{"id":{"repo_id":"uiuc","oai_identifier":"oai:www.ideals.illinois.edu:2142/25665"},"canonical_url":"https://search.dev.ndltd.org/etd/uiuc/oai:www.ideals.illinois.edu:2142/25665","repository":{"repo_id":"uiuc","name":"University of Illinois - Urbana-Champaign","base_url":"https://www.ideals.illinois.edu/oai-pmh"},"display":{"title":"Quenching and annealing of lattice vacancies in pure lead","abstract":"Lead (99.9999% pure by weight) wires were quenched.in a low temperature (s35 K), low-pressure (10-100 bars absolute) helium atmosphere. Initial quench rates were between 1 and 3X10 4 °C/sec. The formation energy for a lattice vacancy was determined to be 0.54+0.02 eV and the resistivity for one atomic percent vacancies was found to be 2.8+0.1 po-cm. Annealing studies indicated that the vacancy behavior of lead is similar to other face-centered-cubic metals. Two annealing stages are observed. One stage near 170 K is attributed to the migration of vacancy type defects to clusters. A second stage at 330 K is associated with the dissolution of vacancy clusters and vacancy loops. Slope change measurements made at 140 K and 150 K indicate a divacancy migration energy of 0.45±0.04 eVe Anneals at 269 K and 322 K indicate a strong influence from impurities. A divacancy binding energy of 0.23+0.03eV is found. Good agreement with defect equilibrium concentration measurements and self-diffusion data is achieved.","abstract_html":"Lead (99.9999% pure by weight) wires were quenched.in a low temperature (s35 K), low-pressure (10-100 bars absolute) helium atmosphere. Initial quench rates were between 1 and 3X10 4 °C/sec. The formation energy for a lattice vacancy was determined to be 0.54+0.02 eV and the resistivity for one atomic percent vacancies was found to be 2.8+0.1 po-cm. Annealing studies indicated that the vacancy behavior of lead is similar to other face-centered-cubic metals. Two annealing stages are observed. One stage near 170 K is attributed to the migration of vacancy type defects to clusters. A second stage at 330 K is associated with the dissolution of vacancy clusters and vacancy loops. Slope change measurements made at 140 K and 150 K indicate a divacancy migration energy of 0.45±0.04 eVe Anneals at 269 K and 322 K indicate a strong influence from impurities. A divacancy binding energy of 0.23+0.03eV is found. Good agreement with defect equilibrium concentration measurements and self-diffusion data is achieved.","abstract_has_math":false,"creators":["Knodle, Walter St. Clare"],"institution":null,"degree_name":"Ph.D.","degree_level":"Dissertation","degree_discipline":"Physics","degree_department":null,"school":null,"contributors":["Koehler, James S."],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2011,"date_issued":"2011-07-05T19:25:44Z","date_published":"2011-07-05T19:25:44Z","updated_at":"2026-07-22T22:25:24Z","subjects":["lattice vacancie","pure lead","quenching","annealing","low-pressure helium atmosphere"],"languages":["en"],"rights":["1976 Walter St. Clare Knodle III"],"rights_urls":[],"identifier_entries":[{"key":"dc:identifier","label":"Identifier","values":["2448729"],"render_values":[{"text":"2448729","href":null,"code":true}]}]},"links":{"outbound_url":"http://hdl.handle.net/2142/25665","outbound_label":"Handle","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Koehler, James S."]},{"key":"dc:creator","label":"Author","values":["Knodle, Walter St. Clare"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["2011-07-05T19:25:44Z","10000-01-01","1976"]},{"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":["lattice vacancie","pure lead","quenching","annealing","low-pressure helium atmosphere"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language","label":"Dc Language","values":["en"]},{"key":"dc:rights","label":"Dc Rights","values":["1976 Walter St. Clare Knodle III"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["2448729","http://hdl.handle.net/2142/25665"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["Lead (99.9999% pure by weight) wires were quenched.in a low temperature (s35 K), low-pressure (10-100 bars absolute) helium atmosphere. Initial quench rates were between 1 and 3X10 4 °C/sec. The formation energy for a lattice vacancy was determined to be 0.54+0.02 eV and the resistivity for one atomic percent vacancies was found to be 2.8+0.1 po-cm. Annealing studies indicated that the vacancy behavior of lead is similar to other face-centered-cubic metals. Two annealing stages are observed. One stage near 170 K is attributed to the migration of vacancy type defects to clusters. A second stage at 330 K is associated with the dissolution of vacancy clusters and vacancy loops. Slope change measurements made at 140 K and 150 K indicate a divacancy migration energy of 0.45±0.04 eVe Anneals at 269 K and 322 K indicate a strong influence from impurities. A divacancy binding energy of 0.23+0.03eV is found. Good agreement with defect equilibrium concentration measurements and self-diffusion data is achieved.","Submitted by Carolyn Mead (cmead2@illinois.edu) on 2011-07-05T19:25:44Z No. of bitstreams: 1 1976_knodle.pdf: 3417183 bytes, checksum: 590f48ffa3fa156e6a50253f610dadb9 (MD5)","Made available in DSpace on 2011-07-05T19:25:44Z (GMT). No. of bitstreams: 1 1976_knodle.pdf: 3417183 bytes, checksum: 590f48ffa3fa156e6a50253f610dadb9 (MD5) Previous issue date: 1976","Item marked as restricted to the 'UIUC Users [automated]' Group (id=2) by Carolyn Mead (cmead2@illinois.edu) on 2011-07-05T19:25:44Z Item is restricted indefinitely.","Restriction data tranferred 2014-07-01T11:32:42-05:00 Original Data Group with Access UIUC Users [automated] Release Date: none Reason: Thesis","Thesis","U of I Only"]},{"key":"dc:title","label":"Title","values":["Quenching and annealing of lattice vacancies in pure lead"]}]}],"canonical_facts":{"dc:contributor":["Koehler, James S."],"dc:creator":["Knodle, Walter St. Clare"],"dc:date":["2011-07-05T19:25:44Z","10000-01-01","1976"],"dc:description":["Lead (99.9999% pure by weight) wires were quenched.in a low temperature (s35 K), low-pressure (10-100 bars absolute) helium atmosphere. Initial quench rates were between 1 and 3X10 4 °C/sec. The formation energy for a lattice vacancy was determined to be 0.54+0.02 eV and the resistivity for one atomic percent vacancies was found to be 2.8+0.1 po-cm. Annealing studies indicated that the vacancy behavior of lead is similar to other face-centered-cubic metals. Two annealing stages are observed. One stage near 170 K is attributed to the migration of vacancy type defects to clusters. A second stage at 330 K is associated with the dissolution of vacancy clusters and vacancy loops. Slope change measurements made at 140 K and 150 K indicate a divacancy migration energy of 0.45±0.04 eVe Anneals at 269 K and 322 K indicate a strong influence from impurities. A divacancy binding energy of 0.23+0.03eV is found. Good agreement with defect equilibrium concentration measurements and self-diffusion data is achieved.","Submitted by Carolyn Mead (cmead2@illinois.edu) on 2011-07-05T19:25:44Z No. of bitstreams: 1 1976_knodle.pdf: 3417183 bytes, checksum: 590f48ffa3fa156e6a50253f610dadb9 (MD5)","Made available in DSpace on 2011-07-05T19:25:44Z (GMT). No. of bitstreams: 1 1976_knodle.pdf: 3417183 bytes, checksum: 590f48ffa3fa156e6a50253f610dadb9 (MD5) Previous issue date: 1976","Item marked as restricted to the 'UIUC Users [automated]' Group (id=2) by Carolyn Mead (cmead2@illinois.edu) on 2011-07-05T19:25:44Z Item is restricted indefinitely.","Restriction data tranferred 2014-07-01T11:32:42-05:00 Original Data Group with Access UIUC Users [automated] Release Date: none Reason: Thesis","Thesis","U of I Only"],"dc:identifier":["2448729","http://hdl.handle.net/2142/25665"],"dc:language":["en"],"dc:rights":["1976 Walter St. Clare Knodle III"],"dc:subject":["lattice vacancie","pure lead","quenching","annealing","low-pressure helium atmosphere"],"dc:title":["Quenching and annealing of lattice vacancies in pure lead"],"dc:type":["Dissertation / Thesis","text"],"thesis:degree_discipline":["Physics"],"thesis:degree_level":["Dissertation"],"thesis:degree_name":["Ph.D."]},"updated_at":"2026-07-22T22:25:24Z"}