Doctoral Dissertations

Abstract

"A multiple exposure back reflection diffraction camera was designed to mount on the vacuum jacket of a pressurized helium gas "Cryomite". With this design it is possible to obtain six diffraction exposures on a single film at any temperature in the range of 180 to 25°K. temperatures within this range are reached in short intervals and exposure periods are less than 30 minutes in a 2.875 inch (73.03 mm) diameter camera. Some of the advantages of this design are; direct measurements, multiple exposures on a single film, short exposures, direct compensation of film length changes due to evacuation or processing of the film, and easy determination of transformation changes. Since the camera design did not permit oscillation of the metal powder specimens, a particle size of 20 micron or less was required to produce continuous lines of less than 0.197 inch (0.50 mm) width at theta angles greater than 70 degrees"--Abstract, page ii.

Advisor(s)

Straumanis, Martin E., 1898-1973

Committee Member(s)

Weart, Harry W.
Frad, William A., 1909-1974
Planje, Theodore J., 1919-1980
James, William Joseph

Department(s)

Materials Science and Engineering

Degree Name

Ph. D. in Metallurgical Engineering

Sponsor(s)

National Defense and Education Act Title IV Fellowship

Publisher

University of Missouri--Rolla

Publication Date

1969

Pagination

x, 132 pages

Note about bibliography

Includes bibliographical references (pages 85-89).

Rights

© 1969 Claude L. Woodard, All rights reserved.

Document Type

Dissertation - Open Access

File Type

text

Language

English

Subject Headings

Low temperature researchThermal stresses -- MeasurementLattice pathsX-rays -- Diffraction

Thesis Number

T 2299

Print OCLC #

5155424

Electronic OCLC #

833161235

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Metallurgy Commons

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