Sintering of beta-type alumina bodies using alpha-alumina encapsulation
Abstract
A method of sintering a shaped green, beta-type alumina body comprising: (A) inserting said body into an open chamber prepared by exposing the interior surface of a container consisting essentially of at least about 50 weight percent of alpha-alumina and a remainder of other refractory material to a sodium oxide or sodium oxide producing environment; (B) sealing the chamber; and heating the chamber with the shaped body encapsulated therein to a temperature and for a time necessary to sinter said body to the desired density. The encapsulation chamber prepared as described above is also claimed.
- Inventors:
-
- Salt Lake City, UT
- Midvale, UT
- Issue Date:
- Research Org.:
- Ford Motor Company, Detroit, MI (United States)
- OSTI Identifier:
- 863865
- Patent Number(s):
- 4263381
- Assignee:
- United States of America as represented by United States (Washington, DC)
- Patent Classifications (CPCs):
-
C - CHEMISTRY C04 - CEMENTS C04B - LIME, MAGNESIA
- DOE Contract Number:
- EY-76-C-02-2566
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- sintering; beta-type; alumina; bodies; alpha-alumina; encapsulation; method; shaped; green; comprising; inserting; chamber; prepared; exposing; interior; surface; container; consisting; essentially; 50; weight; percent; remainder; refractory; material; sodium; oxide; producing; environment; sealing; heating; encapsulated; therein; temperature; time; sinter; desired; density; described; claimed; refractory material; consisting essentially; weight percent; interior surface; sodium oxide; desired density; encapsulated therein; beta-type alumina; /429/264/
Citation Formats
McEntire, Bryan J, and Virkar, Anil V. Sintering of beta-type alumina bodies using alpha-alumina encapsulation. United States: N. p., 1981.
Web.
McEntire, Bryan J, & Virkar, Anil V. Sintering of beta-type alumina bodies using alpha-alumina encapsulation. United States.
McEntire, Bryan J, and Virkar, Anil V. Thu .
"Sintering of beta-type alumina bodies using alpha-alumina encapsulation". United States. https://www.osti.gov/servlets/purl/863865.
@article{osti_863865,
title = {Sintering of beta-type alumina bodies using alpha-alumina encapsulation},
author = {McEntire, Bryan J and Virkar, Anil V},
abstractNote = {A method of sintering a shaped green, beta-type alumina body comprising: (A) inserting said body into an open chamber prepared by exposing the interior surface of a container consisting essentially of at least about 50 weight percent of alpha-alumina and a remainder of other refractory material to a sodium oxide or sodium oxide producing environment; (B) sealing the chamber; and heating the chamber with the shaped body encapsulated therein to a temperature and for a time necessary to sinter said body to the desired density. The encapsulation chamber prepared as described above is also claimed.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Thu Jan 01 00:00:00 EST 1981},
month = {Thu Jan 01 00:00:00 EST 1981}
}
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