DOE PAGES title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Property changes of G347A graphite due to neutron irradiation

Abstract

A new, fine-grain nuclear graphite, grade G347A from Tokai Carbon Co., Ltd., has been irradiated in the High Flux Isotope Reactor at Oak Ridge National Laboratory to study the materials property changes that occur when exposed to neutron irradiation at temperatures of interest for Generation-IV nuclear reactor applications. Specimen temperatures ranged from 290°C to 800 °C with a maximum neutron fluence of 40 × 1025 n/m2 [E > 0.1 MeV] (~30dpa). Lastly, observed behaviors include: anisotropic behavior of dimensional change in an isotropic graphite, Young's modulus showing parabolic fluence dependence, electrical resistivity increasing at low fluence and additional increase at high fluence, thermal conductivity rapidly decreasing at low fluence followed by continued degradation, and a similar plateau value of the mean coefficient of thermal expansion for all irradiation temperatures.

Authors:
 [1];  [1];  [1];  [2]
  1. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  2. Tokai Carbon Co. Ltd. (Japan)
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). High Flux Isotope Reactor (HFIR)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES); Work for Others (WFO)
OSTI Identifier:
1334427
Alternate Identifier(s):
OSTI ID: 1396832
Grant/Contract Number:  
AC05-00OR22725; NFE-09-02345
Resource Type:
Accepted Manuscript
Journal Name:
Carbon
Additional Journal Information:
Journal Volume: 109; Journal Issue: C; Journal ID: ISSN 0008-6223
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE

Citation Formats

Campbell, Anne A., Katoh, Yutai, Snead, Mary A., and Takizawa, Kentaro. Property changes of G347A graphite due to neutron irradiation. United States: N. p., 2016. Web. doi:10.1016/j.carbon.2016.08.042.
Campbell, Anne A., Katoh, Yutai, Snead, Mary A., & Takizawa, Kentaro. Property changes of G347A graphite due to neutron irradiation. United States. https://doi.org/10.1016/j.carbon.2016.08.042
Campbell, Anne A., Katoh, Yutai, Snead, Mary A., and Takizawa, Kentaro. Thu . "Property changes of G347A graphite due to neutron irradiation". United States. https://doi.org/10.1016/j.carbon.2016.08.042. https://www.osti.gov/servlets/purl/1334427.
@article{osti_1334427,
title = {Property changes of G347A graphite due to neutron irradiation},
author = {Campbell, Anne A. and Katoh, Yutai and Snead, Mary A. and Takizawa, Kentaro},
abstractNote = {A new, fine-grain nuclear graphite, grade G347A from Tokai Carbon Co., Ltd., has been irradiated in the High Flux Isotope Reactor at Oak Ridge National Laboratory to study the materials property changes that occur when exposed to neutron irradiation at temperatures of interest for Generation-IV nuclear reactor applications. Specimen temperatures ranged from 290°C to 800 °C with a maximum neutron fluence of 40 × 1025 n/m2 [E > 0.1 MeV] (~30dpa). Lastly, observed behaviors include: anisotropic behavior of dimensional change in an isotropic graphite, Young's modulus showing parabolic fluence dependence, electrical resistivity increasing at low fluence and additional increase at high fluence, thermal conductivity rapidly decreasing at low fluence followed by continued degradation, and a similar plateau value of the mean coefficient of thermal expansion for all irradiation temperatures.},
doi = {10.1016/j.carbon.2016.08.042},
journal = {Carbon},
number = C,
volume = 109,
place = {United States},
year = {Thu Aug 18 00:00:00 EDT 2016},
month = {Thu Aug 18 00:00:00 EDT 2016}
}

Journal Article:

Citation Metrics:
Cited by: 26 works
Citation information provided by
Web of Science

Save / Share:

Works referenced in this record:

Irradiation damage to pile grade graphite at 450° C
journal, December 1962


Effect of high-flux fast-neutron irradiation on the physical properties of graphite
journal, August 1964


The effects of radiation damage on the properties of GraphNOL N3M
journal, March 1991


The effect of neutron irradiation damage on the properties of grade NBG-10 graphite
journal, September 2007


The effect of high fluence neutron irradiation on the properties of a fine-grained isotropic nuclear graphite
journal, May 1996


Structure-related property changes in polycrystalline graphite under neutron irradiation
journal, January 1994


Method for analyzing passive silicon carbide thermometry with a continuous dilatometer to determine irradiation temperature
journal, March 2016

  • Campbell, Anne A.; Porter, Wallace D.; Katoh, Yutai
  • Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, Vol. 370
  • DOI: 10.1016/j.nimb.2016.01.005

Effects of oxidation on compressive deformation behavior of nuclear-grade isotropic graphite
journal, January 1985


Thermal conductivity degradation of ceramic materials due to low temperature, low dose neutron irradiation
journal, April 2005


Works referencing / citing this record:

Super-resolution energy spectra from neutron direct-geometry spectrometers
journal, October 2019

  • Islam, Fahima; Lin, Jiao Y. Y.; Archibald, Richard
  • Review of Scientific Instruments, Vol. 90, Issue 10
  • DOI: 10.1063/1.5116147

A Review of Finite Element Method Models for Nuclear Graphite Applications
journal, December 2018

  • Arregui-Mena, José David; Worth, Robert N.; Hall, Graham
  • Archives of Computational Methods in Engineering, Vol. 27, Issue 1
  • DOI: 10.1007/s11831-018-09310-y