Effect of laser beam thermal shock on the helium ion irradiation damage behavior of W-TiC-Y2O3 composites

Meng–Yao Y. Xu, Lai–Ma M. Luo, Yue Xu, Xiang Zan, Qiu Xu, Kazutoshi Tokunaga, Xiao–Yong Y. Zhu, Yu–Cheng C. Wu

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

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.

Original languageEnglish
Pages (from-to)198-203
Number of pages6
JournalJournal of Nuclear Materials
Volume509
DOIs
Publication statusPublished - Oct 1 2018

Fingerprint

Helium
thermal shock
helium ions
Thermal shock
Ion bombardment
ion irradiation
Laser beams
laser beams
damage
Zone melting
zone melting
heat affected zone
composite materials
Composite materials
Heat affected zone
Molten materials
Irradiation
Remelting
irradiation
Radiation damage

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics
  • Nuclear Energy and Engineering
  • Materials Science(all)

Cite this

Effect of laser beam thermal shock on the helium ion irradiation damage behavior of W-TiC-Y2O3 composites. / Xu, Meng–Yao Y.; Luo, Lai–Ma M.; Xu, Yue; Zan, Xiang; Xu, Qiu; Tokunaga, Kazutoshi; Zhu, Xiao–Yong Y.; Wu, Yu–Cheng C.

In: Journal of Nuclear Materials, Vol. 509, 01.10.2018, p. 198-203.

Research output: Contribution to journalArticle

Xu, Meng–Yao Y. ; Luo, Lai–Ma M. ; Xu, Yue ; Zan, Xiang ; Xu, Qiu ; Tokunaga, Kazutoshi ; Zhu, Xiao–Yong Y. ; Wu, Yu–Cheng C. / Effect of laser beam thermal shock on the helium ion irradiation damage behavior of W-TiC-Y2O3 composites. In: Journal of Nuclear Materials. 2018 ; Vol. 509. pp. 198-203.
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AU - Zan, Xiang

AU - Xu, Qiu

AU - Tokunaga, Kazutoshi

AU - Zhu, Xiao–Yong Y.

AU - Wu, Yu–Cheng C.

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