Masters Theses

Abstract

"The lattice constants of α. - Zr with 122 ppm H are a25 = 3.23622 ± o. 00005 Å and c25 = 5 .1526 ± 0. 0003 Å. The thermal expansion coefficients of α - Zr are found to be αa =4.6 x 10-6(0C-1) and αC =11,0 x 10-6(0C-1) in the range between 15 and 55°c.

The solid solubility limit in the Zr - H system at room temperature and independent of the H pressure was determined by the parametric x-ray method to be .310 ppm H. The a constant of Zr containing 0 to ,310 ppm H increased from 3.2360 Å (extrapolated) to 3,2378 Å and became constant (3.2364 Å) above .310 ppm H. The c constant of Zr increased within the range of 0 to .310 ppm H from 5,1508 Å (extrapolated) to 5,1572 Å and became constant (5.1572 Å) beyond .310 ppm H.

The yield and tensile strength of Zr wire increased slightly in the solid solution range and strongly in the two-phase region with increasing H content, while the elongation decreased uniformly with increasing H content.

The density of pure Zr was determined to be 6.484 g/cm3 at 25°c. With increasing H content in the solid solution region, the density of Zr HX decreased.

The perfection of the crystal structure was found to decrease with increasing H content of Zr H in the solid X solution region"-- Abstract, p. ii

Advisor(s)

Straumanis, Martin E., 1898-1973

Committee Member(s)

James, William Joseph
Frad, William A., 1909-1974
Lorey, G. Edwin

Department(s)

Materials Science and Engineering

Degree Name

M.S. in Metallurgical Engineering

Publisher

University of Missouri at Rolla

Publication Date

1964

Pagination

vii, 65 pages

Note about bibliography

Includes bibliographical references (pages 62-64)

Rights

© 1964 Dirk Heinrich Wiebe, All rights reserved.

Document Type

Thesis - Open Access

File Type

text

Language

English

Thesis Number

T 1638

Print OCLC #

5959680

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