Applied Physics A

, 124:781 | Cite as

Development and dynamic performance test of magnetorheological material for recoil of gun

  • Guang Zhang
  • Huixing Wang
  • Jiong WangEmail author


As a kind of new MR material, MR gel (MRG) can be regard as the analog of MRF, which can overcome the iron particles sedimentation and unstable application of MRF especially in recoil of gun. However, some major parameter of this kind of MRG, such as the initial modulus, magneto-induced shear storage modulus and relative MR effect are relatively small, which cannot meet the need the application in recoil of gun. In this work, an MRG with high magneto-induced shear storage modulus, relative MR effect and suitable initial modulus has been fabricated by controlling the mass fraction of carbonyl iron powder (CIP) under specific crosslinking degree of polyurethane (PU) matrix. And several PU-based MRG composites with the CIP mass fraction of 40, 60, 80% were prepared. The dynamic mechanical property of those MRG samples ware researched through an advanced commercial rheometer. The experimental results indicated that magneto-induced modulus and relative MR effect in sample 2 (containing 60 wt% of CIP) were approximately 2.87 and 2.32 times than sample 1 (containing 40 wt% of CIP), 1.67 and 2.97 times than sample 3 (containing 80 wt% of CIP). Moreover, the samples have good consistency in transient response under the step magnetic field. The high magneto-induced modulus of sample 2 can be mainly attributed to the following point. Appropriate amount of PU polymer chain can reinforce the binding force between CIPs in the chain and better constrained particle motion under magnetic field. It is concluded that this study provides a meaningful way to improve the mechanical properties of MRG and expected to promote the application of MRG in recoil of gun.



This work has been supported by a Natural Science Foundation of China (NSFC) grant funded by the Chinese government (No. 51675280, No. 51705467 and 51805209). This work has been also supported by the Postgraduate Scientific Innovation Research Foundation of Jiangsu Province (No. KYCX18_0457).


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Copyright information

© Springer-Verlag GmbH Germany, part of Springer Nature 2018

Authors and Affiliations

  1. 1.School of Mechanical EngineeringNanjing University of Science and TechnologyJiangsuChina

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