TY - GEN
T1 - ER fluids and MR materials
T2 - Smart materials and structures
AU - Hietanen, Seija
PY - 2003
Y1 - 2003
N2 - Magnetorheological (MR) and electrorheological (ER) fluids belong to a
family of controllable fluids, in which the flow can be controlled through
the application of an electric or magnetic field. The rheological properties
of controllable fluids typically depend on the concentration and density of
particles, particle size and shape distribution, properties of the carrier
fluids, additional additives, applied field, temperature and other factors.
The interdependency of these factors is very complex, yet it is important in
establishing methodologies to optimise the performance of these fluids for
particular applications. Unlike ER fluids, MR fluids offer large variations
in their rheological properties and their insensitivity to impurities and
they require less energy consumption. Recently there has also been interest
in creating controllable materials based on elastomers that are loaded with
electrically conductive particles. Also a new way of using MR fluids, in
which the fluid is contained in an absorbent matrix has been developed. This
article gives a short overview of the field of ER fluids and MR materials,
their basic properties and some application developments.
AB - Magnetorheological (MR) and electrorheological (ER) fluids belong to a
family of controllable fluids, in which the flow can be controlled through
the application of an electric or magnetic field. The rheological properties
of controllable fluids typically depend on the concentration and density of
particles, particle size and shape distribution, properties of the carrier
fluids, additional additives, applied field, temperature and other factors.
The interdependency of these factors is very complex, yet it is important in
establishing methodologies to optimise the performance of these fluids for
particular applications. Unlike ER fluids, MR fluids offer large variations
in their rheological properties and their insensitivity to impurities and
they require less energy consumption. Recently there has also been interest
in creating controllable materials based on elastomers that are loaded with
electrically conductive particles. Also a new way of using MR fluids, in
which the fluid is contained in an absorbent matrix has been developed. This
article gives a short overview of the field of ER fluids and MR materials,
their basic properties and some application developments.
KW - magnetorheological fluid
KW - magnetorheological material
KW - electrorheological fluid
KW - applications
M3 - Conference article in proceedings
SN - 951-38-6278-X
T3 - VTT Symposium
SP - 33
EP - 50
BT - Smart materials and structures
PB - VTT Technical Research Centre of Finland
CY - Espoo
Y2 - 4 December 2002 through 4 December 2002
ER -