Date of Award

Spring 1948

Document Type

Thesis - Restricted

Degree Name

Master of Science (MS)

Department

Physics

First Advisor

Barkow, Arthur G.

Second Advisor

Greene, J. B.

Third Advisor

Carroll, Joseph

Abstract

In 1902 the first report on the unusual electrical properties of rutile were published. It is only recently, however, that the properties of barium, calcium and strontium titanate have been investigated. These materials have become increasingly important in applications to the electrical field, reaching a peak during World War II, when many forms of these titanates were vital parts of the electrical equipment in use. During the war the U.S. Government sponsored research on these materials, but due to security regulations, publications were restricted. Since the war's end, however, these papers have begun to appear in the scientific journals more frequently. Each of the titanates has its own electrical characteristics. One particular compound may have a good dielectric constant, but poor power factor, another may have a good power factor, but poor dielectric constant, and so on. The problem has been one of designing mixtures of these various compounds so as to produce a mixture having the particular characteristics desired. As the needs of the electrical designers change there is a constant need for new mixtures with new electrical characteristics. In the past when a condenser with certain characteristics was desired, compounds were mixed and tested. This meant the mixing and testing of thousands of mixtures until the desired one was obtained. It is therefore of utmost importance that a mixture having the desired characteristics can be produced without the drudgery of trial and error methods. It is with this end in mind that this study is conducted. The primary tool is the x-ray beam with the powder camera technique.

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