Effect of temperature, aging, and composition on phase development in the system Al₂O₃-P₂O₅-H₂0.

Author

John Allan Middleton

Abstract

The chemical and physical conditions for the formation of various phases of aluminum phosphate were studied. Mixtures of Al₂O₃ and H₃PO₄ were aged in sealed containers and examined for phase development by X-ray diffraction. The results revealed the aging of samples to be a critical process for the formation of equilibrium phase assemblages at low temperatures, Initial composition becomes important as equilibrium is neared and at elevated temperatures when the molar ratios of Al₂O₃, P₂O₅, and H₂O determine what phases will be formed. Temperature determines the reaction rate (time needed for aging) and the H₂O content"-- Abstract, p. ii

Advisor(s)

Sorrell, Charles A.

Committee Member(s)

Moore, Robert E., 1930-2003
Bolter, Ernst

Department(s)

Materials Science and Engineering

Degree Name

M.S. in Ceramic Engineering

Publisher

University of Missouri--Rolla

Publication Date

1975

Pagination

vii, 45 pages

Note about bibliography

Includes bibliographical references (pages 27-28)

Rights

© 1975 John Allan Middleton, All rights reserved.

Document Type

Thesis - Open Access

File Type

text

Language

English

Thesis Number

T 4039

Print OCLC #

5982910

Recommended Citation

Middleton, John Allan, "Effect of temperature, aging, and composition on phase development in the system Al₂O₃-P₂O₅-H₂0." (1975). Masters Theses. 3069.
https://scholarsmine.mst.edu/masters_theses/3069