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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.

Inventors:
 [1];  [1]
  1. (Walnut Creek, CA)
Issue Date:
Research Org.:
GULF & WESTERN MFG CO
OSTI Identifier:
865379
Patent Number(s):
4505995
Application Number:
06/312,588
Assignee:
Dow Chemical Company (Midland, MI) BNL
DOE Contract Number:  
AC02-76ET25103
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
plugging; micro-leaks; multi-component; ceramic; tubesheets; material; leached; therefrom; cracks; wall; micron; width; plugged; helium-tight; selectively; leaching; component; solvent; letting; resultant; leach; form; liquid; bridge; crack; removing; sintering; residue; method; particular; value; remedying; microcracks; channels; cell; constituting; tubesheet; hollow; fiber; type; temperature; battery; sodium; sulfur; example; battery cell; particular value; ceramic tube; sulfur cell; hollow fiber; ceramic tubes; temperature battery; /429/29/

Citation Formats

Bieler, Barrie H., and Tsang, Floris Y. Plugging micro-leaks in multi-component, ceramic tubesheets with material leached therefrom. United States: N. p., 1985. Web.
Bieler, Barrie H., & Tsang, Floris Y. Plugging micro-leaks in multi-component, ceramic tubesheets with material leached therefrom. United States.
Bieler, Barrie H., and Tsang, Floris Y. Tue . "Plugging micro-leaks in multi-component, ceramic tubesheets with material leached therefrom". United States. https://www.osti.gov/servlets/purl/865379.
@article{osti_865379,
title = {Plugging micro-leaks in multi-component, ceramic tubesheets with material leached therefrom},
author = {Bieler, Barrie H. and Tsang, Floris 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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1985},
month = {3}
}

Patent:

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