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Characterization of fractals with an adsorbed superfluid film

机译:用吸附的超流体膜表征分形

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摘要

The tortuosity of a capillary-condensed film of superfluid He-4 adsorbed on 91%-porous silica aerogel has been measured, with transverse sound, as a function of helium coverage. Complementary data from He-4 adsorption isotherms and small-angle X-ray scattering have also been used for substrate characterization. The tortuosity is found to be roughly inversely proportional to the volume fraction of the liquid phase of helium. (C) 2003 Elsevier Science B.V. All rights reserved. [References: 9]
机译:已经测量了在91%多孔二氧化硅气凝胶上吸附的He-4超流体He-4的毛细管冷凝膜的曲折度,该曲折度随氦声的变化而产生横向声响。来自He-4吸附等温线和小角度X射线散射的补充数据也已用于基质表征。发现曲折度与氦液相的体积分数大致成反比。 (C)2003 Elsevier Science B.V.保留所有权利。 [参考:9]

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