Radiation tolerance of M{sub n+1}AX{sub x} phases, Ti{sub 3}ALC{sub 2} and Ti{sub 3}SIC{sub 2}.

Journal Article · Fri Jan 01 00:00:00 EST 2010 · Acta Materialia

DOI:https://doi.org/10.1016/j.actamat.2010.04.029· OSTI ID:1010904

Whittle, K R; Blackford, M G; Aughterson, R D; Moricca, S; Lumpkin, G R; Riley, D P; Zaluzec, N J ^[1]

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1. Materials Science Division

During investigations of novel material types with uses in future nuclear technologies (ITER/DEMO and GenIV fission reactors), ternary carbides with compositions Ti{sub 3}AlC{sub 2} and Ti{sub 3}SiC{sub 2} have been irradiated with high Xe fluences, 6.25 x 10{sup 15} ions cm{sup -2} ({approx}25-30 dpa), using the IVEM-TANDEM facility at Argonne National Laboratory. Both compositions show high tolerance to damage, and give indications that they are likely to remain crystalline to much higher fluences. There is a visible difference in tolerance between Ti{sub 3}AlC{sub 2} and Ti{sub 3}SiC{sub 2} that can be related to the changes in bonding within each material. These initial findings provide evidence for a novel class of materials (+200 compounds) with high radiation resistance, while, significantly, both of these materials are composed of low-Z elements and hence exhibit no long-term activation.

• Research Organization: Argonne National Lab. (ANL), Argonne, IL (United States)
• Sponsoring Organization: USDOE Office of Science (SC)
• DOE Contract Number: DE-AC02-06CH11357
• OSTI ID: 1010904
• Report Number(s): ANL/MSD/JA-69357; TRN: US201109%%170
• Journal Information: Acta Materialia, Vol. 58, Issue 2010
• Country of Publication: United States
• Language: ENGLISH

Related Subjects

36 MATERIALS SCIENCE
ALUMINIUM CARBIDES
BONDING
CARBIDES
IRRADIATION
PHYSICAL RADIATION EFFECTS
RADIATIONS
TITANIUM CARBIDES
TITANIUM SILICIDES
TOLERANCE
XENON IONS