The European Colloquium on Ceramics in Advanced Energy Technology dealt with structural, mechanical, thermo-physical, chemical and electrical/electronics aspects of ceramics, as candidates materials in advanced energy conversion systems. The technical programme included the presentation of 22 invited papers. The Colloquium was concluded by a panel discussion which was preceeded by a presentation on the Ceramic Fabrication. For convenience, papers and discussions are arranged in the same way as they were presented at the Colloquium, followed by the conclusions drawn by the panel members. The editors wish to express their gratitude to the authors for the preparation and the presentation of their papers and to the Colloquium participants for providing their discussion contributions. They also acknowledge the valuable contributions to the planning and realisation of the Colloquium made by the representatives of the various sponsoring and co-sponsoring organisations. The excellent guidance of the Colloquium discussion periods exercised by the session chairmen is highly appreciated as well as the efforts of the panel members to prepare the conclusions from the Colloquium sessions. The contributions of all others which assured a successful Colloquium from which these proceedings evolved are gratefully appreciated. In a Post-Colloquium Workshop a number of experts discussed results obtained from the Colloquium and identified areas warranting future R&D efforts. The conclusions drawn from the Workshop are annexed to these proceedings. The Editors. ix Welcome and opening P.J. van Westen, C.E.C., D.G. XII, J.R.C., Petten Establishment.