TY - JOUR
T1 - Influence of neutron irradiation on the microstructure of nuclear graphite
T2 - An X-ray diffraction study
AU - Zhou, Zhou
AU - Bouwman, W. G.
AU - Schut, H.
AU - van Staveren, T. O.
AU - Heijna, M. C R
AU - Pappas, C.
PY - 2017/4/15
Y1 - 2017/4/15
N2 - Neutron irradiation effects on the microstructure of nuclear graphite have been investigated by X-ray diffraction on virgin and low doses (∼1.3 and ∼2.2 dpa), high temperature (750° C) irradiated samples. The diffraction patterns were interpreted using a model, which takes into account the turbostratic disorder. Besides the lattice constants, the model introduces two distinct coherent lengths in the c-axis and the basal plane, that characterise the volumes from which X-rays are scattered coherently. The methodology used in this work allows to quantify the effect of irradiation damage on the microstructure of nuclear graphite seen by X-ray diffraction. The results show that the changes of the deduced structural parameters are in agreement with previous observations from electron microscopy, but not directly related to macroscopic changes.
AB - Neutron irradiation effects on the microstructure of nuclear graphite have been investigated by X-ray diffraction on virgin and low doses (∼1.3 and ∼2.2 dpa), high temperature (750° C) irradiated samples. The diffraction patterns were interpreted using a model, which takes into account the turbostratic disorder. Besides the lattice constants, the model introduces two distinct coherent lengths in the c-axis and the basal plane, that characterise the volumes from which X-rays are scattered coherently. The methodology used in this work allows to quantify the effect of irradiation damage on the microstructure of nuclear graphite seen by X-ray diffraction. The results show that the changes of the deduced structural parameters are in agreement with previous observations from electron microscopy, but not directly related to macroscopic changes.
UR - http://www.scopus.com/inward/record.url?scp=85014002772&partnerID=8YFLogxK
U2 - 10.1016/j.jnucmat.2017.02.004
DO - 10.1016/j.jnucmat.2017.02.004
M3 - Article
AN - SCOPUS:85014002772
VL - 487
SP - 323
EP - 330
JO - Journal of Nuclear Materials
JF - Journal of Nuclear Materials
SN - 0022-3115
ER -