Sealing of Al-containing stainless steel to lithia-alumina-silica glass-ceramic
Recent work on a new glass-ceramic/alloy for pyrotechnic components is discussed. A newly developed family of austenitic stainless steels has been hermetically sealed to a widely used lithia-alumina-silica (LAS) glass-ceramic. These alloys, originally developed for high oxidation resistance, contain 4-5 wt% Al. The presence of Al offers several advantages from a glass or glass/ceramic sealing point of view: presence of a tenacious, stable oxide (Al{sub 2}O{sub 3}) 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 compared to the widely used Ni-base superalloys.
- Research Organization:
- EG and G Mound Applied Technologies, Miamisburg, OH (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- AC04-76DP00053
- OSTI ID:
- 274154
- Report Number(s):
- MLM-3584(OP); ON: DE96013418
- Resource Relation:
- Other Information: PBD: [1989]
- Country of Publication:
- United States
- Language:
- English
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