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Title: Special purpose materials for fusion application

Conference ·
OSTI ID:6263345

Originally in 1978 the Special Purpose Materials Task Group was concerned with tritium breeding materials, coolants, tritium barriers, graphite and silicon carbide, ceramics, heat-sink materials, and magnet components. Since then several other task groups have been created, so now the category includes only materials for superconducting magnets and ceramics. For the former application copper-stabilized Nb/sub 3/Sn (Ti) insulated with polyimides will meet the general requirements, so that testing of prototype components is the priority task. Ceramics are required for several critical components of fusion reactors either as dielectrics or as a structural material. Components near the first wall will receive exposures of 5 to 20 MW.year/m/sup 2/. Other ceramic applications are well behind the first wall, with lower damage levels. Most insulators operate near room temperature, but ceramic blanket structures may operate up to 1000/sup 0/C. Because of a meager data base, one cannot identify optimum ceramics for structural application; but MgAl/sub 2/O/sub 4/ is an attractive dielectric material.

Research Organization:
Oak Ridge National Lab., TN (USA); Los Alamos National Lab., NM (USA)
DOE Contract Number:
AC05-84OR21400
OSTI ID:
6263345
Report Number(s):
CONF-841246-8; ON: DE85005346
Resource Relation:
Conference: 1. international conference on fusion reactor materials, Tokyo, Japan, 3 Dec 1984
Country of Publication:
United States
Language:
English