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MgAl2O4 spinel refractory as containment liner for high-temperature alkali salt containing environments

United States Patent

7,438,004
October 21, 2008
View the Complete Patent at the US Patent & Trademark Office
Oak Ridge National Laboratory - Visit the Partnerships Directorate Website
A method includes containing a high-temperature alkali salt containing environment using a refractory containment liner containing MgAl.sub.2O.sub.4 spinel. A method, includes forming a refractory brick containing MgAl.sub.2O.sub.4 spinel having an exterior chill zone defined by substantially columnar crystallization and an interior zone defined by substantially equiaxed crystallization; and removing at least a portion of the exterior chill zone from the refractory brick containing MgAl.sub.2O.sub.4 spinel by scalping the refractory brick containing MgAl.sub.2O.sub.4 spinel to define at least one outer surface having an area of substantially equiaxed crystallization. A product of manufacture includes a refractory brick containing MgAl.sub.2O.sub.4 spinel including an interior zone defined by substantially equiaxed crystallization; and at least one outer surface having an area of substantially equiaxed crystallization.
Peascoe-Meisner; Roberta A. (Knoxville, TN), Keiser; James R. (Oak Ridge, TN), Hemrick; James G. (Knoxville, TN), Hubbard; Camden R. (Oak Ridge, TN), Gorog; J. Peter (Kent, WA), Gupta; Amul (Jamestown, NY)
UT-Battelle, LLC (Oak Ridge, TN)
11/ 207,320
20070042896
August 19, 2005
FEDERALLY-SPONSORED RESEARCH OR DEVELOPMENT This invention was made with United States Government support under prime contract No. DE-AC05-00OR22725 to UT-Battelle, L.L.C. awarded by the Department of Energy. The Government has certain rights in this invention.