RELATIONAL DATA STRUCTURE OF THE COATING DATABASE FROM THE COATINGS AND HIGH-TEMPERATURE CORROSION DATA-BANK

A data bank on coatings and high temperature corrosion, called C&HTC-D ATA, has been created and will be operated by the Corrosion Data Centr e at the University of Provence in Marseille - France. This data bank has been created to help to choose coatings for specific applications, knowing their fabrication process characteristics and their protectiv ity characteristics. C&HTC-DATA will include five databases, viz. 1) a bibliographic reference data base, 2) a coatings database, 3) a corro sion database, 4) an alloy composition database, and 5) a directory of addresses of companies and researchers involved in the field of high temperature corrosion and protection of materials. Four of these datab ases have been installed by the ORACLE Relational Data Base Management System (R.D.B.M.S.) and are in the beta stage of ''on line'' operatio n. In this paper the relational structure of the factual data on coati ngs in the coating database is discussed.