[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"doc-seo-657737-105":3,"detail-sidebar-cat-0-en-105":81,"doc-detail-657737-en":130},{"code":4,"msg":5,"data":6},0,"ok",{"site_id":7,"language":8,"slug":9,"title":10,"keywords":11,"description":12,"schema_data":13,"social_meta":74,"head_meta":76,"extra_data":78,"updated_unix":80},105,"en","time-temperature-transformation-ttt-diagrams-for-crystallization-of-metal-oxide-thin-films","Time–Temperature–Transformation (TTT) Diagrams for Crystallization of Metal Oxide Thin Films","","Time–temperature–transformation (TTT) diagrams are developed to describe crystallization of amorphous metal oxide thin films, detailing how kinetic behavior compares with glass-based systems such as glass-ceramics and metallic glasses. Crystallization proceeds from amorphous to full crystallinity in the solid state, illustrated for ceria and gadolinia solid solutions prepared by precipitation thin-film spray pyrolysis. The work links transformation behavior to Lijschitz–Sletow–Wagner/ Ostwald ripening concepts, solute effects, and “C-type” TTT curve morphology, including the nose temperature Tn and its relation to cooling limits. Applications show TTT-guided thermokinetic engineering for MEMS devices.",{"@graph":14,"@context":73},[15,34,56],{"@type":16,"itemListElement":17},"BreadcrumbList",[18,23,27,31],{"item":19,"name":20,"@type":21,"position":22},"https://docshare.wps.com","Home","ListItem",1,{"item":24,"name":25,"@type":21,"position":26},"https://docshare.wps.com/document/","Document",2,{"item":28,"name":29,"@type":21,"position":30},"https://docshare.wps.com/document/research-report/","Research & Report",3,{"item":32,"name":10,"@type":21,"position":33},"https://docshare.wps.com/document/time-temperature-transformation-ttt-diagrams-for-crystallization-of-metal-oxide-thin-films/657737/",4,{"url":32,"name":10,"@type":35,"image":36,"author":41,"headline":10,"publisher":44,"fileFormat":47,"inLanguage":8,"description":12,"dateModified":48,"datePublished":49,"encodingFormat":47,"isAccessibleForFree":50,"interactionStatistic":51},"DigitalDocument",{"url":37,"@type":38,"width":39,"height":40},"https://docshare.wps.com/thumbnails/time-temperature-transformation-ttt-diagrams-for-crystallization-of-metal-oxide-thin-films/657737.png","ImageObject",300,407,{"name":42,"@type":43},"Grenda","Person",{"url":19,"name":45,"@type":46},"DocShare","Organization","application/pdf","2026-10-30","2026-10-26",true,{"@type":52,"interactionType":53,"userInteractionCount":55},"InteractionCounter",{"@type":54},"ViewAction",5,{"@type":57,"mainEntity":58},"FAQPage",[59,65,69],{"name":60,"@type":61,"acceptedAnswer":62},"What do time–temperature–transformation (TTT) diagrams represent during cooling?","Question",{"text":63,"@type":64},"TTT diagrams express conversion rates of equal phase transformations during cooling, linking phase formation behavior to the cooling history.","Answer",{"name":66,"@type":61,"acceptedAnswer":67},"How does solute affect crystallization in doped metal oxide thin films?",{"text":68,"@type":64},"After primary clusters form above the percolation threshold, solute slows crystallization (and grain growth), shifting TTT curves toward longer times and higher temperatures compared with undoped material.",{"name":70,"@type":61,"acceptedAnswer":71},"Why is the “nose temperature” Tn important in classical TTT diagrams?",{"text":72,"@type":64},"The nose temperature Tn defines the minimum cooling rate for phase transformation and is correlated with melting temperature Tm and, indirectly, material viscosity through the Vogel–Fulcher relation.","https://schema.org",{"og:url":32,"og:type":75,"og:title":10,"og:site_name":45,"og:description":12},"article",{"robots":77,"canonical":32},"index,follow",{"doc_id":79,"site_id":7},657737,1792987713,{"code":4,"msg":82,"data":83},"success",[84,88,92,96,100,105,110,114,119,122,126],{"id":22,"doc_module":4,"doc_module_name":25,"category_name":85,"show_sort_weight":86,"slug":87},"Story & Novel",90,"story-novel",{"id":26,"doc_module":4,"doc_module_name":25,"category_name":89,"show_sort_weight":90,"slug":91},"Literature",80,"literature",{"id":33,"doc_module":4,"doc_module_name":25,"category_name":93,"show_sort_weight":94,"slug":95},"Exam",70,"exam",{"id":55,"doc_module":4,"doc_module_name":25,"category_name":97,"show_sort_weight":98,"slug":99},"Comic",60,"comic",{"id":101,"doc_module":4,"doc_module_name":25,"category_name":102,"show_sort_weight":103,"slug":104},6,"Technology",50,"technology",{"id":106,"doc_module":4,"doc_module_name":25,"category_name":107,"show_sort_weight":108,"slug":109},7,"Healthcare",40,"healthcare",{"id":111,"doc_module":4,"doc_module_name":25,"category_name":29,"show_sort_weight":112,"slug":113},8,30,"research-report",{"id":115,"doc_module":4,"doc_module_name":25,"category_name":116,"show_sort_weight":117,"slug":118},9,"Religion & Spirituality",20,"religion-spirituality",{"id":117,"doc_module":4,"doc_module_name":25,"category_name":120,"show_sort_weight":117,"slug":121},"World Cup","world-cup",{"id":123,"doc_module":4,"doc_module_name":25,"category_name":124,"show_sort_weight":123,"slug":125},10,"Lifestyle","lifestyle",{"id":127,"doc_module":4,"doc_module_name":25,"category_name":128,"show_sort_weight":55,"slug":129},19,"General","general",{"code":4,"msg":82,"data":131},{"doc_id":79,"user_id":132,"nickname":42,"user_avatar":133,"doc_module":4,"category_id":111,"category_name":29,"doc_title":10,"doc_description":12,"doc_content":134,"file_id":135,"file_url":136,"file_type":137,"file_size":138,"view_count":55,"is_deleted":4,"is_public":22,"is_downloadable":22,"audit_status":22,"page_count":111,"language":139,"language_code":8,"site_id":7,"html_lang":8,"table_of_contents":140,"faqs":141,"seo_title":142,"seo_description":12,"update_tm":80,"read_time":117},7971474921005,"https://ap-avatar.wpscdn.com/davatar_29158cc5080c5b710cf443261637dec0","[www.afm-journal.de](www.afm-journal.de)  \n[www.MaterialsViews.com](www.MaterialsViews.com)  \nTime–Temperature–Transformation (TTT) Diagrams for Crystallization of Metal Oxide Thin Films  \nBy Jennifer L. M. Rupp,* Barbara Scherrer, Nina Schäuble, and Ludwig J. Gauckler  \nTime–temperature–transformation (TTT) diagrams are proposed for the crystallization of amorphous metal oxide thin films and their specific characteristics are discussed in comparison to glass-based materials, such as glass-ceramics and metallic glasses. The films crystallize from amorphous to full crystallinity in the solid state. As an example the crystallization kinetics for a single-phase metal oxide, ceria, and its gadolinia solid solutions are reported made by the precipitation thin-film method spray pyrolysis. The crystallization of an amorphous metal oxide thin film generally follows the Lijschitz–Sletow–Wagner (LSW) Ostwald ripening theory: Below the percolation threshold of 20 vol% single grains crystallize in the amorphous phase and low crystallization rates are measured. In this state no impact of solute on crystallization is measurable. Once the grains form primary clusters above the threshold the solute slows down crystallization (and grain growth) thus shifting the TTT curves ofthe doped ceria films to longer times and higher temperatures in comparison to undoped ceria. Current views on crystallization of metal oxide thin films, the impact of solute dragging, and primary TTT diagrams are discussed. Finally, examples on how to use these TTT diagrams for better thermokinetic engineering of metal oxide thin films for MEMS are given, for example, for micro-Solid Oxide Fuel Cells and resistive sensors. In these examples the electrical properties depend on the degree of crystallinity and, thereby, on the TTT conditions.  \nnucleation states, and the conversion to distinctive degrees of crystallinity with respect to the undercooling history of the glass melt. In general, the curves in TTT diagrams exhibit a “C-type” form with respect to the temperature-time ordinates, as shown schematically in Figure 1 for metal- and glass-based systems. Thereby, the nose of the TTT-curve points towards the ordinates. This “C-type” curve shape is given by the increase in driving force for crystallization with decreasing temperature of the melt and the concurrent decrease in atomic mobility of the material. [3,7] Thus, the nose defines through its temperature Tn the minimum cooling rate for which phase transformation occurs. [1,7] Uhlmann correlated the melting temperature Tm to the nose temperature Tn, which is also indirectly correlated to the viscosity of the material through the Vogel-Fulcher relation. [11, 12] For alloys and solid-solution strengthened glasses the nose of the TTT curve is shifted to the right, thus providing more time to undergo phase transition. This TTT kinetic approach allows the minimal cooling rate and the general temperature-  \n1. Introduction  \nIn materials science, time–temperature–transformation (TTT) diagrams express the conversion rates of equal phase transformations during cooling. [1] The most prominent materials for which TTT diagrams are used are steels, alloys,[2] metallicglasses,[3,4] glasses, and glass-ceramics. [5–9] They all have in common that their history of phase formation is dependent on their cooling rate. A primary TTT diagram was produced for steel to predict the formation and existence of martensite and bainite during melt cooling depending on the cooling rate. [10] The processing of glass-based materials depends specificallyon TTT diagrams to predict characteristics such as vitrification,  \n[∗ ] Dr. J. L. M. Rupp, B. Scherrer, N. Schäuble, Prof. L. J. Gauckler Department of Materials  \nETH Zurich  \nETH Zurich Wolfgang-Pauli-Str.10 CH-8093 Zurich (Switzerland) E-mail: [jennifer.rupp@mat.ethz.ch](jennifer.rupp@mat.ethz.ch)  \nDOI: 10.1002/adfm.201000377  \ntime dependence for the phase transformation, in general from the amorphous (or ","cbCaigTxR0WYtpnK","https://ap.wps.com/l/cbCaigTxR0WYtpnK","pdf",636008,"English","# Introduction\n## TTT diagrams and phase transformation rates\n## Crystallization behavior of metal oxide thin films\n## Classical TTT curve features and the nose temperature\n## Applications for MEMS thermokinetic engineering","[{\"question\":\"What do time–temperature–transformation (TTT) diagrams represent during cooling?\",\"answer\":\"TTT diagrams express conversion rates of equal phase transformations during cooling, linking phase formation behavior to the cooling history.\"},{\"question\":\"How does solute affect crystallization in doped metal oxide thin films?\",\"answer\":\"After primary clusters form above the percolation threshold, solute slows crystallization (and grain growth), shifting TTT curves toward longer times and higher temperatures compared with undoped material.\"},{\"question\":\"Why is the “nose temperature” Tn important in classical TTT diagrams?\",\"answer\":\"The nose temperature Tn defines the minimum cooling rate for phase transformation and is correlated with melting temperature Tm and, indirectly, material viscosity through the Vogel–Fulcher relation.\"}]","Time–Temperature–Transformation (TTT) Diagrams for Crystallization of Metal Oxide Thin Films | PDF"]