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Document Type

Research

Abstract

If the elastic constants of a homogeneous, anisotropic material are known, it is possible to calculate the theoretical frequencies of the different modes of vibration between the faces of an infinite plate of the material. Conversely, knowing the frequencies of sufficient modes of vibration, it is possible to calculate the elastic constants. The frequencies of vibration of higher harmonics of finite plates, divided by the order of the harmonic, should approach very close to the frequency of the theoretical infinite plate. Plates of quartz were accurately oriented and cut from well-developed, flaw-free quartz crystals and the frequencies of higher harmonic piezo-electric vibrations were accurately determined. With this information, the six adiabatic elastic constants of quartz were evaluated.

Publication Date

1939

Journal Title

Proceedings of the Iowa Academy of Science

Volume

46

Issue

1

First Page

271

Last Page

272

Copyright

© Copyright 1939 by the Iowa Academy of Science, Inc.

Language

EN

File Format

application/pdf

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