Study on the Determination Method of the Residual Fluorine Content on the Inner Surface of the Fuel Rod Cladding Tube

An Shenping; Li Shuliang; Liao Zhihai; Huang Xinshu; Ning Wei; Ren Liping

doi:10.13832/j.jnpe.2022.01.0116

Volume 43 Issue 1

Feb. 2022

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An Shenping, Li Shuliang, Liao Zhihai, Huang Xinshu, Ning Wei, Ren Liping. Study on the Determination Method of the Residual Fluorine Content on the Inner Surface of the Fuel Rod Cladding Tube[J]. Nuclear Power Engineering, 2022, 43(1): 116-121. doi: 10.13832/j.jnpe.2022.01.0116

Citation:

An Shenping, Li Shuliang, Liao Zhihai, Huang Xinshu, Ning Wei, Ren Liping. Study on the Determination Method of the Residual Fluorine Content on the Inner Surface of the Fuel Rod Cladding Tube[J]. Nuclear Power Engineering, 2022, 43(1): 116-121. doi: 10.13832/j.jnpe.2022.01.0116

Citation:

An Shenping, Li Shuliang, Liao Zhihai, Huang Xinshu, Ning Wei, Ren Liping. Study on the Determination Method of the Residual Fluorine Content on the Inner Surface of the Fuel Rod Cladding Tube[J]. Nuclear Power Engineering, 2022, 43(1): 116-121. doi: 10.13832/j.jnpe.2022.01.0116

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Study on the Determination Method of the Residual Fluorine Content on the Inner Surface of the Fuel Rod Cladding Tube

doi: 10.13832/j.jnpe.2022.01.0116

Science and Technology on Reactor Fuel and Materials Laboratory, Nuclear Power Institute of China, Chengdu, 610213, China

Received Date: 2021-04-15
Accepted Date: 2021-11-18
Rev Recd Date: 2021-05-10
Publish Date: 2022-02-01

Abstract

Abstract

The residual fluorine on the inner surface of the zirconium alloy pipe might accelerate the stress corrosion of the microcracks on the surface of the zirconium alloy. In order to accurately determine the residual fluorine content in the zirconium alloy pipe, this paper developed a special internal surface residual fluorine extraction device through experimental research, and high-temperature hydrolysis conditions were studied; Ion chromatography was used to determine the extracted fluoride ions. The established analysis method could achieve rapid and continuous determination, and the analysis range was 0.05~1.0 μg/mL; finally, this method was used for zirconium alloy pipes. The residual fluorine content on the inner surface was measured. The results should that the extraction efficiency of the developed device for the residual fluorine on the inner surface could reach 101%; the recovery rate of the method was 98%~104%, the maximum relative standard deviation was 3.9%; with high precision and accuracy, the measurement results met the production needs.
- Fuel rod cladding tube,
- Residual fluorine on the inner surface,
- High-temperature hydrolysis,
- Ion chromatography

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References(10)

References

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