Accession Number:

AD0837693

Title:

RESISTANCE AND CAPACITANCE MEASUREMENTS ON LAMELLAR GRAPHITE-AMMONIA COMPOUNDS

Descriptive Note:

Master's thesis

Corporate Author:

NAVAL POSTGRADUATE SCHOOL MONTEREY CA

Personal Author(s):

• Thomas, Kinnison H.

Report Date:

1968-06-01

Pagination or Media Count:

41.0

Abstract:

The theory of spontaneous polarization in ferroelectric solids leading to an infinite value in the dielectric constant is developed from classical electrodynamics and thermodynamics. The nature of the lamellar graphite compounds is discussed and similarities in the structure of one of these, the graphite-ammonia compound, to a recognized ferroelectric, Potassium ferrocyanide trihydrate, is pointed out. The details of the equipment and the procedures necessary to form the lamellar graphite-ammonia compound using pyrolytic graphite and to test the compound to determine if it exhibits ferroelectric properties are discussed. Ferroelectricity in the graphite-ammonia compound was not observed. Differences in the results obtained using pyrolytic graphite and those obtained using polycrystalline graphite by other observers to form the graphite-ammonia compound are pointed out and discussed.

Descriptors:

• *AMMONIA
• *FERROELECTRIC MATERIALS
• *GRAPHITE
• CAPACITANCE
• COMPLEX COMPOUNDS
• CRYSTAL STRUCTURE
• DIELECTRIC PROPERTIES
• ELECTRICAL RESISTANCE
• ELECTROLYSIS
• FERROELECTRICITY
• POLARIZATION
• PYROLYTIC GRAPHITE
• THEORY
• THESES

Subject Categories:

• Physical Chemistry
• Electricity and Magnetism

Distribution Statement:

APPROVED FOR PUBLIC RELEASE