0000011869 00000 n Bei hohen Drücken (p ⪆ 1 GPa) wird eine über das Sievertsche Gesetz hinaus stark erhöhte Löslichkeit beobachtet. 0000017294 00000 n For this purpose, the equation of state of hydrogen was calculated by the procedure of Hemmes et al. 0000022151 00000 n 0000014311 00000 n Specifically considered are crystalline metals without defects and lattice disorder (pure metals), low hydrogen concentrations and the possibility of high hydrogen gas pressures. 0000009969 00000 n 0000009941 00000 n 0000019165 00000 n 0000009998 00000 n Specifically considered are crystalline metals without defects and lattice disorder (pure metals), low hydrogen concentrations and the possibility of high hydrogen gas pressures. OSTI.GOV Journal Article: Solubility of hydrogen isotopes in stressed hydride-forming metals Title: Solubility of hydrogen isotopes in stressed hydride-forming metals Full Record Unlike metals, hydrogen transport in polymer materials is sufficiently rapid that the permeation rates can generally be measured at or near ambient temperature. 0000020050 00000 n 0000010970 00000 n Products of interactions of transition metals with hydrogen exhibit retentions of essential metallic properties accompanied by decreases of density. trailer << /Size 87 /Info 39 0 R /Root 44 0 R /Prev 425326 /ID[<2de4f54f6b36fa7939f6ff8b4292d057><0f6e838c9670486e28968f9e0ceab72b>] >> startxref 0 %%EOF 44 0 obj << /Type /Catalog /Pages 38 0 R /Metadata 37 0 R /AcroForm 46 0 R /FICL:Enfocus 40 0 R /PageMode /UseNone /ViewerPreferences << /HideToolbar false /HideMenubar false /HideWindowUI false /FitWindow false /CenterWindow false >> /OpenAction 45 0 R >> endobj 45 0 obj << /S /GoTo /D [ 47 0 R /Fit ] >> endobj 46 0 obj << /Fields [ ] /DR << /Font << /ZaDb 34 0 R /Helv 35 0 R >> /Encoding << /PDFDocEncoding 36 0 R >> >> /DA (/Helv 0 Tf 0 g ) >> endobj 85 0 obj << /S 211 /V 339 /Filter /FlateDecode /Length 86 0 R >> stream 2001 43 View the article online for updates and enhancements. It has been shown by Fowler and Smithells (1937) that one can get a theoretical interpretation of the observed solubility, if one assumes that the hydrogen dissolves as protons which are free to move throughout practically the whole volume of the metal. The chief aspects of hydrogen diffusion in metals are discussed, especially the large size of the diffusion coefficient and its dependence on lattice structure. Cr, Feα, Mo, W sont présentées sous la forme de diagrammes d'Arrhenius en fonction de la pression. In other metals such as Ti, definite metal hydrides are formed which have a different lattice structure from the pure metal. 0000010019 00000 n We use cookies to help provide and enhance our service and tailor content and ads. ScienceDirect ® is a registered trademark of Elsevier B.V. ScienceDirect ® is a registered trademark of Elsevier B.V. Solubility of hydrogen in metals under high hydrogen pressures: Thermodynamical calculations. Furthermore, these metals take up hydrogen without changing their lattice structure. 0000005786 00000 n 0000002586 00000 n By continuing you agree to the use of cookies. Copyright © 2020 Elsevier B.V. or its licensors or contributors. t�ߚ����-. Lewis School of Chemistry, David Keir Building, Queen's University, Belfast, BT9 SAG, Northern Ireland Abstract - Products of interactions of transition metals with hydrogen exhibit retentions of essential metallic properties accompanied by decreases of density. 0000013364 00000 n 0000011890 00000 n hydrogen permeability, diffusivity and solubility in polymers are independent of pressure. 1— In certain metals such as Cu, hydrogen appears to be dissolved in the metal in the form of free protons, which do not affect the normal metal lattice, even when present at very considerable concentrations. 0000001502 00000 n 10−3nm3/atome H) et les termes dépendant de la concentration provenant des interactions entre atomes d'hydrogène. 0000021156 00000 n H�b```e``[����P� Ȁ �@6������Ć��S���K_a@,� ��g�N���4/��1��"�.en����׋V%%N��H:�S���֫Y%�b3�x��Nc۵b�ɴ��$�Y�.. `���VR�Y\\��2 .Tr �aR6q �@qH1�E�i5 �����Q�AƁ7@�����mLa�S 0000003821 00000 n The metal Pd is intermediate since the hydrogen affects the … 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