TY - JOUR
T1 - Effect of laser beam thermal shock on the helium ion irradiation damage behavior of W-TiC-Y2O3 composites
AU - Xu, Meng–Yao Y.
AU - Luo, Lai–Ma M.
AU - Xu, Yue
AU - Zan, Xiang
AU - Xu, Qiu
AU - Tokunaga, Kazutoshi
AU - Zhu, Xiao–Yong Y.
AU - Wu, Yu–Cheng C.
N1 - Funding Information:
This work is supported by National Magnetic Confinement Fusion Program (Grant No. 2014GB121001 ), National Natural Science Foundation of China (Grant No. 51574101 and 51474083 ), The Fundamental Research Funds for the Central Universities ( PA2018GDQT0010 and PA2018GDQT0018 ), and The Foundation of Laboratory of Nonferrous Metal Material and Processing Engineering of Anhui Province ( 15CZS08031 ).
PY - 2018/10
Y1 - 2018/10
N2 - In this work, a W-TiC-Y2O3 composite was successfully prepared using a wet chemical method, and the thermal shock behavior of the composite was studied under a laser beam. The influence of the thermal shock of the laser-beamed W-TiC-Y2O3 composite on the radiation damage behavior of helium ions was also explored. The results show that after laser beam thermal shock, the W-TiC-Y2O3 composite exhibited ablation and remelting in the molten region. Three different morphologies were observed on the material surface after thermal shock: molten zone, heat-affected zone and unaffected zone. Second-phase agglomeration occurred in the heat-affected zone. After helium irradiation, nanotendrils are formed in the unaffected area and the heat-affected area. However, the degree of irradiation damage in the melting zone is much lighter. This is mainly due to the columnar structure in melting zone.
AB - In this work, a W-TiC-Y2O3 composite was successfully prepared using a wet chemical method, and the thermal shock behavior of the composite was studied under a laser beam. The influence of the thermal shock of the laser-beamed W-TiC-Y2O3 composite on the radiation damage behavior of helium ions was also explored. The results show that after laser beam thermal shock, the W-TiC-Y2O3 composite exhibited ablation and remelting in the molten region. Three different morphologies were observed on the material surface after thermal shock: molten zone, heat-affected zone and unaffected zone. Second-phase agglomeration occurred in the heat-affected zone. After helium irradiation, nanotendrils are formed in the unaffected area and the heat-affected area. However, the degree of irradiation damage in the melting zone is much lighter. This is mainly due to the columnar structure in melting zone.
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U2 - 10.1016/j.jnucmat.2018.06.043
DO - 10.1016/j.jnucmat.2018.06.043
M3 - Article
AN - SCOPUS:85049348843
SN - 0022-3115
VL - 509
SP - 198
EP - 203
JO - Journal of Nuclear Materials
JF - Journal of Nuclear Materials
ER -