Characterisation of displacement cascade damage in Cu/sub by C A English Affiliation: UKAEA Atomic Energy Research

By C A English Affiliation: UKAEA Atomic Energy Research Establishment, Harwell. Metallurgy Div.; M L Jenkins; M A Kirk Affiliation: Oxford Univ. (UK). Dept. of Metallurgy and Science of Materials

Show description

Read or Download Characterisation of displacement cascade damage in Cu/sub 3/Au produced by fusion-neutron irradiation PDF

Best nonfiction_7 books

Consumers and nanotechnology : deliberative processes and methodologies

Content material: Pt. 1. technological know-how and democracy -- pt. 2. Citizen-oriented deliberative tactics -- pt. three. Stakeholder-oriented deliberative tactics -- pt. four. a facet of a extra democratic technological know-how : the way forward for deliberative strategies on nanotechnology and different rising applied sciences

Agile Service Development: Combining Adaptive Methods and Flexible Solutions

Economies all over the world have advanced into being mostly service-oriented economies. shoppers now not simply need a printer or a vehicle, they fairly ask for a printing provider or a mobility carrier. moreover, service-oriented corporations more and more make the most new units, applied sciences and infrastructures.

Hearing – From Sensory Processing to Perception

Listening to – From Sensory Processing to conception offers the papers of the most recent “International Symposium on Hearing”, a gathering held each 3 years concentrating on psychoacoustics and the learn of the physiological mechanisms underlying auditory belief. The complaints offer an updated record at the prestige of the sector of analysis into listening to and auditory services.

Extra resources for Characterisation of displacement cascade damage in Cu/sub 3/Au produced by fusion-neutron irradiation

Sample text

9. Amorphous zones in Si imaged in structure-factor contrast. These were produced by a process of direct-impact amorphization in an irradiation with 60 keV Bi2 ions. The image was obtained in a dark field under dynamical two-beam conditions, using ¯ The contrast of the amorphous zones arises from an effective local change in g = 022. foil thickness—see text for details. Note that in the transition region at the centre of the thickness fringe, some zones image as dark dots with a white centre. Figure taken from work by Howe et al (1980).

In niobium the black–white vector l lies midway between g and b . From Ohr (1979). this direction is elastically hard, and thus the black–white vector is rotated further ¯ Burgers vector than for an elastically isotropic material. 4). Holmes et al (1979) have made simulations of non-edge loops in molybdenum. 12. Dark-field simulated images of a loop with b = 12 [11 sg = 0. Here the loop normals n are designated n 3 if the loop is of edge type, or n 1 if the loop habit-plane is the original nucleation plane.

Simulations were made ¯ imaged of the images of edge loops with Burgers vector bb parallel to [1 11] in a diffraction vector gg = 002 with foil normal n = [110]. For a Frank loop in a hypothetical isotropic material, the computed image showed a black– white contrast with l rotated about 15 ◦ away from b in a direction towards g . Calculations for Frank loops in copper and nickel were made under identical diffraction conditions using the displacement fields of anisotropic elasticity. In both cases the effect of anisotropy was to ‘stretch’ the black–white contrast parallel to the Burgers vector b .

Download PDF sample

Rated 4.74 of 5 – based on 11 votes