The effect of elastic anisotropy on contrast in the scanning acoustic microscope

Michael Geoffrey Somekh; G. A.D. Briggss; C. Ilett

doi:10.1080/01418618408234922

The effect of elastic anisotropy on contrast in the scanning acoustic microscope

Michael Geoffrey Somekh, G. A.D. Briggss, C. Ilett

Research output: Journal article publication › Journal article › Academic research › peer-review

46 Citations (Scopus)

Abstract

The contrast obtained with polycrystalline specimens in the scanning acoustic microscope is computed by taking account of the anisotropic stiffness tensor. The resulting variation of signal with defocus is fundamentally different from that which could be obtained with an isotropic material regardless of the values of the elastic properties. In many cases this results largely from the excitation of pseudo-surface waves which effect the response of the microscope in a similar manner to ‘leaky’ Rayleigh waves. The reasons why some materials fail to give good acoustic images of grain structure are discussed.

Original language	English
Pages (from-to)	179-204
Number of pages	26
Journal	Philosophical Magazine A: Physics of Condensed Matter, Structure, Defects and Mechanical Properties
Volume	49
Issue number	2
DOIs	https://doi.org/10.1080/01418618408234922
Publication status	Published - 1 Jan 1984
Externally published	Yes

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
General Materials Science
Condensed Matter Physics
Physics and Astronomy (miscellaneous)
Metals and Alloys

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10.1080/01418618408234922

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The effect of elastic anisotropy on contrast in the scanning acoustic microscope. / Somekh, Michael Geoffrey; Briggss, G. A.D.; Ilett, C.
In: Philosophical Magazine A: Physics of Condensed Matter, Structure, Defects and Mechanical Properties, Vol. 49, No. 2, 01.01.1984, p. 179-204.

Research output: Journal article publication › Journal article › Academic research › peer-review

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The effect of elastic anisotropy on contrast in the scanning acoustic microscope

Abstract

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