Molecular diffusion and solubility of hydrogen isotopes in vitreous silica
Deuterium permeation, diffusion, and solubility measurements have been made for several types of vitreous silica at temperatures ranging from 0 to 800 °C. The activation energies for permeation and diffusion were found to be somewhat temperature dependent. Isotope exchange between structural hydroxy...
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| Veröffentlicht in: | J. Appl. Phys.; (United States) 1977-08, Vol.48 (8), p.3387-3394 |
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| container_title | J. Appl. Phys.; (United States) |
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| creator | Shelby, J E |
| description | Deuterium permeation, diffusion, and solubility measurements have been made for several types of vitreous silica at temperatures ranging from 0 to 800 °C. The activation energies for permeation and diffusion were found to be somewhat temperature dependent. Isotope exchange between structural hydroxyl and the diffusing deuterium was found to occur at temperatures ?300 °C. Certain types of vitreous silica also react with the diffusing gas to form metastable deuteroxyl at ?600 °C. Isothermal hydrogen-isotope solubility was shown to be described by the Langmuir adsorption isotherm at pressures up to 1400 atm, whereas the temperature dependence of hydrogen-isotope solubility was adequately described by a statistical-mechanics model. Combination of these two models leads to a universal expression for hydrogen solubility from 0 to 800 °C and from 0 to 1400 atm. |
| doi_str_mv | 10.1063/1.324180 |
| format | Article |
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The activation energies for permeation and diffusion were found to be somewhat temperature dependent. Isotope exchange between structural hydroxyl and the diffusing deuterium was found to occur at temperatures ?300 °C. Certain types of vitreous silica also react with the diffusing gas to form metastable deuteroxyl at ?600 °C. Isothermal hydrogen-isotope solubility was shown to be described by the Langmuir adsorption isotherm at pressures up to 1400 atm, whereas the temperature dependence of hydrogen-isotope solubility was adequately described by a statistical-mechanics model. Combination of these two models leads to a universal expression for hydrogen solubility from 0 to 800 °C and from 0 to 1400 atm.</description><identifier>ISSN: 0021-8979</identifier><identifier>EISSN: 1089-7550</identifier><identifier>DOI: 10.1063/1.324180</identifier><language>eng</language><publisher>United States</publisher><subject>400203 - Isotope Exchange & Isotope Separation- (-1987) ; ACTIVATION ENERGY ; AMORPHOUS STATE ; CHALCOGENIDES ; CHEMICAL REACTIONS ; CRYOGENIC FLUIDS ; DEUTERIUM ; DIFFUSION ; ELEMENTS ; ENERGY ; FLUIDS ; HYDROGEN ; HYDROGEN ISOTOPES ; INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY ; ISOTOPES ; ISOTOPIC EXCHANGE ; LIGHT NUCLEI ; MATHEMATICAL MODELS ; MINERALS ; NONMETALS ; NUCLEI ; ODD-ODD NUCLEI ; OXIDES ; OXYGEN COMPOUNDS ; PERMEABILITY ; PRESSURE DEPENDENCE ; SILICA ; SILICON COMPOUNDS ; SILICON OXIDES ; SOLUBILITY ; STABLE ISOTOPES ; STATISTICAL MODELS ; TEMPERATURE DEPENDENCE</subject><ispartof>J. Appl. 