Ceramic fabrication R D
This project is separated into three tasks. The first task is a design and modeling effort to be carried out by MSE, Inc. The purpose of this task is to develop and analyze designs for various cohesive ceramic fabrication (CCF) components. This quarter, the advanced molybdenum disicilide MHD electrode design was essentially completed. Final refinements will be made after molybdenum disilicide processing results are available and the final layer compositions are established. Work involving whisker incorporation was initiated on the high stress component. It is unlikely that whiskers will become low cost, so particulate reinforcement will be pursued. Modeling work will resume once a suitable aluminum oxide/silicon carbide composition is selected that can be fired to acceptable densities by pressureless sintering. Task 2, subcontracted to Applied Technology Laboratories (ATL), is principally directed at establishing a property data base for monolithic and laminated alumina fabricated using the CCF process. This quarter, ATL demonstrated that the CCF process does not compromise the flexure strength of alumina. Task 3, subcontracted to Ceramics Binder Systems, Inc., focused on CCF silicon carbide particulate reinforced alumina and on the development of processing procedures for nonoxide molybdenum disilicide. Preliminary results indicate that achieving high densities in silicon carbide particulate reinforced aluminum oxide will be difficult. Molybdenum disilicide results are encouraging, and it is clear that the CCF process will work with this nonoxide material. 3 refs., 18 figs., 4 tabs.
- Research Organization:
- MSE, Inc., Butte, MT (USA)
- Sponsoring Organization:
- DOE/FE
- DOE Contract Number:
- AC07-88ID12735
- OSTI ID:
- 6238925
- Report Number(s):
- DOE/ID/12735-T13; ON: DE91006537
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
36 MATERIALS SCIENCE
ALUMINIUM OXIDES
FLEXURAL STRENGTH
CERAMICS
FABRICATION
ELECTRODES
DESIGN
MOLYBDENUM SILICIDES
PHYSICAL PROPERTIES
PROCESSING
ARMOR
DOPED MATERIALS
MAGNETOHYDRODYNAMICS
MICROSTRUCTURE
PROGRESS REPORT
SILICON CARBIDES
SINTERING
WHISKERS
ALUMINIUM COMPOUNDS
CARBIDES
CARBON COMPOUNDS
CHALCOGENIDES
CRYSTAL STRUCTURE
CRYSTALS
DOCUMENT TYPES
FLUID MECHANICS
HYDRODYNAMICS
MATERIALS
MECHANICAL PROPERTIES
MECHANICS
MOLYBDENUM COMPOUNDS
MONOCRYSTALS
OXIDES
OXYGEN COMPOUNDS
REFRACTORY METAL COMPOUNDS
SILICIDES
SILICON COMPOUNDS
TRANSITION ELEMENT COMPOUNDS
300103* - MHD Generators- Materials
Components
& Auxiliaries
360201 - Ceramics
Cermets
& Refractories- Preparation & Fabrication
360203 - Ceramics
Cermets
& Refractories- Mechanical Properties
360204 - Ceramics
Cermets
& Refractories- Physical Properties