Irradiation-induced changes

Fig. 11. Neutron irradiation-induced changes in the coefficient of thermal expansion of GraphNOL N3M at irradiation temperatures of 600 and 875 C [61].

Figure 18. Decrease of irradiation-induced change in optical density at 430 nm vs. temperature. Ultraviolet irradiation at 80 K. (Wiegand, unpublished data and [7,8,104]).

In understanding the irradiation-induced changes in thermal properties, it was necessary to... 

Irradiation-induced changes in grain boundary composition ... 

CX-270G)[21,22,42,83]. Dimensional changes were lower than those of 3D C/C from US, but higher than those of isotropic graphite IG-110 (Table 13.6). It seemed that another material, with pitch fibers ( PCC-2S ), tested for fusion, put aside since it had lower mechanical properties [9], presented about half the irradiation-induced changes (tested under equivalent conditions) (Fig. 13.4), but there exists only one publication on this subject [46]. 

I.G. Lebedev, Neutron irradiation induced changes in the strucmre and properties of glassy carbon, At. Energy 92 (5) (2002). 

The main mechanism which drives the irradiation-induced changes in nuclear graphite is the displacemoit of atoms within the crystal stracture. Using the latest nuclear data and... 

The effects of fast-neutron irradiation on some bulk properties of A15 superconductors are fairly well-established, but the basic mechanism responsible for these irradiation-induced changes (e.g. critical current density are not well-understood (Weber, 1986). Experiments by Brown and Blewitt (1979) and Guinan et al. (1984) suggest that defects produced by collision cascades in A15 compounds are capable of pinning magnetic flux lines and thus initially increasing the... 

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