Field induced phase segregation in ferrofluids

Share/Save/Bookmark

Kooij, E.S. and Galca, A.C. and Poelsema, B. (2008) Field induced phase segregation in ferrofluids. Journal of Colloid and Interface Science, 327 (1). pp. 261-265. ISSN 0021-9797

[img]PDF
Restricted to UT campus only
: Request a copy
318Kb
Abstract:We study the phase segregation in magnetite ferrofluids under the influence of an external magnetic field. A phase with lower nanoparticle density and corresponding higher optical transmission is formed in the bottom of a glass cell in the presence of only a very modest magnetic field gradient (smaller than 25 T/m). The flux density in our magnetic configuration is simulated using finite element methods. Upon switching off the external magnetic field, the low-density phase develops into a ‘bubble’-like feature. The kinetics of this ‘bubble’ in the absence and presence of a magnetic field are described and analyzed in terms of a simple model, which takes into account buoyancy and drag forces
Item Type:Article
Copyright:© 2008 Elsevier Inc
Faculty:
Science and Technology (TNW)
Research Group:
Link to this item:http://purl.utwente.nl/publications/75193
Official URL:http://dx.doi.org/10.1016/j.jcis.2008.08.029
Export this item as:BibTeX
EndNote
HTML Citation
Reference Manager

 

Repository Staff Only: item control page

Metis ID: 249960