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European Colloquium on Interfaces Held in Petten The European Colloquium on "Designing Interfaces for Technological Applications: Ceramic-Ceramic, Ceramic-Metal Joining" was held April 20-21, 1988 in Petten, the Netherlands. It was sponsored and organized by the Joint Research Center (JRC), Petten Establishment within the framework of the Commission of the European Communities' role to support European industrial development. The meeting's objective was to assess the potential of an interfacial science approach to improve the technology of joining ceramic materials. Joining is recognized as a critical factor in determining the acceptability of the new generation of engineering ceramics as components in industrial service. JRC Petten, the host site of the colloquium, has an established tradition in high temperature materials research. The center, which has conducted extensive research in high temperature mechanical and corrosion properties of advanced ceramics, now has an ambitious research program on tailoring interfaces for ceramic joining and composites. The colloquium was attended by 120 participants from research centers, universities and industrial laboratories. It covered three main subject areas, with topics in each area reviewed by invited eminent specialists as follows: Joining Technology—technical requirements for designing interfaces for thermomechanical applications (D. Parker, T&N Technology Ltd., UK) and for electronic applications (K. Guy, GEC Research Ltd., UK); joining methods for structural ceramics (M. Nicholas, UKAEA-Harwell, UK); testing and mechanical properties of joints (G. Elssner, Max-Planck Institute, W. Germany), and fracture of joints (G. de With, Phillips Research Labs, Netherlands). Interfacial Science—thermodynamics of ceramic/metal interfaces (J- Klomp, TNO University, Netherlands); structure of interfaces (M. Ruhle, University of California, Santa Barbara, USA); wetting and adhesion (N. Eustathopoulos, LTPCMCNRS, France); and theoretical aspects of bonding (K. Stoneham, UKAEA-HarweU, UK). Current Research and Outlook—review of R&D program in Europe (K. Ostijn, Belgian Welding Institute, Belgium), the United States (R. Loehman, Sandia National Labs, USA), and Japan (T. Suga, University of Tokyo, Japan); materials to be joined in 10 years from now (M. Lewis, University, Warwick, UK).
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The colloquium was followed by a halfday workshop chaired by Prof. Fischmeister (Max-Planck Institute, W. Germany) in which the invited speakers and a number of selected experts participated. Its aim was to identify research needs, decide whether the bridging concept between interfacial science and joining technology is valid, and recommend research trends and follow-up actions. The workshop proved to be a valuable contribution to the colloquium and produced much constructive discussion. The workshop findings will be published in the colloquium proceedings. For information about the colloquium proceedings contact: Materials Information Center, CEC, JRC Petten, Postbus 2, NL-1755 ZG Petten, Netherlan
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