The market for magnetorheological fluids has witnessed significant development and growth since these “smart” fluids were discovered more than 70 years ago. Their usage has increased in varied applications, but like many newer technologies, some practical challenges still exist. Research indicates that using MR fluids alongside lubricating greases may help repel some of these negative forces.
Discovered by Jacob Rabinow in 1948 at the United States National Bureau of Standards (now the National Institute of Standards and Technology), MR fluids change their rheological behavior drastically—and reversibly—upon application of a magnetic field, said V.K. Sukhwani, a professor in the Department of Mechanical Engineering at Ujjain Engineering College in the central Indian state of Madhya Pradesh.