A thermodynamic study of the molybdenum-sulfur system at 1100⁰C

Author

Seth C. Schaefer

Abstract

"A static method was used to determine equilibrium sulfur pressure for molybdenum-sulfur mixtures at 1100°C.

The results obtained were:
(1) The molybdenum disulfide phase was stable in a sulfur pressure range of 1.023 x 10^-5 to 6.026 x 10^-1 atmospheres. A range of non-stoichiometry from MoS_2.00 to MoS_2.22 was determined under these conditions.
(2) The upper limit of sulfur content of molybdenum sesquisulfide (Mo₂S₃) is nearly stoichiometric.
(3) The extent of solid solution of sulfur in molybdenum is approximately 1.5 atomic % (0.5 wt %).
(4) Molybdenum sesqu-isulfide (Mo₂S₃) formed at high temperatures is stable at 600°C.

Integral free energies of formation of equilibrium mixtures of Mo and S from solid Mo and diatomic sulfur vapor were calculated"--Abstract, page iii.

Advisor(s)

Larson, Andrew H.

Committee Member(s)

Webb, William H.
Schlechten, A. W.
Hagni, Richard D.

Department(s)

Materials Science and Engineering

Degree Name

M.S. in Metallurgical Engineering

Publisher

Missouri School of Mines and Metallurgy

Publication Date

1963

Pagination

vi, 59 pages

Note about bibliography

Includes bibliographical references (pages 57-58).

Rights

© 1963 Seth C. Schaefer, All rights reserved.

Document Type

Thesis - Open Access

File Type

text

Language

English

Thesis Number

T 1487

Print OCLC #

5950848

Electronic OCLC #

1046678397

Link to Catalog Record

http://merlin.lib.umsystem.edu/record=b2609553~S5

Recommended Citation

Schaefer, Seth C., "A thermodynamic study of the molybdenum-sulfur system at 1100⁰C" (1963). Masters Theses. 2858.
https://scholarsmine.mst.edu/masters_theses/2858