Rheological Properties and MR polishing Characteristics of Core Shell-Structured Silica-Coated CI particles

机译：核壳结构二氧化硅包覆CI颗粒的流变性能和MR抛光特性

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Recently,ultra-precision polishing processes using smart materials such as magnetorheological(MR)fluids have been used for optics parts such as aspheric lenses.The MR fluid applied in MR polishing is a phase controllable suspension comprising a mixture of CI particles and non-magnetic fluids such as mineral oil and water.The fluids are a kind of smart material that can be controlled according to their flow properties such as viscosity and stiffness.Water-based MR fluids are easily oxidized if the fluids are exposed and this oxidation can bring irregular polishing results.Also,this phenomenon is one of several factors that reduce the life time of MR fluids.In a previous work,CI particles were coated with a polymer or a composite for the improvement of dispersion stability and prevention of corrosion due to oxidation.From this study,the rheological properties such as viscosity and sedimentation of coated CI particles with silica were investigated with a rotational rheometer; MR polishing characteristics of BK7 glass were studied in order to investigate the surface roughness.The wheel speed and magnetic field intensity were chosen as variables.

机译：近来，使用诸如磁流变（MR）流体之类的智能材料的超精密抛光工艺已用于光学部件（如非球面透镜）。应用于MR抛光的MR流体是一种可控相的悬浮液，该悬浮液包含CI粒子和非磁性的混合物。矿物油和水等流体是一种智能材料，可以根据其流动特性（例如粘度和刚度）进行控制。如果水性MR流体暴露在外，则很容易被氧化，这种氧化会带来不规则的此外，该现象是减少MR流体使用寿命的几个因素之一。在以前的工作中，CI颗粒涂有聚合物或复合材料以改善分散稳定性并防止由于氧化而引起的腐蚀。通过这项研究，用旋转流变仪研究了流变性能，如粘度和二氧化硅包覆的CI颗粒的沉降。为了研究表面粗糙度，研究了BK7玻璃的MR抛光特性，选择了砂轮速度和磁场强度作为变量。

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来源
《7th International Conference on Electromagnetic Processing of Materials》|2012年|1-5|共5页
会议地点 Beijing(CN)
作者
HONG Kwang-Pyo; CHOI Seung-Bok; KIM Gun-Hee; CHOI Hyoung-Jin; CHO Myeong-Woo;
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作者单位

Department of Mechanical Engineering,Inha University,Incheon 402-751,Korea;

Department of Mechanical Engineering,Inha University,Incheon 402-751,Korea;

Korea Institute of Industrial Technology,Incheon 406-840,Korea;

Department of Polymer Science and Engineering,Inha University,Incheon 402-751,Korea;

Department of Mechanical Engineering,Inha University,Incheon 402-751,Korea;

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原文格式 PDF
正文语种 eng
中图分类一般性问题;
关键词
Magnetorheological polishing; Silica; Viscosity; Surface roughness; Material removal;

机译：磁流变抛光；二氧化硅；粘度；表面粗糙度；材料去除;

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Rheological Properties and MR polishing Characteristics of Core Shell-Structured Silica-Coated CI particles

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