Interfacial adhesion between the iron fillers and the silicone matrix in magneto-rheological elastomers at high deformations

Tobias Pössinger; Christian Bolzmacher; Laurence Bodelot; Nicolas Triantafyllidis

doi:10.1117/12.2016532

17 May 2013 Interfacial adhesion between the iron fillers and the silicone matrix in magneto-rheological elastomers at high deformations

Tobias Pössinger, Christian Bolzmacher, Laurence Bodelot, Nicolas Triantafyllidis

Author Affiliations +

Proceedings Volume 8763, Smart Sensors, Actuators, and MEMS VI; 87631Y (2013) https://doi.org/10.1117/12.2016532
Event: SPIE Microtechnologies, 2013, Grenoble, France

Abstract

This work investigates the interfacial adhesion between the iron fillers and the silicone matrix in magneto-rheological elastomers at high deformations. Carbonyl iron powder, composed of mechanically soft spherical particles with a median size of 3.5 μm and a volume concentration of 3.5%, was mixed in a soft silicone matrix (Shore 00-20); the compound was then degassed and cured under temperature. The presence of a homogeneous magnetic field of 0.3 T during the curing process allowed the formation of particle chains. Tensile tests of these samples under scanning electron microscope showed interfacial slipping and debonding between the two phases. To improve interfacial adhesion, a silane primer was applied to the iron particles, following two different procedures, before the mixing and crosslinking process, thus giving two additional types of samples. In tensile testing lengthwise to the particle alignment, with engineering strains up to 150%, the structural responses of the different types of samples were compared. An enhanced adhesion of the iron fillers to the silicone matrix resulting in a reinforced matrix and increased tensile strength during the first loading path could be observed. Furthermore, scanning electron microscope images show that a more elaborated particle-matrix interface was obtained with the primer additive.

Citation Download Citation

Tobias Pössinger, Christian Bolzmacher, Laurence Bodelot, and Nicolas Triantafyllidis "Interfacial adhesion between the iron fillers and the silicone matrix in magneto-rheological elastomers at high deformations", Proc. SPIE 8763, Smart Sensors, Actuators, and MEMS VI, 87631Y (17 May 2013); https://doi.org/10.1117/12.2016532

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available