Masters Theses

Abstract

"The findings presented in this thesis are the result of a study of the hydration mechanism of pre-calcined periclase aggregates. It is hoped that these findings will provide the means to develop an economical, stable and hydration resistant layer on the surface of periclase aggregates by coating with appropriate chemical systems.

In the conduct of this study two sources of commercially obtained materials, Steetley 323, and China metal 90-10, supplied by the Quigley company, were characterized and treated with different concentrations of boron-containing water suspensions in order to impose an altered layer which would resist hydration.

Variables affecting hydration investigated in this study included: size of materials, concentrations of boron chemical suspensions, steam temperatures and pressures, and post-calcination temperatures. Alginate thickeners with varying concentrations of boric acid were used to control the concentrations of boron on the surfaces of the aggregates.

The overall investigation in this study was divided into four parts:

  1. Characterization of calcined periclase aggregates.
  2. Development of coating treatment methods.
  3. Examining the dependence of the hydration resistance on different boron concentrations, and
  4. Elucidation of the hydration mechanism"--Abstract, pages ii-iii.

Advisor(s)

Moore, Robert E., 1930-2003

Committee Member(s)

Kohser, Ronald A.
Howard, Scott A.

Department(s)

Materials Science and Engineering

Degree Name

M.S. in Ceramic Engineering

Comments

The technical and financial support provided by Quigley Co. Inc. is greatly appreciated.

Publisher

University of Missouri--Rolla

Publication Date

Spring 1987

Pagination

xiv, 93 pages

Note about bibliography

Includes bibliographical references (pages 29-93).

Rights

© 1987 Chao-Min Cheng, All rights reserved.

Document Type

Thesis - Open Access

File Type

text

Language

English

Thesis Number

T 5462

Print OCLC #

16799208

Electronic OCLC #

1053889731

Download

Share

 
COinS