Enhanced microactuation with magnetic field curing of magnetorheological elastomers based on iron-natural rubber nanocomposites

M. P. Vasudevan, P. M. Sudeep, I. A. Al-Omari, Philip Kurian, P. M. Ajayan, T. N. Narayanan, M. R. Anantharaman

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

The incorporation of nanoparticles of iron in a natural rubber matrix leads to flexible magnetorheological (MR) materials. Rod-shaped MR elastomers based on natural rubber and nanosized iron have been moulded both with and without the application of an external magnetic field during curing. These MR elastomer rods and filler material were characterized by X-ray powder diffraction, scanning electron microscopy and transmission electron microscopy. Magnetic properties were investigated by using vibrating sample magnetometry. Microactuation studies were carried out by employing a laser Doppler vibrometer. It is seen that microactuation of field cured samples have been enhanced by two times when compared with that of zero field cured samples. The effect of alignment of magnetic particles during field-assisted curing was also studied by using a dynamic mechanical analyzer. A plausible model is put forwarded to explain the observed enhancement of actuation for field cured samples.

Original languageEnglish
Pages (from-to)689-694
Number of pages6
JournalBulletin of Materials Science
Volume38
Issue number3
Publication statusPublished - Jun 1 2015

    Fingerprint

Keywords

  • Mechanical testing
  • Nanocomposites
  • Smart materials
  • Vibration

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials

Cite this

Vasudevan, M. P., Sudeep, P. M., Al-Omari, I. A., Kurian, P., Ajayan, P. M., Narayanan, T. N., & Anantharaman, M. R. (2015). Enhanced microactuation with magnetic field curing of magnetorheological elastomers based on iron-natural rubber nanocomposites. Bulletin of Materials Science, 38(3), 689-694.