(International Tables for Crystallography) Thermal expansion

International
Tables for
Crystallography
Volume D
Physical properties of crystals
Edited by A. Authier
eISBN 978-1-4020-5409-9

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International Tables for Crystallography (2006). Vol. D, ch. 1.4, p. 99

Figure 1.4.1.1

H. Küppers^a ^*

^aInstitut für Geowissenshaften, Universität Kiel, Olshausenstrasse 40, D-24098 Kiel, Germany
Correspondence e-mail: kueppers@min.uni-kiel.de

Figure 1.4.1.1

Sections (ac plane) of representation surfaces for a trigonal (or tetragonal or hexagonal) crystal with $[\alpha_{11} = \alpha_{22} = -1]$ and $[\alpha_{33} = +3 \times 10^{-5}\;\hbox{K}^{-1}]$ (similar to calcite). (a) Quadric, (b) strain ellipsoid (greatly exaggerated), (c) polar diagram. The c axis is the axis of revolution. Sectors with negative expansions are dashed.