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Title: 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:
 [1];  [2]
  1. Salt Lake City, UT
  2. 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 = {1981},
month = {1}
}