Masters Theses

Abstract

"Glasses of the formula xNa2O*xCaO*(100-x)B2O3 glasses (where 5≤ x≤ 20) were reacted in pH 4, 7, and 10 buffer solutions, and distilled water at room temperature. Trends in weight loss and pH change were analyzed. Dissolution rates were calculated after two hours in solution. Inductively Coupled Plasma-Optical Emission Spectroscopy and Atomic Absorption analyses were performed on the post reaction solutions. Infrared Reflectance Spectroscopy, X-Ray Diffraction, and Analytical Scanning Electron Microscopy were used to characterize the reacted surfaces. All compositions dissolved congruently in all solutions studied. The minimum in dissolution rate for a particular solution corresponds to the composition with the greatest fraction of four coordinated borons, 30-35 mole% [Na2O+ CaO] as has been documented previously"--Abstract, page ii.

Advisor(s)

Brow, Richard K.

Committee Member(s)

Day, D. E.
Wronkiewicz, David J.

Department(s)

Materials Science and Engineering

Degree Name

M.S. in Ceramic Engineering

Sponsor(s)

University of Missouri Research Board
University of Missouri--Rolla. Materials Research Center

Publisher

University of Missouri--Rolla

Publication Date

Spring 2002

Journal article titles appearing in thesis/dissertation

  • Effect of pH on borate glass dissolution
  • Hydroxyapatite formation on alkali borate glasses in phosphate solutions

Pagination

xvi, 109 pages

Note about bibliography

Includes bibliographical references.

Rights

© 2002 Jessica Dawn Lowry, All rights reserved.

Document Type

Thesis - Restricted Access

File Type

text

Language

English

Subject Headings

Glass -- ResearchBorates

Thesis Number

T 8065

Print OCLC #

50296202

Electronic OCLC #

922981187

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