Processing and mechanical properties of silicon nitride formed by robocasting aqueous slurries
Conference
·
OSTI ID:751130
Robocasting is a new freeform fabrication technique for dense ceramics. It uses robotics to control deposition of ceramic slurries through an orifice. The optimization of concentrated aqueous Si{sub 3}N{sub 4} slurry properties to achieve high green density robocast bodies and subsequent high sintered densities was investigated. The effects of pH, electrolyte, additives and solids loading on the dispersion and rheological properties of Si{sub 3}N{sub 4} slurries were determined. The mechanical behavior of sintered robocast bars was determined and compared to conventionally produced silicon nitride ceramics.
- 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:
- 751130
- Report Number(s):
- SAND2000-0284C; TRN: AH200020%%98
- Resource Relation:
- Conference: 24th Annual Cocoa Beach Conference on Engineering Ceramics and Structures, Cocoa Beach, FL (US), 01/23/2000--01/28/2000; Other Information: PBD: 26 Jan 2000
- Country of Publication:
- United States
- Language:
- English
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