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Ferrofluid mist dynamics

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2 Author(s)
R. Dreyfus ; IBM Thomas J. Watson Research Center, Yorktown Heights, NY, USA ; A. Landon

Various magnetographic printers have been based on the use of micron-sized ferrofluid droplets to form images on paper. Pulsed laser photography is utilized to follow the droplet motion on ms to s time scales. The results agree with the predictions of a simple model. The only fitted parameter, the drop radius, has a value similar to the values found by other techniques. Results, combined with optical density measurements and the mist density, indicate that mist printing is basically a slow (0.1 to > 1 s) process.

Published in:

IEEE Transactions on Magnetics  (Volume:15 ,  Issue: 2 )