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Title: Plugging micro-leaks in multi-component, ceramic tubesheets with material leached therefrom

Abstract

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.

Inventors:
;
Issue Date:
OSTI Identifier:
7250598
Patent Number(s):
4505995 A
Application Number:
PPN: US 6-312588
Assignee:
Dow Chemical Co., Midland, MI (United States) PTO; EDB-94-123248
DOE Contract Number:  
AC02-76ET25103
Resource Type:
Patent
Resource Relation:
Patent File Date: 19 Oct 1981
Country of Publication:
United States
Language:
English
Subject:
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

Citation Formats

Bieler, B.H., and Tsang, F.Y. Plugging micro-leaks in multi-component, ceramic tubesheets with material leached therefrom. United States: N. p., 1985. Web.
Bieler, B.H., & Tsang, F.Y. Plugging micro-leaks in multi-component, ceramic tubesheets with material leached therefrom. United States.
Bieler, B.H., and Tsang, F.Y. Tue . "Plugging micro-leaks in multi-component, ceramic tubesheets with material leached therefrom". United States.
@article{osti_7250598,
title = {Plugging micro-leaks in multi-component, ceramic tubesheets with material leached therefrom},
author = {Bieler, B.H. and Tsang, F.Y.},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1985},
month = {3}
}