Doctoral Dissertations

Abstract

"A calorimetric study of the effects of the interphase surface free energy has been conducted on ellipsoidal samples of first and second kind superconductors. The measurements were performed using a specially designed magnetization calorimeter by two different techniques. The measurements were made on lead, tin, lead-4at%thallium, and tin-6at% indium. The results confirm the existence and experted sign of the surface energy in a well annealed lead-4at%thallium sample, and indicate that the interphase surface energy in lead and tin is too small to be directly detected by this method. The measured latent heats of transition of lead and tin agree well with the latent heats deduced from the critical field curves. The tin-6at%indium sample was too hysteretic to yield meaningful data. The results of measurements performed on lead-4at%thallium were compared to predictions based on laminar and vortex models of the mixed state"--Abstract, page i.

Advisor(s)

Hopkins, Don Carlos

Committee Member(s)

Brown, Harry A., 1925-1995
Antle, Charles E.
McFarland, Charles E.
Illegible signature

Department(s)

Physics

Degree Name

Ph. D. in Physics

Sponsor(s)

United States. Army Research Office

Publisher

University of Missouri at Rolla

Publication Date

1967

Pagination

vii, 118 pages

Note about bibliography

Includes bibliographical references (pages 112-115).

Rights

© 1967 Robert Rex Rice, All rights reserved.

Document Type

Dissertation - Open Access

File Type

text

Language

English

Subject Headings

CalorimetryHigh temperature superconductivityHigh temperature superconductorsSuperconductors, Type IISuperconductors

Thesis Number

T 2037

Print OCLC #

9524921

Electronic OCLC #

780604097

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