Influence of particle size distribution on the initial susceptibility of magnetic fluids in the Brown relaxation range
We present experimental results on magnetic liquids characterised by a size distribution of particles. The initial complex susceptibility has been studied in the Brown relaxation range using a polarimetric method. The position and the shape of the relaxation peak allow to determine apparent values o...
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Veröffentlicht in: | Journal of magnetism and magnetic materials 1998-07, Vol.186 (1), p.168-174 |
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creator | Payet, B Vincent, D Delaunay, L Noyel, G |
description | We present experimental results on magnetic liquids characterised by a size distribution of particles. The initial complex susceptibility has been studied in the Brown relaxation range using a polarimetric method. The position and the shape of the relaxation peak allow to determine apparent values of hydrodynamic mean diameter and its standard deviation. Theoretical calculations were made from the Debye model including the size distribution of particles and the experimental study shows its influence and the necessity to take it into account for a better results exploitation. In these conditions, the Debye model used gives excellent results in accordance with the experimental points. |
doi_str_mv | 10.1016/S0304-8853(98)00082-1 |
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The initial complex susceptibility has been studied in the Brown relaxation range using a polarimetric method. The position and the shape of the relaxation peak allow to determine apparent values of hydrodynamic mean diameter and its standard deviation. Theoretical calculations were made from the Debye model including the size distribution of particles and the experimental study shows its influence and the necessity to take it into account for a better results exploitation. In these conditions, the Debye model used gives excellent results in accordance with the experimental points.</description><identifier>ISSN: 0304-8853</identifier><identifier>EISSN: 1873-4766</identifier><identifier>DOI: 10.1016/S0304-8853(98)00082-1</identifier><identifier>CODEN: JMMMDC</identifier><language>eng</language><publisher>Amsterdam: Elsevier B.V</publisher><subject>Brown relaxation ; Chemistry ; Colloidal state and disperse state ; Engineering Sciences ; Exact sciences and technology ; General and physical chemistry ; Magnetic fluids ; Other ; Particle size distribution ; Physical and chemical studies. Granulometry. 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The initial complex susceptibility has been studied in the Brown relaxation range using a polarimetric method. The position and the shape of the relaxation peak allow to determine apparent values of hydrodynamic mean diameter and its standard deviation. Theoretical calculations were made from the Debye model including the size distribution of particles and the experimental study shows its influence and the necessity to take it into account for a better results exploitation. In these conditions, the Debye model used gives excellent results in accordance with the experimental points.</description><subject>Brown relaxation</subject><subject>Chemistry</subject><subject>Colloidal state and disperse state</subject><subject>Engineering Sciences</subject><subject>Exact sciences and technology</subject><subject>General and physical chemistry</subject><subject>Magnetic fluids</subject><subject>Other</subject><subject>Particle size distribution</subject><subject>Physical and chemical studies. Granulometry. 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Electrokinetic phenomena</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Payet, B</creatorcontrib><creatorcontrib>Vincent, D</creatorcontrib><creatorcontrib>Delaunay, L</creatorcontrib><creatorcontrib>Noyel, G</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Hyper Article en Ligne (HAL)</collection><jtitle>Journal of magnetism and magnetic materials</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Payet, B</au><au>Vincent, D</au><au>Delaunay, L</au><au>Noyel, G</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Influence of particle size distribution on the initial susceptibility of magnetic fluids in the Brown relaxation range</atitle><jtitle>Journal of magnetism and magnetic materials</jtitle><date>1998-07-01</date><risdate>1998</risdate><volume>186</volume><issue>1</issue><spage>168</spage><epage>174</epage><pages>168-174</pages><issn>0304-8853</issn><eissn>1873-4766</eissn><coden>JMMMDC</coden><abstract>We present experimental results on magnetic liquids characterised by a size distribution of particles. The initial complex susceptibility has been studied in the Brown relaxation range using a polarimetric method. The position and the shape of the relaxation peak allow to determine apparent values of hydrodynamic mean diameter and its standard deviation. Theoretical calculations were made from the Debye model including the size distribution of particles and the experimental study shows its influence and the necessity to take it into account for a better results exploitation. In these conditions, the Debye model used gives excellent results in accordance with the experimental points.</abstract><cop>Amsterdam</cop><pub>Elsevier B.V</pub><doi>10.1016/S0304-8853(98)00082-1</doi><tpages>7</tpages></addata></record> |
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subjects | Brown relaxation Chemistry Colloidal state and disperse state Engineering Sciences Exact sciences and technology General and physical chemistry Magnetic fluids Other Particle size distribution Physical and chemical studies. Granulometry. Electrokinetic phenomena |
title | Influence of particle size distribution on the initial susceptibility of magnetic fluids in the Brown relaxation range |
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