Rheological properties of a natural rubber based magnetorheological elastomer (MRE) with spherical carbonyl iron particles (CIPs) and plate-like Sendust particles as soft magnetic particles were investigated. Isotropic and anisotropic MRE samples were prepared by molding in the absence or presence of magnetic field. Different shape of magnetic particles provided significant effect on mechanical properties of the MRE samples. The rheological properties of the MRE samples were measured in shear mode through a modified Dynamic Mechanical Analysis system equipped with an electromagnet. MRE samples containing plate-like Sendust particles showed higher shear storage modulus than MRE samples with spherical CIPs. Isotropic structures of the two types of magnetic particles contributed to improvement in MRE's performance, such as absolute and relative MR effect. The relative MR effect had a strain-dependent behavior that increased with increasing strain amplitude due to the Payne effect.

研究了天然橡胶基磁流变弹性体 (MRE) 的流变性能，其中球形羰基铁颗粒 (CIP) 和板状铁硅铝粉颗粒作为软磁颗粒。各向同性和各向异性 MRE 样品是通过在磁场不存在或存在的情况下成型来制备的。不同形状的磁性颗粒对 MRE 样品的机械性能有显着影响。MRE 样品的流变特性通过配备电磁铁的改进的动态机械分析系统在剪切模式下测量。含有板状铁硅铝石颗粒的 MRE 样品显示出比具有球形 CIP 的 MRE 样品更高的剪切储能模量。两种磁性粒子的各向同性结构有助于提高 MRE 的性能，例如绝对和相对 MR 效应。由于 Payne 效应，相对 MR 效应具有应变依赖性行为，随着应变幅度的增加而增加。