Broad-Band Microwave Dielectric Property Characterization and Nondestructive Inspection of Various Glass Specimens

Abstract

Distinction among various silicate glasses with different boron bond structure is an important practical issue in the glass making industry. To this end, it has been suggested that microwave dielectric property characterization may be a useful tool to distinguish among these glasses since in the past this technique has shown the potential for characterizing different types of materials via their dielectric properties. Therefore, an existing 2-port transmission line measurement technique, using an HP8510B network analyzer, is used to measure the dielectric properties of four different types of glass specimens. These electrical properties are measured over a wide band of microwave frequencies covering X- and Ku-band (8.2 GHz-18 GHz). The results indicate that each glass specimen with its own specific chemistry (different boron chemistry) has distinct dielectric properties as function of frequency. It is also shown that these specimens can be easily distinguished from one another when inspected by an open-ended rectangular waveguide aperture probe for on-line, real-time and non-contact testing of thin glass sheets.

Department(s)

Electrical and Computer Engineering

Keywords and Phrases

Boron; Glass; Microwaves; Nondestructive Testing; Material Characterization

International Standard Serial Number (ISSN)

1058-9759

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2000 Taylor & Francis, All rights reserved.

Publication Date

31 Jul 2000

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