Combined effect of laser thermal shock and helium ion irradiation on W-Y 2 O 3 composites

Yu Xiang Zhang, Xiao Yue Tan, Lai Ma Luo, Yue Xu, Xiang Zan, Qiu Xu, Kazutoshi Tokunaga, Xiao Yong Zhu, Yu Cheng Wu

Research output: Contribution to journalArticle

Abstract

Tungsten can be the preferred plasma-facing material for nuclear fusion reaction. In this work, W-Y 2 O 3 composite powder was successfully fabricated through the wet chemical method, and bulk materials were obtained by rolling and high temperature annealing. W-2 vol% Y 2 O 3 was exposed to 80 eV helium ion irradiation with a flux of 1.5 × 10 22 ions/(m 2 ·s) at 1503–1553 K to assess its thermal shock resistance and helium ion irradiation damage behavior. The thermal shock behaviors of samples were studied under a laser beam. The energy densities of the laser thermal shock were 0.32, 0.48, and 0.64 GW/m 2 . W-Y 2 O 3 was compared with commercial pure tungsten. The hardness of pure tungsten and W-Y 2 O 3 before and after helium irradiation was measured by using a micro-hardness tester. The surface micrograph after helium ion irradiation and thermal shock was observed through scanning electron microscopy. Results show that W-Y 2 O 3 composite materials have better resistance to laser thermal shock than pure tungsten.

Original languageEnglish
Pages (from-to)102-106
Number of pages5
JournalFusion Engineering and Design
Volume140
DOIs
Publication statusPublished - Mar 1 2019

Fingerprint

Helium
Thermal shock
Ion bombardment
Tungsten
Lasers
Composite materials
Facings
Powders
Microhardness
Laser beams
Fusion reactions
Hardness
Irradiation
Annealing
Ions
Fluxes
Plasmas
Scanning electron microscopy
Temperature

All Science Journal Classification (ASJC) codes

  • Civil and Structural Engineering
  • Nuclear Energy and Engineering
  • Materials Science(all)
  • Mechanical Engineering

Cite this

Combined effect of laser thermal shock and helium ion irradiation on W-Y 2 O 3 composites . / Zhang, Yu Xiang; Tan, Xiao Yue; Luo, Lai Ma; Xu, Yue; Zan, Xiang; Xu, Qiu; Tokunaga, Kazutoshi; Zhu, Xiao Yong; Wu, Yu Cheng.

In: Fusion Engineering and Design, Vol. 140, 01.03.2019, p. 102-106.

Research output: Contribution to journalArticle

Zhang, Yu Xiang ; Tan, Xiao Yue ; Luo, Lai Ma ; Xu, Yue ; Zan, Xiang ; Xu, Qiu ; Tokunaga, Kazutoshi ; Zhu, Xiao Yong ; Wu, Yu Cheng. / Combined effect of laser thermal shock and helium ion irradiation on W-Y 2 O 3 composites In: Fusion Engineering and Design. 2019 ; Vol. 140. pp. 102-106.
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AU - Tokunaga, Kazutoshi

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