Capture of Superfluid Helium by Porous Structures
We have studied superfluid helium capture in a sample of silica aerogel of 98.2% porosity in the temperature range from 1.22 K up to 1.89 K. The high retention of He in the aerogel sample corresponds to a similar phenomenon in impurity-helium condensates, in which very high values of the ratio of he...
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Veröffentlicht in: | Journal of low temperature physics 2008-02, Vol.150 (3-4), p.511-515 |
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creator | Boltnev, R. E. Bykhalo, I. B. Ivashin, S. V. Krushinskaya, I. N. Mezhov-Deglin, L. P. |
description | We have studied superfluid helium capture in a sample of silica aerogel of 98.2% porosity in the temperature range from 1.22 K up to 1.89 K. The high retention of He in the aerogel sample corresponds to a similar phenomenon in impurity-helium condensates, in which very high values of the ratio of helium atoms to impurity atoms (up to 60) have been seen. We have observed that removing the aerogel sample from superfluid helium in a cylindrical glass beaker caused a decrease of the helium level corresponding to the geometrical volume of the sample (≈1 cm
3
). This observation has allowed us to conclude that superfluid helium is completely captured by the porous sample. Superfluid helium filling aerogel and impurity-helium samples (porous structures) serves as a dispersive medium of gel-like samples which interacts strongly with impurity nanoclusters forming the dispersing system. |
doi_str_mv | 10.1007/s10909-007-9575-7 |
format | Article |
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3
). This observation has allowed us to conclude that superfluid helium is completely captured by the porous sample. Superfluid helium filling aerogel and impurity-helium samples (porous structures) serves as a dispersive medium of gel-like samples which interacts strongly with impurity nanoclusters forming the dispersing system.</description><identifier>ISSN: 0022-2291</identifier><identifier>EISSN: 1573-7357</identifier><identifier>DOI: 10.1007/s10909-007-9575-7</identifier><language>eng</language><publisher>Boston: Springer US</publisher><subject>Characterization and Evaluation of Materials ; Condensed Matter Physics ; Magnetic Materials ; Magnetism ; Physics ; Physics and Astronomy</subject><ispartof>Journal of low temperature physics, 2008-02, Vol.150 (3-4), p.511-515</ispartof><rights>Springer Science+Business Media, LLC 2007</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c319t-80e2783c5a7b6604bf71064b815ae9a87bd5714d467fd9dec43e270fe24e13fd3</citedby><cites>FETCH-LOGICAL-c319t-80e2783c5a7b6604bf71064b815ae9a87bd5714d467fd9dec43e270fe24e13fd3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1007/s10909-007-9575-7$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1007/s10909-007-9575-7$$EHTML$$P50$$Gspringer$$H</linktohtml><link.rule.ids>314,776,780,27901,27902,41464,42533,51294</link.rule.ids></links><search><creatorcontrib>Boltnev, R. E.</creatorcontrib><creatorcontrib>Bykhalo, I. B.</creatorcontrib><creatorcontrib>Ivashin, S. V.</creatorcontrib><creatorcontrib>Krushinskaya, I. N.</creatorcontrib><creatorcontrib>Mezhov-Deglin, L. P.</creatorcontrib><title>Capture of Superfluid Helium by Porous Structures</title><title>Journal of low temperature physics</title><addtitle>J Low Temp Phys</addtitle><description>We have studied superfluid helium capture in a sample of silica aerogel of 98.2% porosity in the temperature range from 1.22 K up to 1.89 K. The high retention of He in the aerogel sample corresponds to a similar phenomenon in impurity-helium condensates, in which very high values of the ratio of helium atoms to impurity atoms (up to 60) have been seen. We have observed that removing the aerogel sample from superfluid helium in a cylindrical glass beaker caused a decrease of the helium level corresponding to the geometrical volume of the sample (≈1 cm
3
