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

Patent · 21 October 2008

OSTI ID:985347

Peascoe-Meisner, Roberta A ^[1]; Keiser, James R ^[2]; Hemric, James G ^[1]; Hubbard, Camden R ^[2]; Gorog, J Peter ^[3]; Gupta, Amul ^[4]

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1. Knoxville, TN
2. Oak Ridge, TN
3. Kent, WA
4. Jamestown, NY

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.

• Research Organization: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC05-00OR22725
• Assignee: UT-Battelle, LLC (Oak Ridge, TN)
• Patent Number(s): 7,438,004
• Application Number: 11/207,320
• OSTI ID: 985347
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY