Elastic constants and thermal expansion of niobium as a function of temperature

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dc.contributor.advisorHouston, William V.en_US
dc.creatorCarroll, Keith Jamesen_US
dc.date.accessioned2016-04-22T22:00:04Zen_US
dc.date.available2016-04-22T22:00:04Zen_US
dc.date.issued1962en_US
dc.description.abstractThe three Independent elastic constants of the bcc niobium structure have been determined as a function of temperature over the range 4.2°-300°K, using an ultrasonic pulse technique - the propagation of 10 Me waves in preferred directions in the crystal specimen. Values obtained at 4.2°K are, in units of 10 dyne/cm2, c11 = 25.27 +/- 0.6%, c44 = 3.10 +/- 0.6%, c12 = 13.32 +/- 3.3%. A few measurements were also carried out on the thermal expansion of niobium, from 140°-280°K, and this quantity determined at a function of the temperature. The average expansion coefficient over the whole range studied was 6.24x10 to the -6th deg -1, which agreed moderately well with earlier work by other investigators.en_US
dc.format.digitalOriginreformatted digitalen_US
dc.format.extent36 ppen_US
dc.identifier.callnoThesis Phys. 1962 Carrollen_US
dc.identifier.citationCarroll, Keith James. "Elastic constants and thermal expansion of niobium as a function of temperature." (1962) Master’s Thesis, Rice University. <a href="https://hdl.handle.net/1911/90161">https://hdl.handle.net/1911/90161</a>.en_US
dc.identifier.digitalRICE1197en_US
dc.identifier.urihttps://hdl.handle.net/1911/90161en_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.titleElastic constants and thermal expansion of niobium as a function of temperatureen_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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