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Blackman Diagrams and Elastic-Constant Systematics

Published

Author(s)

H M. Ledbetter

Abstract

We consider Blackman diagrams for various cubic materials. These diagrams, plots of reduced elastic-stiffness coefficients C12/C11 versus C44/C11, show that materials with similar chemical bonding tend to fall in the same region of the diagrams. Such diagrams provide many uses. One important use is to enable determination of the complete cubic-symmetry Cij-Cd11^, C12, C44-from the quasiisotropic (polycrystal) elastic constants. The diagram gives information about elastic anisotropy, departures from central interatomic forces, and lattice instabilities, Examples considered include b.c.c. metals, f.c.c. metals, diamond-cubic elements, alkali halides, oxides, 8-N compounds, carbides, semiconductors, and Fe-Cr-Ni alloys (austenitic stainless steels).
Citation
Blackman Diagrams and Elastic-Constant Systematics
Volume
II
Publisher Info
Handbook of Elastic Properties of Solids, Fluids, and Gases ,

Keywords

80N compounds, alloys, blackman diagrams, carbides, elastic constants, elements, Fe-cr-n, halides, oxides

Citation

Ledbetter, H. (2001), Blackman Diagrams and Elastic-Constant Systematics, Handbook of Elastic Properties of Solids, Fluids, and Gases , , [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=851169 (Accessed July 19, 2024)

Issues

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Created January 5, 2001, Updated February 19, 2017