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Phys.; (United States)</title><description>Deuterium permeation, diffusion, and solubility measurements have been made for several types of vitreous silica at temperatures ranging from 0 to 800 °C. The activation energies for permeation and diffusion were found to be somewhat temperature dependent. Isotope exchange between structural hydroxyl and the diffusing deuterium was found to occur at temperatures ?300 °C. Certain types of vitreous silica also react with the diffusing gas to form metastable deuteroxyl at ?600 °C. Isothermal hydrogen-isotope solubility was shown to be described by the Langmuir adsorption isotherm at pressures up to 1400 atm, whereas the temperature dependence of hydrogen-isotope solubility was adequately described by a statistical-mechanics model. Combination of these two models leads to a universal expression for hydrogen solubility from 0 to 800 °C and from 0 to 1400 atm.</description><subject>400203 - Isotope Exchange & Isotope Separation- (-1987)</subject><subject>ACTIVATION ENERGY</subject><subject>AMORPHOUS STATE</subject><subject>CHALCOGENIDES</subject><subject>CHEMICAL REACTIONS</subject><subject>CRYOGENIC FLUIDS</subject><subject>DEUTERIUM</subject><subject>DIFFUSION</subject><subject>ELEMENTS</subject><subject>ENERGY</subject><subject>FLUIDS</subject><subject>HYDROGEN</subject><subject>HYDROGEN ISOTOPES</subject><subject>INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY</subject><subject>ISOTOPES</subject><subject>ISOTOPIC EXCHANGE</subject><subject>LIGHT NUCLEI</subject><subject>MATHEMATICAL MODELS</subject><subject>MINERALS</subject><subject>NONMETALS</subject><subject>NUCLEI</subject><subject>ODD-ODD NUCLEI</subject><subject>OXIDES</subject><subject>OXYGEN COMPOUNDS</subject><subject>PERMEABILITY</subject><subject>PRESSURE DEPENDENCE</subject><subject>SILICA</subject><subject>SILICON COMPOUNDS</subject><subject>SILICON OXIDES</subject><subject>SOLUBILITY</subject><subject>STABLE ISOTOPES</subject><subject>STATISTICAL MODELS</subject><subject>TEMPERATURE DEPENDENCE</subject><issn>0021-8979</issn><issn>1089-7550</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1977</creationdate><recordtype>article</recordtype><recordid>eNqN0M1KAzEUBeAgCtYq-AjBhbiZepNMfmYpxV8qbnQdMpnERqaTmmSEvr0t4wO4OpuPcy8HoUsCCwKC3ZIFozVRcIRmBFRTSc7hGM0AKKlUI5tTdJbzFwAhijUz9PIae2fH3iTcBe_HHOKAzdDhHPuxDX0oOxw9Xu-6FD_dgEOOJW5dxmHAP6EkF8eM895Zc45OvOmzu_jLOfp4uH9fPlWrt8fn5d2qskxBqWgrGl97C66z0BjGJfhOSA6UCu6M9M6IllkDhLXUNLVnzkuvuHC0rY3ibI6upt6YS9DZhuLs2sZhcLZoyQAEhT26ntA2xe_R5aI3IVvX92Y4vKwpVVwx8i9YC1kfzt5M0KaYc3Jeb1PYmLTTBPRhek30ND37BSpHddg</recordid><startdate>19770801</startdate><enddate>19770801</enddate><creator>Shelby, J E</creator><scope>AAYXX</scope><scope>CITATION</scope><scope>8FD</scope><scope>H8D</scope><scope>L7M</scope><scope>7QQ</scope><scope>JG9</scope><scope>OTOTI</scope></search><sort><creationdate>19770801</creationdate><title>Molecular diffusion and solubility of hydrogen isotopes in vitreous silica</title><author>Shelby, J E</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c380t-2b69f4fc0edc09a3570fd67502265ea7fea6b3ca013b2a94f3ef7f856e2b4a853</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1977</creationdate><topic>400203 - Isotope Exchange & Isotope Separation- (-1987)</topic><topic>ACTIVATION ENERGY</topic><topic>AMORPHOUS STATE</topic><topic>CHALCOGENIDES</topic><topic>CHEMICAL REACTIONS</topic><topic>CRYOGENIC FLUIDS</topic><topic>DEUTERIUM</topic><topic>DIFFUSION</topic><topic>ELEMENTS</topic><topic>ENERGY</topic><topic>FLUIDS</topic><topic>HYDROGEN</topic><topic>HYDROGEN ISOTOPES</topic><topic>INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY</topic><topic>ISOTOPES</topic><topic>ISOTOPIC