X-Ray Mass Absorption Coefficients and Quantitative Microanalysis of Metallurgical Systems, Including Refractory Metal-Interstitial Compounds. Page: 4 of 231
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X-RAY MASS ABSORPTION COEFFICIENTS AND
QUANTITATIVE MICROANALYSIS OF METALLURGICAL SYSTEMS,
INCLUDING REFRACTORY METAL-INTERSTITIAL COMPOUNDS
Lawrence John Gray, Ph. D.
Department of Mining, Metallurgy and Petroleum Engineering
University of Illinois, -1969
A method, based on consideration of atomic potentials,
for the estimation of mass absorption coefficients is de-
scribed. Mass absorption coefficients for wavelengths up
0
to 80 A can be estimated. Numerical values are given for
several elements, including the refractory metals, for the
characteristic emission lines of carbon, nitrogen, and
oxygen. The method of calculation permits the estimation,
to better than 5% in most cases, of mass absorption co-
efficients.
A correction procedure for the conversion of micro-
probe x-ray intensity data to composition is presented.
The method, implemented by a described computer program,
was tested in the analysis of eight metallurgical systems
containing elements from carbon to gold in various combine
tions. The data reduction computation has been shown to
be generally applicable to this variety of elements. The
greatest difficulties were encountered in the analysis of
carbon containing samples. Consideration of the principles
on which the correction relations rest leads to the defini-
tion of a set of analytical conditions which minimize the
theoretical errors.
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Gray, L. J. X-Ray Mass Absorption Coefficients and Quantitative Microanalysis of Metallurgical Systems, Including Refractory Metal-Interstitial Compounds., thesis or dissertation, January 1, 1969; Urbana, Illinois. (https://digital.library.unt.edu/ark:/67531/metadc1058720/m1/4/: accessed May 26, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.