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Title: Method for preparing Pb-.beta."-alumina ceramic

Abstract

A process is disclosed for preparing impermeable, polycrystalline samples of Pb-.beta."-alumina ceramic from Na-.beta."-alumina ceramic by ion exchange. The process comprises two steps. The first step is a high-temperature vapor phase exchange of Na by K, followed by substitution of Pb for K by immersing the sample in a molten Pb salt bath. The result is a polycrystalline Pb-.beta."-alumina ceramic that is substantially crack-free.

Inventors:
 [1]
  1. Albuquerque, NM
Issue Date:
Research Org.:
AT&T
OSTI Identifier:
865828
Patent Number(s):
4585635
Assignee:
United States of America as represented by United States (Washington, DC)
Patent Classifications (CPCs):
C - CHEMISTRY C01 - INORGANIC CHEMISTRY C01F - COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
C - CHEMISTRY C04 - CEMENTS C04B - LIME, MAGNESIA
DOE Contract Number:  
AC04-76DP00789
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
method; preparing; pb-; beta; -alumina; ceramic; process; disclosed; impermeable; polycrystalline; samples; na-; exchange; comprises; steps; step; high-temperature; vapor; phase; na; followed; substitution; pb; immersing; sample; molten; salt; bath; result; substantially; crack-free; salt bath; process comprises; vapor phase; alumina ceramic; -alumina ceramic; /423/

Citation Formats

Hellstrom, Eric E. Method for preparing Pb-.beta."-alumina ceramic. United States: N. p., 1986. Web.
Hellstrom, Eric E. Method for preparing Pb-.beta."-alumina ceramic. United States.
Hellstrom, Eric E. Wed . "Method for preparing Pb-.beta."-alumina ceramic". United States. https://www.osti.gov/servlets/purl/865828.
@article{osti_865828,
title = {Method for preparing Pb-.beta."-alumina ceramic},
author = {Hellstrom, Eric E},
abstractNote = {A process is disclosed for preparing impermeable, polycrystalline samples of Pb-.beta."-alumina ceramic from Na-.beta."-alumina ceramic by ion exchange. The process comprises two steps. The first step is a high-temperature vapor phase exchange of Na by K, followed by substitution of Pb for K by immersing the sample in a molten Pb salt bath. The result is a polycrystalline Pb-.beta."-alumina ceramic that is substantially crack-free.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1986},
month = {1}
}

Patent:

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