). This observation has allowed us to conclude that superfluid helium is completely captured by the porous sample. Superfluid helium filling aerogel and impurity-helium samples (porous structures) serves as a dispersive medium of gel-like samples which interacts strongly with impurity nanoclusters forming the dispersing system.</description><subject>Characterization and Evaluation of Materials</subject><subject>Condensed Matter Physics</subject><subject>Magnetic Materials</subject><subject>Magnetism</subject><subject>Physics</subject><subject>Physics and Astronomy</subject><issn>0022-2291</issn><issn>1573-7357</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2008</creationdate><recordtype>article</recordtype><recordid>eNp9kD1PwzAQhi0EEqXwA9gysRnOX7E9ooovqRJIhdlykjNKlTbBjof-exKFmene4XlOdy8htwzuGYB-SAwsWDpFapVWVJ-RFVNaUC2UPicrAM4p55ZdkquU9gBgTSlWhG38MOaIRR-KXR4whi63TfGKXZsPRXUqPvrY51TsxpjrGUzX5CL4LuHN31yTr-enz80r3b6_vG0et7QWzI7UAHJtRK28rsoSZBU0g1JWhimP1htdNUoz2chSh8Y2WEsxCRCQS2QiNGJN7pa9Q-x_MqbRHdpUY9f5I04XOcG0kAbMBLIFrGOfUsTghtgefDw5Bm4uxy3luDnO5Tg9OXxx0sQevzG6fZ_jcfrnH-kX8Ghmqg</recordid><startdate>20080201</startdate><enddate>20080201</enddate><creator>Boltnev, R. E.</creator><creator>Bykhalo, I. B.</creator><creator>Ivashin, S. V.</creator><creator>Krushinskaya, I. N.</creator><creator>Mezhov-Deglin, L. P.</creator><general>Springer US</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7U5</scope><scope>8FD</scope><scope>L7M</scope></search><sort><creationdate>20080201</creationdate><title>Capture of Superfluid Helium by Porous Structures</title><author>Boltnev, R. E. ; Bykhalo, I. B. ; Ivashin, S. V. ; Krushinskaya, I. N. ; Mezhov-Deglin, L. P.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c319t-80e2783c5a7b6604bf71064b815ae9a87bd5714d467fd9dec43e270fe24e13fd3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2008</creationdate><topic>Characterization and Evaluation of Materials</topic><topic>Condensed Matter Physics</topic><topic>Magnetic Materials</topic><topic>Magnetism</topic><topic>Physics</topic><topic>Physics and Astronomy</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Boltnev, R. E.</creatorcontrib><creatorcontrib>Bykhalo, I. B.</creatorcontrib><creatorcontrib>Ivashin, S. V.</creatorcontrib><creatorcontrib>Krushinskaya, I. N.</creatorcontrib><creatorcontrib>Mezhov-Deglin, L. P.</creatorcontrib><collection>CrossRef</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>Technology Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Journal of low temperature physics</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Boltnev, R. E.</au><au>Bykhalo, I. B.</au><au>Ivashin, S. V.</au><au>Krushinskaya, I. N.</au><au>Mezhov-Deglin, L. P.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Capture of Superfluid Helium by Porous Structures</atitle><jtitle>Journal of low temperature physics</jtitle><stitle>J Low Temp Phys</stitle><date>2008-02-01</date><risdate>2008</risdate><volume>150</volume><issue>3-4</issue><spage>511</spage><epage>515</epage><pages>511-515</pages><issn>0022-2291</issn><eissn>1573-7357</eissn><abstract>We have studied superfluid helium capture in a sample of silica aerogel of 98.2% porosity in the temperature range from 1.22 K up to 1.89 K. The high retention of He in the aerogel sample corresponds to a similar phenomenon in impurity-helium condensates, in which very high values of the ratio of helium atoms to impurity atoms (up to 60) have been seen. We have observed that removing the aerogel sample from superfluid helium in a cylindrical glass beaker caused a decrease of the helium level corresponding to the geometrical volume of the sample (≈1 cm
3
). This observation has allowed us to conclude that superfluid helium is completely captured by the porous sample. Superfluid helium filling aerogel and impurity-helium samples (porous structures) serves as a dispersive medium of gel-like samples which interacts strongly with impurity nanoclusters forming the dispersing system.</abstract><cop>Boston</cop><pub>Springer US</pub><doi>10.1007/s10909-007-9575-7</doi><tpages>5</tpages></addata></record> |
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subjects | Characterization and Evaluation of Materials Condensed Matter Physics Magnetic Materials Magnetism Physics Physics and Astronomy |
title | Capture of Superfluid Helium by Porous Structures |
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