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Showing 1 to 20 of 390 for “"dislocations"”.
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Dislocations and Green's functions in prestressed solids
… function and problems of the inclusions and dislocations are addressed in the first Part, while implementation of elastoplastic constitutive laws are treated in the second. These subjects can be seen as different approaches to the investigation of the plastic behaviour of materials. In the …
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Modeling Collective Behavior of Dislocations in Crystalline Materials
… the following physical contexts: annihilation of dislocations, expansion of a polygonal dislocation loop and operation of a Frank-Read source. The weak solutions to these equations are not unique, and the numerical method is able to capture solutions corresponding to shock as well as expansion …
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The scattering of thermal phonons by mobile dislocations
Submitted by William Weathers (weathrs2@illinois.edu) on 2012-03-21T20:51:27Z No. of bitstreams: 1 1971_malinowski.pdf: 2923570 bytes, checksum: 1135cfc8600631e8b65b51eda59aab8e (MD5)
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Guided Abduction in the Treatment of Congenital Hip Dislocations
… <p>The early group of congenital hip dislocations represents a difficult problem. It has been shown as a result of this study that guided abduction is an effective way to control the reduction of the involved femoral head within the acetabulum, and failing this, it sets the stage for …
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Hydrogen Effects on Crystal Dislocations and Stacking-Fault Energy
… of hydrogen shielding the interaction of dislocations with other elastic centers are outlined. In-situ straining transmission electron microscope experiments show that the effect of hydrogen on the interaction between dislocations is reversible, whereas in systems where significant levels …
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Dynamic propagation of shear dislocations applied to seismic models
Two analytical approaches based on the methods of self-similar potentials and rotational superposition are developed for the study of three-dimensional dislocation source models for earthquakes. The first approach deals with the sudden stopping of a spreading circular shear dislocation. The second …
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Modeling of interlayer dislocations in heterodeformed bilayer 2D homostructures
Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2027-08-01
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Free and obstructed glide of dislocations: A theoretical framework
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2024-09-16 without embargo terms
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Atomistics of defect nucleation and mobility : dislocations and twinning
… with the two primary defects of interest being dislocations and deformation twinning, and emphasis on the atomistic mechanisms and measures. The contributions presented in the thesis may be regarded as advances in both methods development and mechanistic understanding of dislocation mobility and …
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ANAPHORA, AGREEMENT AND THE PRAGMATICS OF "RIGHT DISLOCATIONS" IN GREEK
"RIGHT DISLOCATIONS" IN GREEK ARE CLASSIFIED INTO SIX DIFFERENT CATEGORIES REFLECTING SIX DISTRICT COMMUNICATIVE FUNCTIONS AND ARE THUS SHOWN TO BE POWERFUL COMMUNICATIVE CONSTRUCTIONS AND/OR DEVICES, WHICH HAVE NOTHING TO DO WITH EITHERAFTERTHOUGHTIVENESS OR SYNTACTIC ANOMATY. THROUGHOUT THE …
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Oxygen diffusion in dislocations and grain boundaries in magnesium oxide
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Materials Science and Engineering, 1985.
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The Interaction of Dislocations With an Applied Stress in Anisotropic Crystals
Made available in DSpace on 2015-05-12T17:12:15Z (GMT). No. of bitstreams: 2 license.txt: 4848 bytes, checksum: 96035ab3f5e1c23cc7138a224ce498bd (MD5) 5904505.PDF: 2871591 bytes, checksum: 775b691a590ff2aaba9b8ab68ab3f84e (MD5) Previous issue date: 1959
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Velocities of Screw and 60-Dislocations in Intrinsic and Extrinsic Silicon
Made available in DSpace on 2014-12-14T16:00:28Z (GMT). No. of bitstreams: 1 7606828.pdf: 2735279 bytes, checksum: 046c5b1af3517f8f10980c74523922e6 (MD5) Previous issue date: 1975
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An Extension of a Theory of Mechanical Damping Due to Dislocations
Made available in DSpace on 2014-12-10T17:57:46Z (GMT). No. of bitstreams: 1 6612439.pdf: 2771676 bytes, checksum: 01fe339aff2b597a726612ff3546d313 (MD5) Previous issue date: 1966
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Hydrogen segregation, defects, and interactions with dislocations in nickel and aluminum
Deformation experiments were performed to determine the effects of hydrogen and carbon on the activation parameters for dislocation slip in macroscopic nickel tensile specimens. The results show that hydrogen increases the dislocation mobility in Ni and in Ni-H alloys by reducing the activation …
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Electrical impact assessment of dislocations in silicon materials for solar cells
… material with a higher density of defects (e.g., dislocations, grain boundaries, metal impurities) than more expensive single-crystalline growth methods. A higher density of defects, particularly dislocations, results in a greater density of charge-carrier recombination centers, which reduce a …
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Interaction of Trapped Hydrogen With Dislocations at Low-Temperature in Deformed Palladium
… is representative of hydrogen trapped at dislocations at low temperature. Correlating the spatial and the vibrational characterization of the Cottrell atmosphere demonstrated the phase behavior of the trapped solute interacting with dislocations at the distorted dislocation environment.
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The attenuation of lattice vibrations by oscillations of independent and coupled dislocations
Submitted by Carolyn Mead (cmead2@illinois.edu) on 2011-06-27T14:43:10Z No. of bitstreams: 1 1980_kneezel.pdf: 7064208 bytes, checksum: 45091c0ec8874fba37383f65b6bb3048 (MD5)
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