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Radiation-Induced Change in the Properties of Isotropic Structural Graphite

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Abstract

Three types of samples of isotropic graphite with different grain density and size were irradiated in a BOR-60 reactor up to neutron fluence (1.7–2.8)·1026 m–2 (E > 0.18 MeV) at 360–400°C. After irradiation, the change in the dimensions, resistivity, linear thermal expansion coefficient and dynamic elastic modulus were investigated. It was determined that the density in the range 1.67–1.76 g/cm3 results in an increase of the maximum weight and depth of volume shrinkage of isotropic fine-grain graphite. An equation was proposed for fitting the temperature dependence of the critical neutron fluence in the range 380–780°C for the experimental graphite samples.

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Authors and Affiliations

  1. State Science Center of the Russian Federation, Scientific-Research Institute of Nuclear Reactors, Russia

    I. G. Lebedev & O. G. Kochkarev

  2. Scientific-Research Institute for Graphite, Russia

    Yu. S. Virgil'ev

Authors
  1. I. G. Lebedev
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  2. O. G. Kochkarev
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  3. Yu. S. Virgil'ev
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Lebedev, I.G., Kochkarev, O.G. & Virgil'ev, Y.S. Radiation-Induced Change in the Properties of Isotropic Structural Graphite. Atomic Energy 93, 589–594 (2002). https://doi.org/10.1023/A:1020892700457

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  • DOI: https://doi.org/10.1023/A:1020892700457

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