Influence of Magnetic Field and Temperature on Rheological Behavior of Magnetorheological Gel

Sun, Mingzhu; Li, Xiangdong; Zhou, Zhou; Deng, Ran; Chen, Xu; Wang, Jiong; Mao, Runsong

doi:10.3390/ma15228070

Cited by 2 publications

(1 citation statement)

References 38 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Wang et al [ 11 ] investigated the relationship between the viscosity of base oils with different kinematic viscosities and the zero-field viscosity of lithium-based composite magnetorheological greases, and found that higher kinematic viscosity of the base oil leads to higher zero-field viscosity and improved sedimentation stability. In recent years, the use of clay minerals as additives [ 12 , 13 , 14 ] has been widely applied in magnetorheological materials, and sepiolite has gradually attracted the attention of scientists. Maurya et al [ 15 ] introduced goethite as an additive to water-based magnetorheological suspensions, resulting in the formation of a clay gel-like structure.…”

Section: Introductionmentioning

confidence: 99%

Effect of Sepiolite on the Field-Dependent Normal Force of Magnetorheological Grease

Wang

et al. 2023

Materials

Self Cite

View full text Add to dashboard Cite

In order to investigate the influence of sepiolite minerals on the normal force of magnetorheological grease (MRG), a mixed sample (ALCH) on the basis of preparing an aluminum–lithium-based magnetorheological grease (base sample ALC), containing sepiolite was further prepared. The field-dependent normal force of the two samples was tested using a rotational rheometer, considering conditions such as magnetic field, time, strain amplitude, frequency, and temperature, and the results were compared. The results indicate that sepiolite limits the field dependent normal force of the magnetorheological grease under steady state shear, and is unaffected by magnetic field, time, temperature, and shear rate. Sepiolite has minimal impact on the transient response of the magnetorheological grease. Under oscillatory shear, the magnetic field is an important factor influencing the field-dependent normal force response of the sepiolite-magnetorheological grease (ALCH). At low magnetic fields, the field-dependent normal force of the sepiolite-containing sample (ALCH) is greater than that of the base sample (ALC), while this relationship is reversed at high magnetic fields, unaffected by other factors. Under long-term shear conditions, both samples exhibit good shear stability, as well as consistency at different frequencies and strain amplitudes. However, an increase in shear rate reduces the normal force, and temperature also affects the field-dependent normal force. The patterns of variation in steady-state and oscillatory shear modes are not entirely the same, but both exhibit a characteristic decrease with increasing temperature under high magnetic field intensities. Sepiolite can reduce the temperature sensitivity of the normal force of the magnetorheological grease. In conclusion, the introduction of sepiolite is beneficial for the application of magnetorheology in high-precision devices.

show abstract

Section: Introductionmentioning

confidence: 99%

Effect of Sepiolite on the Field-Dependent Normal Force of Magnetorheological Grease

Wang

et al. 2023

Materials

Self Cite

View full text Add to dashboard Cite

show abstract

A review on the magnetorheological materials and applications

Yang,

Pan,

Wang

2024

JAE

View full text Add to dashboard Cite

Magnetorheological materials refer to field-response smart materials whose properties are controllable with a magnetic field, including fluid, grease, elastomer, and gel. The unique magnetorheological effect exhibited by these smart materials is a physical phenomenon where physics and engineering intersect and has extensive application prospects in modern machinery. In electro-mechanical systems, magnetorheological materials offer a superior design method for mechanical devices used in the fields of transmission, damping, and braking. It is important to control the magnetorheological materials for advancing the design philosophy of modern electro-mechanical devices. Hence, this paper presents a recent progressive review on the fundamentals of magnetorheological materials and numerous applications. Firstly, an introduction to the magnetorheological effect and different types of magnetorheological materials are presented in this review. Then, the individual and coupled effects of sedimentation, temperature, and magnetic field on magnetorheological materials are discussed. Finally, magnetorheological materials-based devices have been extensively reviewed, including actuator, clutch, damper, brake, pump, valve, and robot, thus aiming to provide useful information for facilitating the design of complex electro-mechanical systems.

show abstract

Influence of Magnetic Field and Temperature on Rheological Behavior of Magnetorheological Gel

Cited by 2 publications

References 38 publications

Effect of Sepiolite on the Field-Dependent Normal Force of Magnetorheological Grease

Effect of Sepiolite on the Field-Dependent Normal Force of Magnetorheological Grease

A review on the magnetorheological materials and applications

Contact Info

Product

Resources

About