Casting of particle-based hollow shapes
A method is disclosed for the production of hollow articles made of a particle-based material; e.g., ceramics and sintered metals. In accordance with one aspect of the invention, a thermally settable slurry containing a relatively high concentration of the particles is coated onto a prewarmed continuous surface in a relatively thin layer so that the slurry is substantially uniformly coated on the surface. The heat of the prewarmed surface conducts to the slurry to initiate a reaction which causes the slurry to set or harden in a shape conforming to the surface. The hardened configurations may then be sintered to consolidate the particles and provide a high density product. 9 figs.
- Issue Date:
- OSTI Identifier:
- 63454
- Assignee:
- Martin Marietta Energy Systems, Inc., Oak Ridge, TN (United States) PTO; SCA: 360101; 360201; PA: EDB-95:091000; SN: 95001401194
- Patent Number(s):
- US 5,419,860/A/
- Application Number:
- PAN: 8-083,965
- Contract Number:
- AC05-84OR21400
- Resource Relation:
- Other Information: PBD: 30 May 1995
- Research Org:
- Lockheed Martin Energy Syst Inc
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE; METALS; CASTING; CERAMICS; SHAPE; SINTERING; SLURRIES
Similar records in DOepatents and OSTI.GOV collections: