Influence of neutron irradiation on mechanical properties of vanadium/ceramics joints

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作者：
Tohoku Univ, Sendai, Japan [1 ]
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来源：
J Nucl Mater | / pt B卷 / 1528-1532期
关键词：
Bending strength - Ceramic materials - Fractography - Interfaces (materials) - Mechanical properties - Neutron irradiation - Vanadium alloys;
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摘要：
Neutron irradiation effects on bend strength of V/MgO and V/Al2O3 joints, which had been bonded at appropriate conditions, were studied to evaluate ceramic/metal joint for fusion materials using three-point bend test and fractography. Bend strength of V/Al2O3 joints was lowered by neutron irradiation, but that of V/MgO joints was not changed by neutron irradiation. It was considered that reduction of the strength of V/Al2O3 joints was not caused by the weakening of the interface, but caused by the formation of residual stress crack during irradiation.
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