Objective The aim of the programme was to optimize several metallization processses of composite surfaces in order to improve their electrical and mechanical properties. These were 3 dry processes: silver and aluminium sputtering, chromium and silicon reactive sputtering, aluminium and zinc flame spraying, and 1 wet process: electroless plating of nickel before silver electrodeposition. A new surface activating process by Corona treatment has been evaluated as pretreatment for composite adhesive bonding. The studies are finished and the optimization of the metallization processes has been completed. Characterization test results allowed the appearance of fields of application for each process. Among them aluminium and silver sputtering, and chromium and silicon reactive sputtering are the more suitable to be industrially applied on composite surfaces. Aluminium and zinc thermal spraying can be used for repairs of metallization. Silver electrodeposition on electroless plated nickel is a process very difficult to apply on an industrial scale. Corona treatment needs further investigation to confirm its ability to improve composite bonding properties.The use of composites materials in the aircraft industry allows weight saving and manufacturing cost benefits but their surface properties are insufficient to cover the electrical, mechanical and chemical specifications of aircraft structures. In this programme : 1.Several metallization processes will be optimized to be industrially applied on composites surfaces in order to improve their electrical and mechanical properties : - two dry processes : physical vapour deposition (sputtering) and thermal plasma spraying - one wet process : electroless plating. The deposited layers and coated systems properties will be studied to check that they meet the required specifications. 2. A new surface activating process "corona treatment" will be evaluated as a pretreatment for adhesive bonding in terms of adhesion properties processing cost and quality control equipment. Fields of science engineering and technologymaterials engineeringcompositesnatural scienceschemical sciencesinorganic chemistrytransition metalsengineering and technologymechanical engineeringvehicle engineeringaerospace engineeringaircraftnatural scienceschemical sciencesinorganic chemistrypost-transition metalsnatural scienceschemical sciencesinorganic chemistrymetalloids Programme(s) FP2-BRITE/EURAM 1 - Specific research and technological development programme (EEC) in the fields of industrial manufacturing technologies and advanced materials applications (BRITE/EURAM), 1989-1992 Topic(s) Data not available Call for proposal Data not available Funding Scheme Data not available Coordinator Dassault Aviation SA EU contribution No data Address 78 Quai Marcel Dassault 92214 Saint-Cloud France See on map Total cost No data Participants (5) Sort alphabetically Sort by EU Contribution Expand all Collapse all Aérospatiale Société Nationale Industrielle SA France EU contribution No data Address 37 boulevard de Montmorency 75781 Paris See on map Total cost No data Commissariat à l'Energie Atomique (CEA) France EU contribution No data Address Centre d'Études de Grenoble Avenue des Martyrs 38041 Grenoble See on map Total cost No data Fokker Aircraft BV Netherlands EU contribution No data Address Hoogoorddreef 15 1100 AE AMSTERDAM See on map Total cost No data Messerschmitt-Bölkow-Blohm GmbH (MBB) Germany EU contribution No data Address 8000 MÜNCHEN See on map Total cost No data Societe de Galvanoplastie Industrielle SA France EU contribution No data Address 51 rue Pierre Curie Zone Industrielle des Gatines 78373 Plaisir See on map Total cost No data
