Plugging micro-leaks in multi-component, ceramic tubesheets with material leached therefrom
Patent
·
OSTI ID:7250598
Cracks, in ceramic wall members, on the order of 1 micron or less in width are plugged helium-tight by selectively leaching a component of the wall member with a solvent, letting the resultant leach form a liquid bridge within the crack, removing the solvent and sintering the resultant residue. This method is of particular value for remedying microcracks or channels in a cell member constituting a tubesheet in a hollow fiber type, high temperature battery cell, such as a sodium/sulfur cell, for example. 1 fig.
- DOE Contract Number:
- AC02-76ET25103
- Assignee:
- Dow Chemical Co., Midland, MI (United States)
- Patent Number(s):
- US 4505995; A
- Application Number:
- PPN: US 6-312588
- OSTI ID:
- 7250598
- Resource Relation:
- Patent File Date: 19 Oct 1981
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
25 ENERGY STORAGE
36 MATERIALS SCIENCE
BATTERY SEPARATORS
REPAIR
CERAMICS
SINTERING
SODIUM-SULFUR BATTERIES
CRACKS
LEACHING
SIZE
DISSOLUTION
ELECTRIC BATTERIES
ELECTROCHEMICAL CELLS
FABRICATION
METAL-NONMETAL BATTERIES
SEPARATION PROCESSES
250903* - Energy Storage- Batteries- Materials
Components
& Auxiliaries
360201 - Ceramics
Cermets
& Refractories- Preparation & Fabrication
36 MATERIALS SCIENCE
BATTERY SEPARATORS
REPAIR
CERAMICS
SINTERING
SODIUM-SULFUR BATTERIES
CRACKS
LEACHING
SIZE
DISSOLUTION
ELECTRIC BATTERIES
ELECTROCHEMICAL CELLS
FABRICATION
METAL-NONMETAL BATTERIES
SEPARATION PROCESSES
250903* - Energy Storage- Batteries- Materials
Components
& Auxiliaries
360201 - Ceramics
Cermets
& Refractories- Preparation & Fabrication