[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"detail-sidebar-cat-0-en-105":3,"doc-seo-656797-105":59,"doc-detail-656797-en":130},{"code":4,"msg":5,"data":6},0,"success",[7,13,18,23,28,33,38,43,48,51,55],{"id":8,"doc_module":4,"doc_module_name":9,"category_name":10,"show_sort_weight":11,"slug":12},1,"Document","Story & Novel",90,"story-novel",{"id":14,"doc_module":4,"doc_module_name":9,"category_name":15,"show_sort_weight":16,"slug":17},2,"Literature",80,"literature",{"id":19,"doc_module":4,"doc_module_name":9,"category_name":20,"show_sort_weight":21,"slug":22},4,"Exam",70,"exam",{"id":24,"doc_module":4,"doc_module_name":9,"category_name":25,"show_sort_weight":26,"slug":27},5,"Comic",60,"comic",{"id":29,"doc_module":4,"doc_module_name":9,"category_name":30,"show_sort_weight":31,"slug":32},6,"Technology",50,"technology",{"id":34,"doc_module":4,"doc_module_name":9,"category_name":35,"show_sort_weight":36,"slug":37},7,"Healthcare",40,"healthcare",{"id":39,"doc_module":4,"doc_module_name":9,"category_name":40,"show_sort_weight":41,"slug":42},8,"Research & Report",30,"research-report",{"id":44,"doc_module":4,"doc_module_name":9,"category_name":45,"show_sort_weight":46,"slug":47},9,"Religion & Spirituality",20,"religion-spirituality",{"id":46,"doc_module":4,"doc_module_name":9,"category_name":49,"show_sort_weight":46,"slug":50},"World Cup","world-cup",{"id":52,"doc_module":4,"doc_module_name":9,"category_name":53,"show_sort_weight":52,"slug":54},10,"Lifestyle","lifestyle",{"id":56,"doc_module":4,"doc_module_name":9,"category_name":57,"show_sort_weight":24,"slug":58},19,"General","general",{"code":4,"msg":60,"data":61},"ok",{"site_id":62,"language":63,"slug":64,"title":65,"keywords":66,"description":67,"schema_data":68,"social_meta":123,"head_meta":125,"extra_data":127,"updated_unix":129},105,"en","phase-stability-diagrams-module-21-hsc-chemistry","Phase Stability Diagrams - Module 21 - HSC chemistry","","Phase stability diagrams describe the stability (predominance) regions of condensed phases in a ternary system as a function of temperature or under isothermal conditions, using a ternary diagram framework. The document explains how the HSC Chemistry software builds these diagrams under the assumption that phases are pure substances, and that mixture phases are not included in basic diagrams. It introduces two diagram modules: Tpp (minimum Gibbs energy with area graphics) and Lpp (phase boundaries from reaction equations with vector graphics), and outlines their main options, constraints, and plotting workflows.",{"@graph":69,"@context":122},[70,84,105],{"@type":71,"itemListElement":72},"BreadcrumbList",[73,77,79,82],{"item":74,"name":75,"@type":76,"position":8},"https://docshare.wps.com","Home","ListItem",{"item":78,"name":9,"@type":76,"position":14},"https://docshare.wps.com/document/",{"item":80,"name":30,"@type":76,"position":81},"https://docshare.wps.com/document/technology/",3,{"item":83,"name":65,"@type":76,"position":19},"https://docshare.wps.com/document/phase-stability-diagrams-module-21-hsc-chemistry/656797/",{"url":83,"name":65,"@type":85,"image":86,"author":91,"headline":65,"publisher":94,"fileFormat":97,"inLanguage":63,"description":67,"dateModified":98,"datePublished":99,"encodingFormat":97,"isAccessibleForFree":100,"interactionStatistic":101},"DigitalDocument",{"url":87,"@type":88,"width":89,"height":90},"https://docshare.wps.com/thumbnails/phase-stability-diagrams-module-21-hsc-chemistry/656797.png","ImageObject",300,407,{"name":92,"@type":93},"QWQ","Person",{"url":74,"name":95,"@type":96},"DocShare","Organization","application/pdf","2026-10-30","2026-10-25",true,{"@type":102,"interactionType":103,"userInteractionCount":24},"InteractionCounter",{"@type":104},"ViewAction",{"@type":106,"mainEntity":107},"FAQPage",[108,114,118],{"name":109,"@type":110,"acceptedAnswer":111},"What do phase stability diagrams represent in a ternary system?","Question",{"text":112,"@type":113},"They show the stability (predominance) areas of condensed phases as functions of temperature or in isothermal conditions. The remaining constraints are represented by the other axis.","Answer",{"name":115,"@type":110,"acceptedAnswer":116},"How does the Tpp Diagram module compute diagrams?",{"text":117,"@type":113},"It calculates diagrams based on minimum Gibbs energy and uses area graphics. It performs recursive calculations with a preset resolution and a specific logout algorithm, without checking every x-and y-point to reduce computation time.",{"name":119,"@type":110,"acceptedAnswer":120},"What key limitations and input rules apply to both Tpp and Lpp diagram modules?",{"text":121,"@type":113},"Only three elements can be selected simultaneously. Also, only two variables can be used for the diagram: if partial pressures are selected for both axes, temperature must be fixed; if temperature is on the x-axis and partial pressure on the y-axis, one partial pressure must be fixed, and its species must not contain more elements than the y-axis species.","https://schema.org",{"og:url":83,"og:type":124,"og:title":65,"og:site_name":95,"og:description":67},"article",{"robots":126,"canonical":83},"index,follow",{"doc_id":128,"site_id":62},656797,1793029858,{"code":4,"msg":5,"data":131},{"doc_id":128,"user_id":132,"nickname":92,"user_avatar":133,"doc_module":4,"category_id":29,"category_name":30,"doc_title":65,"doc_description":67,"doc_content":134,"file_id":135,"file_url":136,"file_type":137,"file_size":138,"view_count":24,"is_deleted":4,"is_public":8,"is_downloadable":8,"audit_status":8,"page_count":39,"language":139,"language_code":63,"site_id":62,"html_lang":63,"table_of_contents":140,"faqs":141,"seo_title":142,"seo_description":67,"update_tm":143,"read_time":46},962094510011,"https://ap-avatar.wpscdn.com/davatar_155a257f0dc6eb9ab79c44ca47cae57d","HSC – Phase Stability Diagrams 1/8  \nPetri Kobylin, Antti Roine September 6, 2023  \n21. Phase Stability Diagrams Modules  \nThe phase stability diagrams show the stability (predominance) areas of condensed phases in a ternary system as a function of temperature or in isothermal conditions, with the remaining constraints as the other axis. These diagrams are very useful when a fast estimation of the prevailing phases is needed. It is assumed that all phases are pure substances. Mixture phases are not taken into account in basic phase stability diagrams.  \nThe new HSC Chemistry can draw two types of phase stability diagrams. The Tpp Diagram module calculates the diagrams on the basis of minimum Gibbs energy (area graphics) and the Lpp Diagram module calculates the phase stability boundaries as lines based on the reaction equations (vector graphics) . These two modules have their own option buttons in the HSC main menu, i.e. Tpp Diagrams and Lpp Diagram buttons.  \nThe Tpp diagram module draws temperature partial pressure diagrams (T-p diagrams) as well as p-p diagrams with partial pressures on both axes. The Lpp module only draws diagrams with selected partial pressures on both axes. Both these modules offer slightly different benefits and limitations; for example, the Lpp module gives exact coordinates for the phase boundaries, whereas the Tpp module gives illustrative painted area diagrams and also a versatile T-p axis option.  \nA common limitation for both diagram modules is that only three elements can be selected simultaneously in the calculation system. Another basic feature is that only two variables can be selected for the diagram, i.e.:  \n1. If partial pressures are selected for both axes, then the temperature must be fixed.  \n2. If the temperature is selected for the x-axis and partial pressure for the y-axis, then one partial pressure must be fixed. The partial pressure species may not contain more elements than the species selected for the y-axis.  \nThe partial pressure pi of gas i in a gas mixture is defined by Equation (1):  \npi = xi · P (1)  \nwhere xi is the mole fraction of i in the mixture and P is the total pressure. The HSC phase stability diagrams use logarithmic scales for partial pressures, which are expressed in bar units (1 bar = 100 kPa = 0.987 atm) .  \nMetso reserves the right to modify these specifications at any time without prior notice. Copyright © 2023, Metso Finland Oy  \nHSC – Phase Stability Diagrams 2/8  \nPetri Kobylin, Antti Roine September 6, 2023  \n21.1. Tpp Diagram Module  \nFig. 1. Input data for Tpp phase stability diagrams.  \nThe Tpp Diagram module calculates phase stability diagrams using partial pressureson both axes or temperature on the x-axis and partial pressure on the y-axis. This module calculates the diagram on the basis of minimum Gibbs energy. However, it does not check each x-and y-point in order to decrease calculation time. The calculation is made recursively using the preset resolution and a specific logout algorithm.  \nThe user interface of the Tpp module is shown in Fig. 1 with an example of the Cu-S-O system. The diagram may be drawn using the following steps:  \n1. Select three elements from the element list and include organic species if needed.  \n2. Select the species for the diagram one by one or by pressing Select All. Keep the Ctrl key down if you want to remove some species from the selection.  \n3. Select the x-axis species and the range for the x-axis. This selection will always reset the default x-range settings.  \n4. Select the y-axis species and the range for the y-axis. This selection will always reset the default y-range settings.  \n5. Set one variable, either temperature in p-p diagrams or one partial pressure in Tp diagrams. Please also remember to give a value for temperature or a selected partial pressure. The default value for partial pressure is 1E-20 and for temperature 25 °C. Both °C and K units can be used.  \n6. Make a selection for the diagram layout o","cbCais49DVYRyhkz","https://ap.wps.com/l/cbCais49DVYRyhkz","pdf",336274,"English","# 21. Phase Stability Diagrams Modules\n## Tpp Diagram Module\n## Tpp Diagrams\n## Lpp Diagram Module","[{\"question\":\"What do phase stability diagrams represent in a ternary system?\",\"answer\":\"They show the stability (predominance) areas of condensed phases as functions of temperature or in isothermal conditions. The remaining constraints are represented by the other axis.\"},{\"question\":\"How does the Tpp Diagram module compute diagrams?\",\"answer\":\"It calculates diagrams based on minimum Gibbs energy and uses area graphics. It performs recursive calculations with a preset resolution and a specific logout algorithm, without checking every x-and y-point to reduce computation time.\"},{\"question\":\"What key limitations and input rules apply to both Tpp and Lpp diagram modules?\",\"answer\":\"Only three elements can be selected simultaneously. Also, only two variables can be used for the diagram: if partial pressures are selected for both axes, temperature must be fixed; if temperature is on the x-axis and partial pressure on the y-axis, one partial pressure must be fixed, and its species must not contain more elements than the y-axis species.\"}]","Phase Stability Diagrams - Module 21 - HSC chemistry | PDF",1792970979]