Advancements in electrorheological fluid: From structural engineering to practical application

Area of Science:

• Materials Science
• Rheology
• Smart Materials

Background:

• Electrorheological (ER) fluids exhibit tunable properties under electric fields.
• Their performance is influenced by microstructural design.
• Advancements are crucial for developing high-performance ER fluids.

Purpose of the Study:

• To provide a comprehensive overview of ER materials and their microstructures.
• To highlight recent advancements in ER material design and selection.
• To discuss the mechanisms, applications, and future trends of ER fluids.

Main Methods:

• Review of multi-dimensional microstructures (0D-3D) including hybrid, core-shell, porous, hollow, and anisotropic architectures.
• Focus on carbon-based ER materials and nanocomposites.
• Elucidation of ER effect mechanisms and polarization processes.

Main Results:

• Designed microstructures enhance yield stress and stability in ER fluids.
• Carbon-based ER materials and nanocomposites show significant performance improvements.
• ER fluids are evolving for applications in vibration damping, human-machine interfaces, microfluidics, and soft robotics.

Conclusions:

• ER fluid technology has advanced significantly through innovative material design and structural strategies.
• ER fluids are key components for next-generation intelligent systems.
• Further research is needed to address existing challenges and unlock future potential in ER smart materials.