Compression sensors constructed from ferromagnetic particles embedded within soft materials

Justin K. Ruffalo; Jonathan D. Miller; Cory J. Berkland

doi:10.1557/s43579-021-00010-6

Compression sensors constructed from ferromagnetic particles embedded within soft materials

Justin K. Ruffalo
, Jonathan D. Miller
, Cory J. Berkland

Research output: Contribution to journal › Article › peer-review

3 Scopus citations

Abstract

Ferromagnetic fillers were incorporated within polydimethylsiloxane (PDMS) at concentrations of 0.1 wt% and 1 wt%. Deformation was detected via magnetic field response during compression tests. Testing of five of the six ferromagnetic fillers in PDMS revealed that 1 wt% was the minimum filler concentration required to detect compression via the magnetic field response. Settling of neodymium particles was evident; thus, Stokes’ Law was used to investigate setting velocity of the particles. Overall, ferromagnetic fillers in PDMS cylinders provided a quantitative sensor of force and material displacement suggesting utility as sensors embedded in larger soft material constructs.

Original language	English
Pages (from-to)	94-99
Number of pages	6
Journal	MRS Communications
Volume	11
Issue number	2
DOIs	https://doi.org/10.1557/s43579-021-00010-6
State	Published - Apr 2021

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title = "Compression sensors constructed from ferromagnetic particles embedded within soft materials",

abstract = "Ferromagnetic fillers were incorporated within polydimethylsiloxane (PDMS) at concentrations of 0.1 wt\% and 1 wt\%. Deformation was detected via magnetic field response during compression tests. Testing of five of the six ferromagnetic fillers in PDMS revealed that 1 wt\% was the minimum filler concentration required to detect compression via the magnetic field response. Settling of neodymium particles was evident; thus, Stokes{\textquoteright} Law was used to investigate setting velocity of the particles. Overall, ferromagnetic fillers in PDMS cylinders provided a quantitative sensor of force and material displacement suggesting utility as sensors embedded in larger soft material constructs.",

author = "Ruffalo, \{Justin K.\} and Miller, \{Jonathan D.\} and Berkland, \{Cory J.\}",

note = "Publisher Copyright: {\textcopyright} 2021, The Author(s), under exclusive licence to The Materials Research Society.",

year = "2021",

month = apr,

doi = "10.1557/s43579-021-00010-6",

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T1 - Compression sensors constructed from ferromagnetic particles embedded within soft materials

AU - Ruffalo, Justin K.

AU - Miller, Jonathan D.

AU - Berkland, Cory J.

PY - 2021/4

Y1 - 2021/4

N2 - Ferromagnetic fillers were incorporated within polydimethylsiloxane (PDMS) at concentrations of 0.1 wt% and 1 wt%. Deformation was detected via magnetic field response during compression tests. Testing of five of the six ferromagnetic fillers in PDMS revealed that 1 wt% was the minimum filler concentration required to detect compression via the magnetic field response. Settling of neodymium particles was evident; thus, Stokes’ Law was used to investigate setting velocity of the particles. Overall, ferromagnetic fillers in PDMS cylinders provided a quantitative sensor of force and material displacement suggesting utility as sensors embedded in larger soft material constructs.

AB - Ferromagnetic fillers were incorporated within polydimethylsiloxane (PDMS) at concentrations of 0.1 wt% and 1 wt%. Deformation was detected via magnetic field response during compression tests. Testing of five of the six ferromagnetic fillers in PDMS revealed that 1 wt% was the minimum filler concentration required to detect compression via the magnetic field response. Settling of neodymium particles was evident; thus, Stokes’ Law was used to investigate setting velocity of the particles. Overall, ferromagnetic fillers in PDMS cylinders provided a quantitative sensor of force and material displacement suggesting utility as sensors embedded in larger soft material constructs.

UR - https://www.scopus.com/pages/publications/85100861116

U2 - 10.1557/s43579-021-00010-6

DO - 10.1557/s43579-021-00010-6

M3 - Article

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VL - 11

SP - 94

EP - 99

JO - MRS Communications

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IS - 2

ER -

Compression sensors constructed from ferromagnetic particles embedded within soft materials

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