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:
-
- 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}
}
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