羰基铁粉的铁含量和粒径对磁流变液剪切屈服强度的影响

doi:10.11901/1005.3093.2014.361

材料研究学报

2014, Vol. 28

Issue (12): 955-960 DOI: 10.11901/1005.3093.2014.361

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羰基铁粉的铁含量和粒径对磁流变液剪切屈服强度的影响

姚军¹(

),张进秋¹,彭志召¹,张光磊²

1. 装甲兵工程学院装备试用与培训大队北京 100072
2. 装甲兵工程学院政治部北京 100072

Influence of Fe Content and Particle Size of Carbonyl Iron Powder on Shear Yield Stress of Magnetorheological Fluids

Jun YAO^1,^*(

),Jinqiu ZHANG¹,Zhizhao PENG¹,Guanglei ZHANG²

1. Brigade of Armament Trial and Training, Academy of Armored Force Engineering, Beijing 100072
2. Political Headquarters, Academy of Armored Force Engineering, Beijing 100072

引用本文:

姚军,张进秋,彭志召,张光磊. 羰基铁粉的铁含量和粒径对磁流变液剪切屈服强度的影响[J]. 材料研究学报, 2014, 28(12): 955-960.
Jun YAO, Jinqiu ZHANG, Zhizhao PENG, Guanglei ZHANG. Influence of Fe Content and Particle Size of Carbonyl Iron Powder on Shear Yield Stress of Magnetorheological Fluids[J]. Chinese Journal of Materials Research, 2014, 28(12): 955-960.

全文: PDF(1777 KB) HTML

摘要:

研究了羰基铁粉中Fe含量和颗粒粒径对磁流变液的剪切屈服强度影响。结果表明, 不同载液磁流变液的最大剪切屈服强度随着Fe含量的增大和软磁性颗粒粒径的增大而提高。推导了铁含量和粒径两个影响因素的比例关系, 得到了颗粒粒径和Fe含量相互的权重关系, 并进行了验证, 发现Fe含量对磁流变液的剪切屈服强度的影响比颗粒粒径的影响更大。最后, 分析了实验误差, 证明实验结论是有效的。

关键词 ：金属材料, 磁流变液, Fe含量, 颗粒粒径, 剪切屈服强度

Abstract：

The influence of Fe content and particle size of carbonyl iron powder on shear yield stress of magnetorheological fluids were investigated. The results show that the max shear yield stress of magnetorheological fluids with different carrier oil increases with the increasing Fe content, as well as the increasing particle size respectively. A formula is deduced to assess the weight factor related with the effect of Fe content and particle size on the performance of MRF, which was then optimal through experimental approach. It follows that the Fe content of carbonyl iron powder weighs higher than the particle size in terms of their contribution to the enhancement of shear yield stress. In the end, the possible errors have been analyzed, so that to prove the validity of experiments carried out above.

Key words： metallic materials magnetorheological fluids Fe content particle size shear yield stress

收稿日期: 2014-07-16

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https://www.cjmr.org/CN/10.11901/1005.3093.2014.361 或 https://www.cjmr.org/CN/Y2014/V28/I12/955

表1 实验材料及颗粒质量分数

表2 实验原料及颗粒质量分数

图1 不同载液羰基铁粉质量分数不同的磁流变液剪切屈服强度

表3 同一粒径不同Fe含量的磁流变液的最大剪切屈服强度(790 mT)

表4 含不同粒径磁性颗粒的磁流变液最大剪切屈服强度(790 mT)

图2 不同载液不同羰基铁粉质量分数的磁流变液剪切屈服强度的验证

表5 样品的基本参数

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