Purdue Researchers Invent Ferropaper, an Inexpensive Ferrous Material

March 2, 2010
Purdue researchers invent Ferropaper, an inexpensive ferrous material.
Purdue University, www.purdue.edu

Researchers at Purdue University, West Lafayette, Ind., impregnated a piece of ordinary paper with a mix of mineral oil and nanoparticles of iron oxide. The result, dubbed Ferropaper, can be moved using a magnetic field, possibly making it useful in speakers, tweezers capable of moving a single-cell, low-cost micromotors for surgical instruments, and other applications. To make Ferropaper more durable, the researchers coated it with a biocompatible plastic film to make it water resistant and prevent the mineral oil and iron oxide mix from evaporating. The film also improves mechanical properties such as stiffness, strength, and elasticity.

Researchers made a small cantilever out of the new paper which moved or vibrated in a magnetic field. This could bring inexpensive alternatives to current cantilever actuators made from silicon, an expensive process that requires clean-room facilities.

Sponsored Recommendations

June 6, 2025
In the rapidly evolving landscape of industrial manufacturing, reliability, productivity, and worker safety take precedence. However, traditional connectivity approaches often...
June 6, 2025
Amidst the rapid evolution of electronics manufacturing, reliability, productivity, and worker safety remain paramount concerns. Yet, traditional connectivity methods often falter...
June 6, 2025
While many within the industrial manufacturing sector grasp the importance of smart manufacturing for optimizing processes, boosting productivity, and future-proofing operations...
June 6, 2025
For electronics manufacturers grappling with formidable challenges, navigating the path to success requires adapting to the dynamic landscape of the industry. How can electronics...

Voice your opinion!

To join the conversation, and become an exclusive member of Machine Design, create an account today!