Comparative Evaluation of Electrorheological and Magnetorheological Fluids for Micropump Design

Abstract

In this comprehensive research article, we begin with an in-depth comparative assessment between electrorheological (ER) and magnetorheological (MR) fluids, particularly with regard to applications in micropump design. Due to their importance in a variety of technical and biomedical applications, micropumps require highly efficient and adaptable actuation systems. ER and MR fluids have emerged as leading candidates for this purpose, characterized by their unique ability to rapidly modulate their rheological properties in response to external electric or magnetic fields. The article meticulously explains the basic principles, intrinsic properties and key performance indicators associated with each type of fluid. In doing so, it provides readers with a clear understanding of the benefits, drawbacks, and potential use cases of ER and MR fluids. In addition, the discussion is enriched by highlighting key design considerations such as speed of actuation, energy expenditure, susceptibility to environmental conditions and the associated material expenditure. Consequently, this article serves as an invaluable resource, equipping designers and researchers with the knowledge they need to make sound decision-making in the field of micropump design based on the properties and capabilities of these rheological fluids.