{"id":{"repo_id":"freiburg-diss","oai_identifier":"oai:freidok.uni-freiburg.de:603"},"canonical_url":"https://search.dev.ndltd.org/etd/freiburg-diss/oai:freidok.uni-freiburg.de:603","repository":{"repo_id":"freiburg-diss","name":"University of Freiburg","base_url":"https://freidok.uni-freiburg.de/oai/oai2.php"},"display":{"title":"Computer aided floating zone growth of Germanium-Silicon crystals in a resistance heated multi-zone furnace","abstract":"In this work a technologically state-of-the-art growth furnace <br>-- the FMF-module (Floating Zone Furnace with Rotating Magnetic <br>Field) -- is under development for crystal growth experiments on <br>the International Space Station. By using global simulations and <br>the inverse modeling method, its optimal design and its <br>performance could be obtained. By means of direct numerical simulations, the influence of solutal Marangoni convection on species transfer in a floating <br>zone could be qualitatively explained. The instability mechanism <br>of thermocapillary convection in a low Pr floating zone could be <br>attributed to the interaction of buoyancy convection and surface <br>flows. The direct numerical simulations were based on a full zone <br>model.","abstract_html":"In this work a technologically state-of-the-art growth furnace &lt;br&gt;-- the FMF-module (Floating Zone Furnace with Rotating Magnetic &lt;br&gt;Field) -- is under development for crystal growth experiments on &lt;br&gt;the International Space Station. By using global simulations and &lt;br&gt;the inverse modeling method, its optimal design and its &lt;br&gt;performance could be obtained. By means of direct numerical simulations, the influence of solutal Marangoni convection on species transfer in a floating &lt;br&gt;zone could be qualitatively explained. The instability mechanism &lt;br&gt;of thermocapillary convection in a low Pr floating zone could be &lt;br&gt;attributed to the interaction of buoyancy convection and surface &lt;br&gt;flows. The direct numerical simulations were based on a full zone &lt;br&gt;model.","abstract_has_math":false,"creators":["Lin, Keh-moh"],"institution":null,"degree_name":null,"degree_level":null,"degree_discipline":null,"degree_department":null,"school":null,"contributors":["Benz, Klaus-Werner"],"advisors":[],"committee_chairs":[],"committee_members":[],"year":null,"date_issued":"","date_published":null,"updated_at":"2026-07-24T02:21:46Z","subjects":["inverse Probleme","Prandtl-Zahl","floating zone technique","inverse modeling method"],"languages":[],"rights":[],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"https://freidok.uni-freiburg.de/data/603","outbound_label":"Repository record","outbound_source":"source_url"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Benz, Klaus-Werner"]},{"key":"dc:creator","label":"Author","values":["Lin, Keh-moh"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:type","label":"Dc Type","values":["DoctoralThesis"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["inverse Probleme","Prandtl-Zahl","floating zone technique","inverse modeling method"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description.abstract","label":"Abstract","values":["In this work a technologically state-of-the-art growth furnace <br>-- the FMF-module (Floating Zone Furnace with Rotating Magnetic <br>Field) -- is under development for crystal growth experiments on <br>the International Space Station. By using global simulations and <br>the inverse modeling method, its optimal design and its <br>performance could be obtained. By means of direct numerical simulations, the influence of solutal Marangoni convection on species transfer in a floating <br>zone could be qualitatively explained. The instability mechanism <br>of thermocapillary convection in a low Pr floating zone could be <br>attributed to the interaction of buoyancy convection and surface <br>flows. The direct numerical simulations were based on a full zone <br>model."]},{"key":"dc:format.medium","label":"Dc Format Medium","values":["application/pdf"]},{"key":"dc:title","label":"Title","values":["Computer aided floating zone growth of Germanium-Silicon crystals in a resistance heated multi-zone furnace","Computerunterstützte Züchtung von Germanium-Silicium Kristallen in einem Mehrzonen Float-Zone Widerstandofen"]}]}],"canonical_facts":{"dc:contributor":["Benz, Klaus-Werner"],"dc:creator":["Lin, Keh-moh"],"dc:description.abstract":["In this work a technologically state-of-the-art growth furnace <br>-- the FMF-module (Floating Zone Furnace with Rotating Magnetic <br>Field) -- is under development for crystal growth experiments on <br>the International Space Station. By using global simulations and <br>the inverse modeling method, its optimal design and its <br>performance could be obtained. By means of direct numerical simulations, the influence of solutal Marangoni convection on species transfer in a floating <br>zone could be qualitatively explained. The instability mechanism <br>of thermocapillary convection in a low Pr floating zone could be <br>attributed to the interaction of buoyancy convection and surface <br>flows. The direct numerical simulations were based on a full zone <br>model."],"dc:format.medium":["application/pdf"],"dc:subject":["inverse Probleme","Prandtl-Zahl","floating zone technique","inverse modeling method"],"dc:title":["Computer aided floating zone growth of Germanium-Silicon crystals in a resistance heated multi-zone furnace","Computerunterstützte Züchtung von Germanium-Silicium Kristallen in einem Mehrzonen Float-Zone Widerstandofen"],"dc:type":["DoctoralThesis"]},"updated_at":"2026-07-24T02:21:46Z"}