Surface analysis after working with rare earth tungsten electrode for high-power pulsed Xenon lamp

Gao Zhikun; Yang Jiancan; Hao Wanli; Fu Baogang

doi:10.11884/HPLPB201931.180261

Volume 31 Issue 1

Jan. 2019

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Gao Zhikun, Yang Jiancan, Hao Wanli, et al. Surface analysis after working with rare earth tungsten electrode for high-power pulsed Xenon lamp[J]. High Power Laser and Particle Beams, 2019, 31: 012001. doi: 10.11884/HPLPB201931.180261

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Gao Zhikun, Yang Jiancan, Hao Wanli, et al. Surface analysis after working with rare earth tungsten electrode for high-power pulsed Xenon lamp[J]. High Power Laser and Particle Beams, 2019, 31: 012001. doi: 10.11884/HPLPB201931.180261

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Surface analysis after working with rare earth tungsten electrode for high-power pulsed Xenon lamp

doi: 10.11884/HPLPB201931.180261

1.
Materials Science and Engineering, Beijing University of Technology, Beijing 100022, China
2.
Institute of Nuclear Physics and Chemistry, CAEP, Mianyang 621900, China

Received Date: 2018-10-08
Rev Recd Date: 2018-12-04
Publish Date: 2019-01-15

Abstract

Abstract

The material selected for the experiment is the high power pulsed Xenon lamp rare earth tungsten electrode after operation. Analysis of appearance, element distribution and elemental valence of rare earth tungsten electrode surface and etched at different depths. Experimental results show that: After the work, there were many cracks on the surface of the electrode and ablation pits. The elements on the surface were evenly distributed and consisted of three elements: W, La, and O.The electrode surface La exists in the form of La³⁺, W has two valence states W⁰ and W⁶⁺, where W⁶⁺ accounts for the majority; After the ion etching, the valencestate of La is still La³⁺, W still has two types of W⁰ and W⁶⁺, but W⁰ accounts for the most; After the etching depth increases, the valence state of tungsten becomes W⁰.
- rare earth tungsten electrode,
- surface appearance,
- element distribution,
- valence state

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References(20)

References

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