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Quantifying Heterogeneity with Microbeam Analysis

Published online by Cambridge University Press:  14 March 2018

Michael Shaffer
Michael Shaffer*
Affiliation:
University of Oregon

Extract

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Electron probe microanalysis (EPMA) is not only an excellent technique for measuring the chemical composition of a wide variety of materials, but also provides an effective means to quantitatively evaluate the chemical homogeneity of the material, In this contribution I present an easy approach for determining the chemical homogeneity of specimens in a statistically meaningful way.

The decree of chemical heterogeneity may be determined by a variety of methods varying both in ease snd rigor. One might apply a simple test for the sake of classifying the material as homogeneous or heterogeneous.

Type
Research Article
Information
Microscopy Today , Volume 6 , Issue 10 , December 1998 , pp. 14 - 17
Copyright
Copyright © Microscopy Society of America 1998

References

1. Rice, J., Shaffer, M., Wall, D., 1998 Course Notes for Etectron Beam Analysis in Mineralogy and Petrology, Department of Geological Sciences. University of Oregon.Google Scholar
2. Goldstein, J., Newbury, D., Echlin, P., Joy, D., Flori, G. Lifshin, E., 1984 Scanning Electron Microscopy and X-ray Microanalysis., Plenum Press, (p. 432)Google Scholar
3. See also Bevington, P.R., 1969. Data Reduction and Error Analysis for the Physical Sciences, McGraw-Hill Google Scholar