Texture Determination of Thin Cu-Wires by Synchrotron Radiation

Abstract

A new method to investigate thin wires has been tested, which is based on a special sample holder and on a high energy X-rays. Due to the high penetration power of high energy Xrays quantitative texture data will be obtained without any additional corrections such as constant volume correction and absorption correction. The measurements have been carried out at the high energy beam line BW5 at HASYLAB – DESY (Hamburg). In order to overcome grain statistics problems on the investigated Cu-wire of 122µm thickness a special scanning routine together with the sample preparation allows to average over a wire length between 1mm and up to 240 mm.

Global crystallographic textures obtained by neutron and synchrotron radiation

“…A set of 10 parallel Cu wires with 122 mm thickness each were fixed in a special sample holder to avoid curling, so that an average texture over a total length of 40 mm was obtained. The result was a /1 1 2S fiber texture as shown in the inverse pole figure after ODF calculation using the iterative series expansion method [10]. …”

Texture Transition in Steel ST37K, in situ Measurement at High Temperatures Using High-Energy X-rays

“…Secondly, the excellent brilliance combined with the high photon flux allows local measurements in the µm-scale [8]. Thirdly, the high penetration power on one hand and the high photon flux on the other hand made it possible to measure rather small samples such as wires or foils [9] but also relatively large samples of some cm in diameter such as a steel shaft. In Fig.…”