【摘 要】
：
The combination of irradiation tolerance,high strength,and thermal stability is a key requirement for structural materials used in nuclear reactor cores.It is challenging to develop bulk materials pos
【机 构】
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Center for Advancing Materials Performance from the Nanoscale,State Key Laboratory for Mechanical Be
【出 处】
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第13届中日双边先进能源系统和聚变裂变工程材料会议(CIS-13)
论文部分内容阅读
The combination of irradiation tolerance,high strength,and thermal stability is a key requirement for structural materials used in nuclear reactor cores.It is challenging to develop bulk materials possessing all three properties because of apparently intrinsic trade-offs among them.We report a novel interface engineering strategy that simultaneously achieves superior irradiation tolerance,high strength,and high thermal stability in bulk nanolayered Cu-Nb composites.By synthesizing Cu-Nb composites containing interfaces with controlled sink efficiencies,we design a material in which nearly all irradiation-induced defects are annihilated.In contrast to grain boundaries in single-phase metals,the Cu-Nb interfaces in these composites remain stable and void free.Interface engineered bulk composites are adaptable to large-scale industrial production and exemplify an innovative approach to design interface-dominated materials that eliminate the trade-offs that constrain conventional alloy design.References: Acta Mater 60(2012)6341,Adv Mater 25(2013)6975,JMR 28(2013)2763 and JNM 452(2014)57.
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