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Use of narrow-pore filters in He II transfer devices - new results

Kasthurirengan, S and Schotte, U and Denner, HD and SziJcs, Z and Klipping, G (1985) Use of narrow-pore filters in He II transfer devices - new results. In: Cryogenics, 25 (9). pp. 518-525.

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With the aim of finding simple methods for the fabrication of He II refilling devices, He II flow has been studied through filters made from various fine powders (oxides and metals, grain sizes in the range 0.05–2 μm) by compacting them under pressure. The results obtained for the different states of He II flow, especially in the “breakthrough” and “easy flow” range, are explained by the fountain effect, He II hydrodynamics and the choking effect. According to the results, pressedpowder filters can be classified into three groups with different flow characteristics, of which the “good transfer filters” with a behaviour neatly described by simple theory are suitable for use in He II refilling devices.

Item Type: Journal Article
Publication: Cryogenics
Publisher: Elsevier Science
Additional Information: The copyright of this article belongs to Elsevier Science
Keywords: helium; superfluid; narrow pore filters; transfer devices.
Department/Centre: Division of Physical & Mathematical Sciences > Physics
Date Deposited: 16 Nov 2009 11:43
Last Modified: 19 Sep 2010 05:32
URI: http://eprints.iisc.ac.in/id/eprint/20399

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