IR imaging for combustion characteristics and optical properties of boron
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Authors
Yang, Jen-Cheng
Subjects
Boron oxide
Infrared
Optical properties
Infrared
Optical properties
Advisors
Netzer, David W.
Date of Issue
1992-06
Date
Publisher
Monterey, California. Naval Postgraduate School
Language
en_US
Abstract
An experimental investigation was conducted to determine if a new high speed IR
microscope could be used to study the ignition and combustion characteristics of
boron/boron carbide and to measure the particle emissivity as a function of temperature.
Air heater limitations did not permit the investigation of ignition characteristics.
Emissivity in the 2 - 5 fim band was measured as a function of temperature using a small
boron filament. Data obtained using different IR band-pass filters resulted in
significantly different results due to the apparent dependence of the emissivity of boron
oxide on both temperature and wavelength. It was also found that care must be used to
insure that the entire image is in sharp focus and that a means must be provided for
measuring an accurate surface temperature.
Type
Thesis
Description
Series/Report No
Department
Aeronautical Engineering
Organization
Naval Postgraduate School
Identifiers
NPS Report Number
Sponsors
Funder
Format
33 p.;28 cm.
Citation
Distribution Statement
Approved for public release; distribution is unlimited.