{"id":{"repo_id":"uiuc","oai_identifier":"oai:www.ideals.illinois.edu:2142/82749"},"canonical_url":"https://search.dev.ndltd.org/etd/uiuc/oai:www.ideals.illinois.edu:2142/82749","repository":{"repo_id":"uiuc","name":"University of Illinois - Urbana-Champaign","base_url":"https://www.ideals.illinois.edu/oai-pmh"},"display":{"title":"The Onset and Blocking of Slip in Nickel Aluminide[001]","abstract":"TEM observations show that the slip is blocked by dislocation locking along both of the two directions in the {110} glide plane. The locking is explained by the non-planar splitting of the screw component along the three-fold line directions. HRTEM observations of the locked dislocations end-on show a compact core and rule out climb decomposition as the cause for the locking. The blocking of slip by dislocation locking along two line directions is in contrast to dislocations that are locked only along the screw orientations, and to dislocations that are not locked at all. This explains why slip is more difficult than and slips and the general absence of dislocations in NiAl crystals. An intuitive explanation for the planar core of dislocations is also given.","abstract_html":"TEM observations show that the slip is blocked by dislocation locking along both of the two directions in the {110} glide plane. The locking is explained by the non-planar splitting of the screw component along the three-fold line directions. HRTEM observations of the locked dislocations end-on show a compact core and rule out climb decomposition as the cause for the locking. The blocking of slip by dislocation locking along two line directions is in contrast to dislocations that are locked only along the screw orientations, and to dislocations that are not locked at all. This explains why slip is more difficult than and slips and the general absence of dislocations in NiAl crystals. An intuitive explanation for the planar core of dislocations is also given.","abstract_has_math":false,"creators":["Yang, Nan"],"institution":"University of Illinois at Urbana-Champaign","degree_name":"Ph.D.","degree_level":"Dissertation","degree_discipline":"Materials Science and Engineering","degree_department":null,"school":null,"contributors":["Yong-Qian Sun"],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2015,"date_issued":"2015-09-25T20:52:49Z","date_published":"2015-09-25T20:52:49Z","updated_at":"2026-07-22T22:26:18Z","subjects":["Engineering, Materials Science"],"languages":["eng"],"rights":[],"rights_urls":[],"identifier_entries":[{"key":"dc:identifier","label":"Identifier","values":["(MiAaPQ)AAI3111661"],"render_values":[{"text":"(MiAaPQ)AAI3111661","href":null,"code":true}]}]},"links":{"outbound_url":"http://hdl.handle.net/2142/82749","outbound_label":"Handle","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Yong-Qian Sun"]},{"key":"dc:creator","label":"Author","values":["Yang, Nan"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["2015-09-25T20:52:49Z","10000-01-01","2003"]},{"key":"dc:type","label":"Dc Type","values":["text"]},{"key":"thesis:degree_discipline","label":"Discipline","values":["Materials Science and Engineering"]},{"key":"thesis:degree_level","label":"Degree Level","values":["Dissertation"]},{"key":"thesis:degree_name","label":"Degree Name","values":["Ph.D."]},{"key":"thesis:institution_name","label":"Thesis Institution Name","values":["University of Illinois at Urbana-Champaign"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["Engineering, Materials Science"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language","label":"Dc Language","values":["eng"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["http://hdl.handle.net/2142/82749","(MiAaPQ)AAI3111661"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["TEM observations show that the slip is blocked by dislocation locking along both of the two directions in the {110} glide plane. The locking is explained by the non-planar splitting of the screw component along the three-fold line directions. HRTEM observations of the locked dislocations end-on show a compact core and rule out climb decomposition as the cause for the locking. The blocking of slip by dislocation locking along two line directions is in contrast to dislocations that are locked only along the screw orientations, and to dislocations that are not locked at all. This explains why slip is more difficult than and slips and the general absence of dislocations in NiAl crystals. An intuitive explanation for the planar core of dislocations is also given.","Made available in DSpace on 2015-09-25T20:52:49Z (GMT). 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The locking is explained by the non-planar splitting of the screw component along the three-fold line directions. HRTEM observations of the locked dislocations end-on show a compact core and rule out climb decomposition as the cause for the locking. The blocking of slip by dislocation locking along two line directions is in contrast to dislocations that are locked only along the screw orientations, and to dislocations that are not locked at all. This explains why slip is more difficult than and slips and the general absence of dislocations in NiAl crystals. An intuitive explanation for the planar core of dislocations is also given.","Made available in DSpace on 2015-09-25T20:52:49Z (GMT). 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