Hydrogen in metals: screening, resistivity, and diffusion

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dc.contributor.advisorLane, Neal F.en_US
dc.creatorShaw, Milton Samuelen_US
dc.date.accessioned2018-12-18T21:18:36Zen_US
dc.date.available2018-12-18T21:18:36Zen_US
dc.date.issued1975en_US
dc.descriptionText includes handwritten formulasen_US
dc.description.abstractThe theory of screening of a potential in various approximations of a metal are reviewed. Phase shifts were calculated for free electron scattering by a Yukawa potential, and the screening parameter was adjusted to satisfy the Friedel sum rule. Using these phase shifts, residual resistivities of hydrogen in various metals were calculated in qualitative agreement with experiment. The theories of diffusion of hydrogen in metals are reviewed. A model for the hydrogenmetal interaction has been constructed using linear response screening for the hydrogen and superposition of neutral atoms for the metal. Screening in the region of the metal cores was treated with a pseudopotential. The occupation of octahedral sites in FCC metals and tetrahedral sites in BCC metals is correctly predicted. Vibrational energy level spacing for Pd and Ni were calculated to be .8 eV and .16 eV, respectively. Experimental values are .6 eV and .12 eV. Activation energies for diffusion are estimated with qualitative agreement with experiment.en_US
dc.format.digitalOriginreformatted digitalen_US
dc.format.extent148 ppen_US
dc.identifier.callnoThesis Phys. 1975 Shawen_US
dc.identifier.citationShaw, Milton Samuel. "Hydrogen in metals: screening, resistivity, and diffusion." (1975) Master’s Thesis, Rice University. <a href="https://hdl.handle.net/1911/104191">https://hdl.handle.net/1911/104191</a>.en_US
dc.identifier.digitalRICE1818en_US
dc.identifier.urihttps://hdl.handle.net/1911/104191en_US
dc.language.isoengen_US
dc.rightsCopyright is held by the author, unless otherwise indicated. Permission to reuse, publish, or reproduce the work beyond the bounds of fair use or other exemptions to copyright law must be obtained from the copyright holder.en_US
dc.titleHydrogen in metals: screening, resistivity, and diffusionen_US
dc.typeThesisen_US
dc.type.materialTexten_US
thesis.degree.departmentPhysicsen_US
thesis.degree.disciplineNatural Sciencesen_US
thesis.degree.grantorRice Universityen_US
thesis.degree.levelMastersen_US
thesis.degree.nameMaster of Artsen_US
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