EXCHANGE</topic><topic>LIGHT NUCLEI</topic><topic>MATHEMATICAL MODELS</topic><topic>MINERALS</topic><topic>NONMETALS</topic><topic>NUCLEI</topic><topic>ODD-ODD NUCLEI</topic><topic>OXIDES</topic><topic>OXYGEN COMPOUNDS</topic><topic>PERMEABILITY</topic><topic>PRESSURE DEPENDENCE</topic><topic>SILICA</topic><topic>SILICON COMPOUNDS</topic><topic>SILICON OXIDES</topic><topic>SOLUBILITY</topic><topic>STABLE ISOTOPES</topic><topic>STATISTICAL MODELS</topic><topic>TEMPERATURE DEPENDENCE</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Shelby, J E</creatorcontrib><creatorcontrib>Sandia Laboratories, Livermore, California 94550</creatorcontrib><collection>CrossRef</collection><collection>Technology Research Database</collection><collection>Aerospace Database</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>Ceramic Abstracts</collection><collection>Materials Research Database</collection><collection>OSTI.GOV</collection><jtitle>J. Appl. Phys.; (United States)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Shelby, J E</au><aucorp>Sandia Laboratories, Livermore, California 94550</aucorp><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Molecular diffusion and solubility of hydrogen isotopes in vitreous silica</atitle><jtitle>J. Appl. Phys.; (United States)</jtitle><date>1977-08-01</date><risdate>1977</risdate><volume>48</volume><issue>8</issue><spage>3387</spage><epage>3394</epage><pages>3387-3394</pages><issn>0021-8979</issn><eissn>1089-7550</eissn><abstract>Deuterium permeation, diffusion, and solubility measurements have been made for several types of vitreous silica at temperatures ranging from 0 to 800 °C. The activation energies for permeation and diffusion were found to be somewhat temperature dependent. Isotope exchange between structural hydroxyl and the diffusing deuterium was found to occur at temperatures ?300 °C. Certain types of vitreous silica also react with the diffusing gas to form metastable deuteroxyl at ?600 °C. Isothermal hydrogen-isotope solubility was shown to be described by the Langmuir adsorption isotherm at pressures up to 1400 atm, whereas the temperature dependence of hydrogen-isotope solubility was adequately described by a statistical-mechanics model. Combination of these two models leads to a universal expression for hydrogen solubility from 0 to 800 °C and from 0 to 1400 atm.</abstract><cop>United States</cop><doi>10.1063/1.324180</doi><tpages>8</tpages></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0021-8979 |
| ispartof | J. Appl. Phys.; (United States), 1977-08, Vol.48 (8), p.3387-3394 |
| issn | 0021-8979 1089-7550 |
| language | eng |
| recordid | cdi_proquest_miscellaneous_22858310 |
| source | AIP Digital Archive |
| subjects | 400203 - Isotope Exchange & Isotope Separation- (-1987) ACTIVATION ENERGY AMORPHOUS STATE CHALCOGENIDES CHEMICAL REACTIONS CRYOGENIC FLUIDS DEUTERIUM DIFFUSION ELEMENTS ENERGY FLUIDS HYDROGEN HYDROGEN ISOTOPES INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY ISOTOPES ISOTOPIC EXCHANGE LIGHT NUCLEI MATHEMATICAL MODELS MINERALS NONMETALS NUCLEI ODD-ODD NUCLEI OXIDES OXYGEN COMPOUNDS PERMEABILITY PRESSURE DEPENDENCE SILICA SILICON COMPOUNDS SILICON OXIDES SOLUBILITY STABLE ISOTOPES STATISTICAL MODELS TEMPERATURE DEPENDENCE |
| title | Molecular diffusion and solubility of hydrogen isotopes in vitreous silica |
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