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U.S. Department of Energy
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High temperature materials for radioactive waste incineration and vitrification. Revision 1

Conference ·
OSTI ID:5338092
Incineration or vitrification of radioactive waste subjects equipment to alkaline or acidic fluxing, oxidation, sulfidation, carburization, and thermal shock. It is necessary to select appropriate materials of construction and control operating conditions to avoid rapid equipment failure. Nickel- and cobalt-based alloys with high chromium or aluminum content and aluminum oxide/chromium oxide refractories with high chromium oxide content have provided the best service in pilot-scale melter tests. Inconel 690 and Monofrax K-3 are being used for waste vitrification. Haynes 188 and high alumina refractory are undergoing pilot scale tests for incineration equipment. Laboratory tests indicate that alloys and refractories containing still higher concentrations of chromium or chromium oxide, such as Inconel 671 and Monofrax E, may provide superior resistance to attack in glass melter environments.
Research Organization:
Savannah River Lab., Aiken, SC (USA); Carnegie-Mellon Univ., Pittsburgh, PA (USA). Dept. of Metallurgy and Materials Science
DOE Contract Number:
AC09-76SR00001
OSTI ID:
5338092
Report Number(s):
DP-MS-85-152-Rev.1; CONF-860418-13-Rev.1; ON: DE86015691
Country of Publication:
United States
Language:
English