Wettability for understanding the behaviour of new filler materials for sinter-brazing
| Autor: | José Manuel Torralba, Mónica Campos, Andrea Galán-Salazar, O. Mårs, L. Kjellén |
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| Rok vydání: | 2017 |
| Předmět: |
Materials science
020502 materials Drop (liquid) Metallurgy Metals and Alloys Sintering 02 engineering and technology 021001 nanoscience & nanotechnology Condensed Matter Physics Microstructure Contact angle Sessile drop technique 0205 materials engineering Mechanics of Materials Materials Chemistry Ceramics and Composites Brazing Wetting 0210 nano-technology Dissolution |
| Zdroj: | Powder Metallurgy. 60:97-104 |
| ISSN: | 1743-2901 0032-5899 |
| Popis: | The success of the sinter-brazing technique depends on the control of the liquid phase of the brazing alloy. Therefore, it is necessary to design the composition of the brazer taking into account its wettability, infiltration capacity, chemical reaction with the base material and development of the final microstructure. The present work pretends to analyse the wettability of a new proposal for sinter-brazing, in order to understand the behaviour of the liquid phase during sintering. For that purpose, the sessile drop technique is used for tracking the variation of the contact angle on different substrates and atmospheres. Fe and FeC are the chosen substrates and the experiments will be carried out under inert (Ar) and reducing (N2–H2) conditions. After the wetting test, SEM microscopy allows analysing the cross-section of the drop/substrate interface, so that important phenomena can be observed, such as dissolution of the solid, diffusion of alloying elements and formation of precipitates. Besides... |
| Databáze: | OpenAIRE |
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