IAS Phase Diagrams

Information-analytical system and database of digital images of phase diagrams and properties of ceramic materials

The aim of the project was to create a database on phase diagrams and properties of oxide materials, providing the user with reliable and complete information about the subject of research. A series of analytical subsystems and graphical methods have been developed to ensure completeness, complexity and clarity of perception of heterogeneous data. The ultimate goal of the development was a highly integrated software product with a core in the form of a database of digitized images of phase diagrams and material properties.

Within the framework of the project, an abstract model of the structure of relationships between information components of the system (data on phase diagrams, thermodynamic and other properties of compositions, data on material properties, data on theoretical models for calculating phase diagrams and for predicting material properties) was built. The structure of the database of the information-analytical system is proposed. Methods of digitization and visualization of phase diagrams have been developed. A series of software components has been created: TPD2Num and TPD3Num, which are the foundation for a system for digitizing scanned images of phase diagrams; TPD2View and TPD3View, which serve as base components for phase diagram image rendering modules. Based on the TPD2Num and TPD3Num components, a module for digitizing scanned images of phase diagrams has been created. On the basis of the TPD2View, TPD3View and TPDnView components, modules of the subsystem for visualizing data on phase diagrams are built. A subsystem for entering data on the properties of ceramic materials into the database, and a subsystem for displaying data in tabular form have also been developed. Several versions of user interfaces for subsystems of graphic display and analysis of data of digitized phase diagrams and for a subroutine for displaying the properties of ceramic materials have been created and analyzed, and ways of their optimization have been outlined. The search, selection and systematization of relevant information on a number of oxide systems was carried out.

The project was supported by the RFBR grant No. 01-07-90291

Project Manager: RAS Corresponding Member, prof. Victor Gusarov

Project executors: Researchers Galina  Kosulina and Vyacheslav Almjashev

View of the dynamic module for displaying the state diagram of SiO₂-Al₂O₃ binary system 

View of the dynamic module for displaying the state diagram of MgO-SiO₂-Al₂O₃ ternary system

View of the dynamic module for displaying data on phase equilibria of Al₂O₃-B₂O₃-CaO-FeO-MgO-Na₂O-SiO₂-UO₂-ZrO₂ multicomponent system 

The basis for filling will be a multivolume reference book edited by N.A. Toropov "The state diagrams of silicate systems" (from the fifth volume, the handbook is published under the title "The state diagrams of refractory oxide systems"), in which a large amount of data on the phase diagrams of oxide systems has been accumulated, analyzed and systematized since the 1940s