IR imaging for combustion characteristics and optical properties of boron
Netzer, David W.
MetadataShow full item record
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.
Approved for public release; distribution is unlimited
Showing items related by title, author, creator and subject.
Whisman, Curtis D. (Monterey, California. Naval Postgraduate School, 1992-09);The optical properties of motor aluminum oxide are required inputs to current plume signature prediction codes, such as SIRRM. Accurate predictions are possible only if variations in the particle emissivity due to changes ...
Chozev, Yair (Monterey, California. Naval Postgraduate School, 1985-07-01); NPS-67-85-004CRThis paper presents a summary of the experimental results and studies of magnesium combustion in steam. The major subject of these studies was to measure the temperature of magnesium particles after the particles had been ...
Overland, James E.; Guest, Peter S. (1991);Arctic cooling through the fall‐winter transition is calculated from a coupled atmosphere‐sea ice thermal model and compared to temperature soundings and surface measurements made north of Svalbard during the Coordinated ...