Joining SI3N4 for Advanced Turbomachinery Applications
The main objective of this project was to develop reliable, low-cost techniques for joining silicon nitride (Si{sub 3}N{sub 4}) to itself and to metals. For Si{sub 3}N{sub 4} to be widely used in advanced turbomachinery applications, joining techniques must be developed that are reliable, cost-effective, and manufacturable. This project addressed those needs by developing and testing two Si{sub 3}N{sub 4} joining systems; oxynitride glass joining materials and high temperature braze alloys. Extensive measurements were also made of the mechanical properties and oxidation resistance of the braze materials. Finite element models were used to predict the magnitudes and positions of the stresses in the ceramic regions of ceramic-to-metal joints sleeve and butt joints, similar to the geometries used for stator assemblies.
- Research Organization:
- Sandia National Lab. (SNL-NM), Albuquerque, NM (United States); Sandia National Lab. (SNL-CA), Livermore, CA (United States)
- Sponsoring Organization:
- US Department of Energy (US)
- DOE Contract Number:
- AC04-94AL85000
- OSTI ID:
- 760738
- Report Number(s):
- SAND2000-1559; TRN: US200311%%216
- Resource Relation:
- Other Information: PBD: 1 Jul 2000
- Country of Publication:
- United States
- Language:
- English
Similar Records
International Forum on Structural Ceramics Joining, Pittsburgh, PA, Apr. 28, 29, 1987, Proceedings
Oxynitride glass braze interactions in silicon nitride joining