Table of Contents
Textures and Microstructures
Volume 24, Issue 1-3, Pages 23-29
http://dx.doi.org/10.1155/TSM.24.23

Texture Development in Gypsum During Crystallisation

1lnstitut für Mineralogie und Mineralische Rohstoffe, Technische Universität, Clausthal-Zellerfeld, Germany
2lnstitut für Metallkunde und Metallphysik, Technische Universität, Clausthal-Zellerfeld, Germany

Received 12 July 1994

Copyright © 1995 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.

Abstract

Gypsum was set on polyethylene foil of different origin and on cellophane foil. Experiments were also carried out in an electric field (5-25 kV direct-current). In all cases (especially in the electric field) (010) textures developed on the contact surfaces and were overlapped by a (121) texture. Brinell hardness tests show a greater hardness of the contact areas than those of the upper sides of the samples. Those samples set in an electric field yielded, partly, greater differences. The values, however, diverge greatly.