Insulating solids data in a computerized comprehensive on-linenumerical data base on dielectric materials

摘要

A computerized comprehensive numerical database on dielectricmaterials has been established and is online operational at the Centerfor Information and Numerical Data Analysis and Synthesis of PurdueUniversity. This database serves as a central source of technicalcommercial, and applications data on dielectric materials, and itdisseminates such data directly to designers, engineers, scientists,researchers, etc. across the nation. The database system is interactive,menu-driven, and user-friendly. It is readily accessible to any userfrom a computer terminal or personal computer via telephone lineswithout learning any special query language or commands. It makespossible both the direct mode of search/retrieval of data for specifiedmaterials, properties, independent variables, etc. and the inverted modeof search/retrieval of candidate materials that meet a specified set ofrequirements, which is the computer-aided materials selection. It alsoallows units conversion, variable transformation, statistical analysis,and interactive graphical manipulation of the retrieved data. While thisdatabase covers dielectric liquids, solids, gases, and combinationsthereof, the present work deals mainly with dielectric solids. So farthe data and information on dielectric solids contained in the databasecover some 1000 materials, 170 properties, and 70 independent variablesand parameters