Reproducible Textures

Author:

Bunge H. J.1,Esling C.2

Affiliation:

1. Institut für Metallkunde und Metallphysik, Technische Universität, Clausthal-Zellerfeld, Germany

2. Laboratoire de Métallurgie Structurale, Université de Metz, Ile du Saulcy, Metz Cedex 57045, France

Abstract

The orientation distribution function of a textured polycrystalline material may be split into an even and odd part; the latter is not reproducible from pole figure measurements as has been recently shown. The class of textures containing only a reproducible part is considered. In the case of axially symmetric textures (fibre textures), these take on a very simple form. They are, however, not the only type of reproducible textures as has been assumed. A sample having a reproducible texture is centrosymmetric, even in the most general case of non-centrosymmetric, enantiomorphic crystals of one crystal form only. Symmetry elements of this kind have been called non-conventional ones. They may be described by black-and-white or Shubnikov groups. Reproducible textures correspond to a non-conventional centre of inversion as an element of sample symmetry and vice versa.

Publisher

Hindawi Limited

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