Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7898468 | Journal of the European Ceramic Society | 2018 | 5 Pages |
Abstract
Assemblies of TZM alloy with alumina were obtained with a two-step process, much shorter than moly-manganese brazing methods. This new process involves, first, the preoxidation of the alloy in air at 795â¯Â°C, followed by hot-pressing in flowing argon, at 1700â¯Â°C under 22â¯MPa. The adherence of the joints, higher than 45â¯MPa, was explained by two complementary reasons: i) a mechanical contribution, of “tenon and mortise” type and ii) the penetrations of secondary phases (MoO2 and minor phases coming from alumina additives) into both materials that play the role of nails joining the alloy and the ceramics.
Keywords
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Réda Berkouch, Stéphane Valette, Joseph Absi, Pierre Lefort,