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dc.contributor.advisorFox, Alan G.
dc.contributor.authorCade, Steven C.
dc.dateJune 1991
dc.date.accessioned2013-02-15T23:32:26Z
dc.date.available2013-02-15T23:32:26Z
dc.date.issued1991-06
dc.identifier.urihttp://hdl.handle.net/10945/28311
dc.descriptionApproved for public release; distribution is unlimiteden_US
dc.description.abstractThe lattice parameters and atomic structure factors on an homogenized, binary, Ti-51at.%Al intermetallic alloy were investigated using powder X-ray diffraction procedures. Powder samples were prepared by pulverizing in a mortar and pestle lathe turnings taken from a sample ingot. The powder was then annealed to relieve the induced stress and passed through a U.S. Standard #400 sieve mesh (38 microns). Lattice parameters of the face-centered tetragonal structure determined from XRD peak positions indicated a c/a ratio of 1.020; values of 4.077(A) and 3.997(A) were obtained for c(o) and a(o) respectively. These results are in agreement with previous research into (y)phase TiAl. Measurement of diffracted integrated intensities was accomplished to determine the Debye-Waller temperature factor with a value of B = 0.58 (A) obtained by the Wilson Method. A reduction in expected measured intensities was noted, particularly at lower Braggs angles. This was attributed to extinction based on the results of a powder particle size average of 24.3 microns. Despite the problems of extinction, the observed Debye-Waller factor was judged to be reasonable accurate upon comparison to characteristic temperature and melting point data of the Ti-Al systems.en_US
dc.description.urihttp://archive.org/details/investigationofi00cade
dc.format.extent62 p.en_US
dc.language.isoen_US
dc.publisherMonterey, California. Naval Postgraduate Schoolen_US
dc.rightsThis publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. As such, it is in the public domain, and under the provisions of Title 17, United States Code, Section 105, may not be copyrighted.en_US
dc.titleAn investigation of the interatomic bonding characteristics of a Ti - 51at.% Al alloy by X-ray diffractionen_US
dc.typeThesisen_US
dc.contributor.corporateNaval Postgraduate School
dc.contributor.departmentMechanical Engineering
dc.subject.authorX-ray diffractionen_US
dc.subject.authorXRDen_US
dc.subject.authorTiAlen_US
dc.subject.authorTitaniumen_US
dc.subject.authorAluminumen_US
dc.subject.authorBonding characteristicsen_US
dc.subject.authorTitanium aluminidesen_US
dc.subject.authorDebye-Waller temperature factoren_US
dc.subject.authorStructure factoren_US
dc.description.serviceLieutenant, United States Navyen_US
etd.thesisdegree.nameM.S. in Mechanical Engineeringen_US
etd.thesisdegree.levelMastersen_US
etd.thesisdegree.disciplineMechanical Engineeringen_US
etd.thesisdegree.grantorNaval Postgraduate Schoolen_US


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