...
首页> 外文期刊>The Journal of Chemical Physics >Viscoelasticity of mono- and polydisperse inverse ferrofluids
【24h】

Viscoelasticity of mono- and polydisperse inverse ferrofluids

机译:单分散和多分散逆铁磁流体的粘弹性

获取原文
获取原文并翻译 | 示例
           

摘要

We report on measurements of a magnetorheological model fluid created by dispersing nonmagnetic microparticles of polystyrene in a commercial ferrofluid. The linear viscoelastic properties as a function of magnetic field strength, particle size, and particle size distribution are studied by oscillatory measurements. We compare the results with a magnetostatic theory proposed by De Gans [Phys. Rev. E 60, 4518 (1999)] for the case of gap spanning chains of particles. We observe these chain structures via a long distance microscope. For monodisperse particles we find good agreement of the measured storage modulus with theory, even for an extended range, where the linear magnetization law is no longer strictly valid. Moreover we compare for the first time results for mono- and polydisperse particles. For the latter, we observe an enhanced storage modulus in the linear regime of the magnetization. (c) 2006 American Institute of Physics.
机译:我们报告了通过在商业铁磁流体中分散聚苯乙烯的非磁性微粒而产生的磁流变模型流体的测量结果。通过振荡测量研究了线性粘弹性特性随磁场强度,粒径和粒径分布的变化。我们将结果与De Gans提出的静磁理论[Phys。 Rev 60. 4518(1999)]。我们通过长距离显微镜观察这些链结构。对于单分散颗粒,即使在线性磁化定律不再严格有效的扩展范围内,我们也发现测得的储能模量与理论具有良好的一致性。此外,我们首次比较了单分散和多分散颗粒的结果。对于后者,我们在磁化的线性范围内观察到增强的储能模量。 (c)2006年美国物理研究所。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号