{"id":{"repo_id":"uiuc","oai_identifier":"oai:www.ideals.illinois.edu:2142/32088"},"canonical_url":"https://search.dev.ndltd.org/etd/uiuc/oai:www.ideals.illinois.edu:2142/32088","repository":{"repo_id":"uiuc","name":"University of Illinois - Urbana-Champaign","base_url":"https://www.ideals.illinois.edu/oai-pmh"},"display":{"title":"Shear modulus relaxation of bulk metallic glass, Pd₄₀Ni₄₀P₂₀, near the glass temperature","abstract":"The non-exponential and non-linear behavior of relaxing glasses below the glass temperature, Tg, is a well known and poorly understood phenomena that is the subject of much experimental and theoretical effort. The Interstitialcy Theory, which describes glasses as perfect crystals with a few percent of interstitialcy defects, provides an atomic insight into the nature of relaxing glasses. The shear modulus, G, is uniquely sensitive to interstitialcies and provides a convenient way to monitor their changing concentrations. A non-contact EMAT technique is used to excite and detect a shear wave resonance in bulk amorphous metallic glass Pd40Ni40P20 during and after a small sudden change in temperature. A shear modulus relaxation is observed with enough precision to determine how its time constant, t , changes as the relaxation progresses. The results discriminate against models of glassy relaxation commonly found in the literature and are consistent with the Interstitialcy Theory.","abstract_html":"The non-exponential and non-linear behavior of relaxing glasses below the glass temperature, Tg, is a well known and poorly understood phenomena that is the subject of much experimental and theoretical effort. The Interstitialcy Theory, which describes glasses as perfect crystals with a few percent of interstitialcy defects, provides an atomic insight into the nature of relaxing glasses. The shear modulus, G, is uniquely sensitive to interstitialcies and provides a convenient way to monitor their changing concentrations. A non-contact EMAT technique is used to excite and detect a shear wave resonance in bulk amorphous metallic glass Pd40Ni40P20 during and after a small sudden change in temperature. A shear modulus relaxation is observed with enough precision to determine how its time constant, t , changes as the relaxation progresses. The results discriminate against models of glassy relaxation commonly found in the literature and are consistent with the Interstitialcy Theory.","abstract_has_math":false,"creators":["Bains, Alijeet Singh"],"institution":null,"degree_name":"Ph.D.","degree_level":"Dissertation","degree_discipline":"Physics","degree_department":null,"school":null,"contributors":["Granato, A.V."],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2012,"date_issued":"2012-06-28T22:04:41Z","date_published":"2012-06-28T22:04:41Z","updated_at":"2026-07-22T22:25:30Z","subjects":["relaxing glasses","Interstitialcy Theory","shear modulus relaxation"],"languages":["en"],"rights":["©2004 Bains"],"rights_urls":[],"identifier_entries":[{"key":"dc:identifier","label":"Identifier","values":["Q. 541.0421 B161s","FILM 2004 B161"],"render_values":[{"text":"Q. 541.0421 B161s","href":null,"code":true},{"text":"FILM 2004 B161","href":null,"code":true}]}]},"links":{"outbound_url":"http://hdl.handle.net/2142/32088","outbound_label":"Handle","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Granato, A.V."]},{"key":"dc:creator","label":"Author","values":["Bains, Alijeet Singh"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["2012-06-28T22:04:41Z","10000-01-01","2004"]},{"key":"dc:type","label":"Dc Type","values":["Dissertation / Thesis","text"]},{"key":"thesis:degree_discipline","label":"Discipline","values":["Physics"]},{"key":"thesis:degree_level","label":"Degree Level","values":["Dissertation"]},{"key":"thesis:degree_name","label":"Degree Name","values":["Ph.D."]