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(Why Aren´t There Any) Magnetic Liquids?

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18:30 – 20:00 16 May 2011
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Room P/L001, Department of Physics, University of York, YO10 5DD

Speakers: Prof. Kevin O'Grady

Magnetic liquids in the form of colloidal dispersions have been known since the 1960s. They have found application in a number of areas principally forming seals in vacuum rotary feedthroughs, damping materials in loudspeakers, magnetic sink float separators and in a range of other niche applications.
This lecture will describe the physics of these materials including methods by which they are prepared and aspects of their magnetic behaviour that lead to the applications. All the applications listed above will be described in detail and demonstrated during the lecture via a series of “hands-on” experiments.
All other liquids on earth are subject only to normal gravitational forces whereas a ferrofluid behaving as a true magnetic liquid, can also have its normal physical behaviour affected by a magnetic field which is divergent. Hence ferrofluids exhibit a number of highly unusual and unexpected phenomena. These phenomena will also be demonstrated during the lecture. Finally possible future applications will be discussed particularly those in the sphere of biomedical opportunities.
Coffee and biscuits in the concourse from 6pm

Event type: Lecture/Talk
Organised by: IOP Yorkshire Branch
Contact details: David Jenkins
Email: david.jenkins@york.ac.uk

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Room P/L001, Department of Physics, University of York, YO10 5DD
Clock icon
18:30 – 20:00 16 May 2011
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