Table of Contents
Textures and Microstructures
Volume 26–27

Neutron Texture Investigations on Natural Mt. Isa Chalcopyrite Ore–Part I: Preferred Orientation of one and the Same Chalcopyrite Sample Before and After Experimental Deformation

1lnstitut für Mineralogie und Lagerstättenlehre, RWTH Aachen, Wüllnerstr. 2, Aachen D-52056, Germany
2Institut für Metallkunde und Metallphysik, TU Clausthal, Auβenstelle GKSS Forschungszentrum, Postfach 1160, Geesthacht D-21494, Germany

Received 10 September 1995

Copyright © 1996 Hindawi Publishing Corporation. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Natural chalcopyrite samples from Mt. Isa, Australia were axially shortened with a constant strain rate of 3105sec1, at a constant confining pressure of 300 (400) MPa and at different temperatures. Neutron diffraction texture analyses were carried out before and after experimental deformation on one and the same sample. The preferred orientation of the experimentally undeformed samples consists of three main orientation components, which become weaker with deformation at temperatures up to 200℃. One or two new components develop with the c-axes perpendicular to the principal strain direction. At a deformation temperature of 300℃ two very different new components develop, the original components are completely dissolved.