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["relaxing glasses","Interstitialcy Theory","shear modulus relaxation"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language","label":"Dc Language","values":["en"]},{"key":"dc:rights","label":"Dc Rights","values":["©2004 Bains"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["Q. 541.0421 B161s","FILM 2004 B161","http://hdl.handle.net/2142/32088"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["The non-exponential and non-linear behavior of relaxing glasses below the glass temperature, Tg, is a well known and poorly understood phenomena that is the subject of much experimental and theoretical effort. The Interstitialcy Theory, which describes glasses as perfect crystals with a few percent of interstitialcy defects, provides an atomic insight into the nature of relaxing glasses. The shear modulus, G, is uniquely sensitive to interstitialcies and provides a convenient way to monitor their changing concentrations. A non-contact EMAT technique is used to excite and detect a shear wave resonance in bulk amorphous metallic glass Pd40Ni40P20 during and after a small sudden change in temperature. A shear modulus relaxation is observed with enough precision to determine how its time constant, t , changes as the relaxation progresses. The results discriminate against models of glassy relaxation commonly found in the literature and are consistent with the Interstitialcy Theory.","Submitted by Rachelle Ramer (rramer2@illinois.edu) on 2012-06-28T22:04:41Z No. of bitstreams: 1 Bains_Alijeet.pdf: 676593 bytes, checksum: f87515fa866d809bd115c994238c08fe (MD5)","Made available in DSpace on 2012-06-28T22:04:41Z (GMT). No. of bitstreams: 1 Bains_Alijeet.pdf: 676593 bytes, checksum: f87515fa866d809bd115c994238c08fe (MD5) Previous issue date: 2004","Restriction data tranferred 2014-07-01T11:10:54-05:00 Original Data Group with Access UIUC Users [automated] Release Date: none Reason: thesis/dissertation","Item marked as restricted to the 'UIUC Users [automated]' Group (id=2) by Rachelle Ramer (rramer2@illinois.edu) on 2012-06-28T22:04:41Z Item is restricted indefinitely.","thesis/dissertation","U of I Only"]},{"key":"dc:title","label":"Title","values":["Shear modulus relaxation of bulk metallic glass, Pd₄₀Ni₄₀P₂₀, near the glass temperature"]}]}],"canonical_facts":{"dc:contributor":["Granato, A.V."],"dc:creator":["Bains, Alijeet Singh"],"dc:date":["2012-06-28T22:04:41Z","10000-01-01","2004"],"dc:description":["The non-exponential and non-linear behavior of relaxing glasses below the glass temperature, Tg, is a well known and poorly understood phenomena that is the subject of much experimental and theoretical effort. The Interstitialcy Theory, which describes glasses as perfect crystals with a few percent of interstitialcy defects, provides an atomic insight into the nature of relaxing glasses. The shear modulus, G, is uniquely sensitive to interstitialcies and provides a convenient way to monitor their changing concentrations. A non-contact EMAT technique is used to excite and detect a shear wave resonance in bulk amorphous metallic glass Pd40Ni40P20 during and after a small sudden change in temperature. A shear modulus relaxation is observed with enough precision to determine how its time constant, t , changes as the relaxation progresses. The results discriminate against models of glassy relaxation commonly found in the literature and are consistent with the Interstitialcy Theory.","Submitted by Rachelle Ramer (rramer2@illinois.edu) on 2012-06-28T22:04:41Z No. of bitstreams: 1 Bains_Alijeet.pdf: 676593 bytes, checksum: f87515fa866d809bd115c994238c08fe (MD5)","Made available in DSpace on 2012-06-28T22:04:41Z (GMT). No. of bitstreams: 1 Bains_Alijeet.pdf: 676593 bytes, checksum: f87515fa866d809bd115c994238c08fe (MD5) Previous issue date: 2004","Restriction data tranferred 2014-07-01T11:10:54-05:00 Original Data Group with Access UIUC Users [automated] Release Date: none Reason: thesis/dissertation","Item marked as restricted to the 'UIUC Users [automated]' Group (id=2) by Rachelle Ramer (rramer2@illinois.edu) on 2012-06-28T22:04:41Z Item is restricted indefinitely.","thesis/dissertation","U of I Only"],"dc:identifier":["Q. 541.0421 B161s","FILM 2004 B161","http://hdl.handle.net/2142/32088"],"dc:language":["en"],"dc:rights":["©2004 Bains"],"dc:subject":["relaxing glasses","Interstitialcy Theory","shear modulus relaxation"],"dc:title":["Shear modulus relaxation of bulk metallic glass, Pd₄₀Ni₄₀P₂₀, near the glass temperature"],"dc:type":["Dissertation / Thesis","text"],"thesis:degree_discipline":["Physics"],"thesis:degree_level":["Dissertation"],"thesis:degree_name":["Ph.D."]},"updated_at":"2026-07-22T22:25:30Z"}