| Autor: |
W.E. Moddeman, R.T. Cassidy |
| Rok vydání: |
2008 |
| Předmět: |
|
| Zdroj: |
A Collection of Papers Presented at the 13th Annual Conference on Composites and Advanced Ceramic Materials, Part 2 of 2: Ceramic Engineering and Science Proceedings, Volume 10, Issue 9/10 |
| DOI: |
10.1002/9780470310588.ch51 |
| Popis: |
Recent work carried out on a new glass-ceramic/alloy material set for the application of pyrotechnic components is discussed. A newly developed family of austenitic stainless steels has been hermetically sealed to a widely used lithia-alumina-silica glass-ceramic. These alloys, originally developed for applications where high oxidation resistance is required, contain 4-5 wt pct aluminum. The presence of aluminum offers several advantages from a glass or glass-ceramic sealing point of view. These include the presence of a tenacious, stable oxide (Al2O3) on the alloys' surface as well as the fact that they can be strengthened during sealing via precipitation of a secondary phase, NiAl. In addition, these new alloys offer lower material and machining costs, and improved weldability when compared to the widely used Ni-based superalloys. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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