|About this Abstract
||Materials Science & Technology 2019
||Emergent Materials under Extremes and Decisive In-situ Characterizations
||Exploring Radiation Resistance of Metal/Carbon Interface by In-situ Heavy Ion Irradiated Study
||Yue Liu, Jin Li, Pengzheng Tang, Tongxiang Fan
|On-Site Speaker (Planned)
Energetic particle radiations induce severe microstructural damages, causing the failure of materials. Introducing defect sinks, such as interfaces and grain boundaries into these materials is effective to mitigate radiation damage. Metal-carbon interfaces have attracted attention recently and the metal-carbon nanotube (CNT) nanocomposites with prolific metal/carbon interfaces demonstrate good structural stability under radiation environments, as well as a reduced level of radiation damage. Instead of 1D CNT, we explore metal-carbon nanocomposites with 2D interfaces, and compare it to conventional 2D grain boundaries. In-situ radiation in TEM is an ideal way to compare the efficiency of different interfaces in the alleviation of radiation-induced defects. Experimental results show that the metal/carbon interface has shown a larger effective zone to capture irradiated defects compared to the grain boundary. Atomistic modeling suggests that this type of interfaces can be regarded as “weak” interface, which may generate a continuous attractive force on the irradiation induced defects.
||Definite: At-meeting proceedings