Masters Theses

Author

R. A. Parr

Abstract

"The purpose of this investigation was to study the effect of instrument parameter changes upon X-ray intensity measurements of the copper-manganese system. The parameters utilized in this study included: (1) polished, contaminated, and 600 grit surfaces ; (2) constant sample current and constant beam current modes; and (3) 15 KV, 20 KV, and 25 KV accelerating potentials. Inspection of the data disclosed three interesting points: (1) copper and manganese X-ray intensity measurements appear to be a linear function of composition in the 15 KV through 25 KV accelerating potential range; (2) electron backscatter measurements consistently show in a limited range coefficients larger than either of the pure elements; (3) X- ray diffraction studies of these alloys indicates that the lattice parameters are increasing; whereas, if manganese were added substitutionally the parameters would change very little. Subsequent analysis of the data produced two empirical methods of utilizing uncorrected data without applying advanced mathematical corrections. The two empirical methods are : (1) a linear adjustment method; and (2) a graphical compensating method"--Abstract, Page ii.

Advisor(s)

Lewis, Gordon

Committee Member(s)

Clark, J. B. (J. Beverley)
Hill, Otto H.

Department(s)

Materials Science and Engineering

Degree Name

M.S. in Metallurgical Engineering

Sponsor(s)

George C. Marshall Space Flight Center

Publisher

University of Missouri--Rolla

Publication Date

1970

Pagination

vi, 88 Pages

Note about bibliography

Includes bibliographical references (pages 74-76).

Rights

© 1970 Richard Arlen Parr, All rights reserved.

Document Type

Thesis - Open Access

File Type

text

Language

English

Library of Congress Subject Headings

Microprobe analysis
Copper-magnesium alloys
X-rays -- Measurement

Thesis Number

T 2342

Print OCLC #

6013626

Electronic OCLC #

844761679

Included in

Metallurgy Commons

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