches. Further outlook including expectations and challenges of gallium-based liquid metal composites is also presented.