Temperature-Dependent Multi-Scale Pore Evolution and Nitrogen Diffusion in Nuclear Graphite

Zhu, Longkui; Tu, Menghe; Li, Zhengcao; Li, Mingyang; Wang, Miao; Li, Hong; Volinsky, Alex A.

doi:10.1007/s11661-017-4076-z

Cited by 3 publications

(1 citation statement)

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“…A nuclear graphite has excellent irradiation performance and adequate mechanical properties at high temperatures therefore it has been used extensively for moderators, reflectors, and structural materials for hightemperature gas-cooled reactors (HTGRs) (Zhu et al, 2017). Even graphite itself is non-flammable due to the lack of volatile species, when it is exposed to an oxygenated environment at high temperatures (>450 o C) thermal oxidation will occur (Katie dkk, 2018).…”

Section: Introductionmentioning

confidence: 99%

Oxidation Behavior and Micro Structure Analysis of Nuclear Graphite Ig-110 at 520℃ Under Air Environment

Herlina

Wicaksono

Rivai

2021

Materials Research Communications

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Graphite IG-110 is a nuclear graphite structural and moderator material that has been used for high temperature gas cooled reactors (HTGR). Under normal operating conditions or accidental entry of air or water (air ingress or water ingress), a nuclear graphite. Therefore, the aim of this study is to investigate the oxidation resistant and microstructure change behavior of graphite IG-110 at high temperature under air environment. The sample of IG-110 was tested using Magnetic Suspension Balance (MSB) to analyze the weight change by in-situ for 420 minutes at a temperature of 520 o C. Morphological and microstructure analysis was carried out by optical microscope, SEM-EDS (Scanning Electron Microscope -Energy Dispersive X-ray Sprectroscope) and XRD (X-Ray Diffractometer). The results showed that Graphite IG-110 has a change in surface structure caused by the reaction of the material with oxygen in air at high temperatures. Furthermore, the crystal size of the material structure was slightly change. However, in general, the corrosion rate of graphite IG-110 at a temperature of 520℃ under the air environment is relatively low. So that if graphite IG-110 is exposed to air at a temperature of 520℃ for several hundred minutes in a nuclear reactor estimated does not suffer serious damage.

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Section: Introductionmentioning

confidence: 99%

Oxidation Behavior and Micro Structure Analysis of Nuclear Graphite Ig-110 at 520℃ Under Air Environment

Herlina

Wicaksono

Rivai

2021

Materials Research Communications

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Neutron Depth Profiling Study on ⁶Lithium and ¹⁰Boron Contents of Nuclear Graphite

Gao

Liu

et al. 2021

Journal of Nuclear Science and Technology

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Estimation of the Irradiated Graphite Surface Nanolayer Thickness Enriched by ¹⁴С Isotope

Petrovskaya

Цыганов

Surov

et al. 2019

2019 IEEE International Conference on Electrical Engineering and Photonics (EExPolytech)

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Temperature-Dependent Multi-Scale Pore Evolution and Nitrogen Diffusion in Nuclear Graphite

Cited by 3 publications

References 38 publications

Oxidation Behavior and Micro Structure Analysis of Nuclear Graphite Ig-110 at 520℃ Under Air Environment

Oxidation Behavior and Micro Structure Analysis of Nuclear Graphite Ig-110 at 520℃ Under Air Environment

Neutron Depth Profiling Study on ⁶Lithium and ¹⁰Boron Contents of Nuclear Graphite

Estimation of the Irradiated Graphite Surface Nanolayer Thickness Enriched by ¹⁴С Isotope

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Temperature-Dependent Multi-Scale Pore Evolution and Nitrogen Diffusion in Nuclear Graphite

Cited by 3 publications

References 38 publications

Oxidation Behavior and Micro Structure Analysis of Nuclear Graphite Ig-110 at 520℃ Under Air Environment

Oxidation Behavior and Micro Structure Analysis of Nuclear Graphite Ig-110 at 520℃ Under Air Environment

Neutron Depth Profiling Study on 6Lithium and 10Boron Contents of Nuclear Graphite

Estimation of the Irradiated Graphite Surface Nanolayer Thickness Enriched by 14С Isotope

Contact Info

Product

Resources

About

Neutron Depth Profiling Study on ⁶Lithium and ¹⁰Boron Contents of Nuclear Graphite

Estimation of the Irradiated Graphite Surface Nanolayer Thickness Enriched by ¹⁴С Isotope