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dc.contributor.advisor Roberts, John M.
dc.creatorHartman, David Eugene
dc.date.accessioned 2016-04-21T12:01:50Z
dc.date.available 2016-04-21T12:01:50Z
dc.date.issued 1961
dc.identifier.citation Hartman, David Eugene. "Dislocation damping in magnesium monocrystals." (1961) Master’s Thesis, Rice University. https://hdl.handle.net/1911/89191.
dc.identifier.urihttps://hdl.handle.net/1911/89191
dc.description.abstract By employing a micro-strain gage, hysteresis loops were observed as a function of stress amplitude in magnesium single crystals from 83°K to 323°K, in the low frequency range (0.1 cps.). Broad relaxation peaks were found around 180°K. Activation energies associated with the peaks were about 0.33 ev., with a frequency factor of 108 cps. The stress amplitude dependence of the decrement was analyzed according to the Granato-Lucke and Teutonico-Granato-Lucke theories. The experimental results support the Teutonico-Granato-Lucke concept of pinned dislocations. A qualitative model is suggested to explain the symmetrical nature of the hysteresis loops, and the origin of the relaxation peak.
dc.format.extent 81 pp
dc.language.iso eng
dc.title Dislocation damping in magnesium monocrystals
dc.type Thesis
dc.identifier.digital RICE0228
dc.type.material Text
thesis.degree.department Mechanical Engineering and Materials Science
thesis.degree.discipline Engineering
thesis.degree.grantor Rice University
thesis.degree.level Masters
thesis.degree.name Master of Science
dc.format.digitalOrigin reformatted digital
dc.identifier.callno Thesis M.E. 1961 HARTMAN


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