Lab Capabilities

Phantom 7 Phantom 4
Two high-speed visible emission monochromatic cameras: a Phantom v4 capable of capturing 32,000 frames per second (fps) and a Phantom v7 capable of capturing 160,000 fps (Vision Research Inc.). These cameras can be used to capture multiple perspectives of the flame propagation such that images can be merged and presented in 'stereo'. Both cameras include a long-focus microscope (Infinity, K2) attachment. The spatial resolution of the microscope is 1.7 microns, while magnification may be varied from 50 to 800 times with corresponding viewable area varying from 0.15 to 25 mm2.
Oxford Labs Copper Vapor Laser
An effective strobe imaging system that uses one of the above Phantom cameras coupled with our existing copper-vapor laser to enable observations of surface reactions by peering through flames and focusing on the reaction surface. Many reactions are highly luminescent and can make imaging with a standard high-speed camera difficult. The coupled high speed imaging apparatus was designed such that the camera records reflected laser light from the reacting wave front. The idea works because the energy of the reflected laser light is significantly greater than the energy coming from the sample through the filter without laser illumination. The camera is programmed to accept the laser light and reject the broadband light emitted by the subject under study. This arrangement allows the camera to 'see' through flames and record details of processes that would otherwise be totally obscured by the background broad-band light.
Phoenix IR
Indigo (a division of FLIR) Phoenix high-speed (22,000 fps) Infrared (IR) camera captures thermal images at wavelengths ranging from 3 to 5 microns. Simultaneously, the IR camera (Phoenix) will show the spatial distribution of heat and energy while the visible emission cameras (Phantoms) show the spatial distribution of where reactions occur. The IR camera is used to quantify the energy (in terms of irradiance or temperature) transferred from a reacting thermite to a target substrate.
Netzsch TG-DSC/DTA
A NETZSCH STA 409 PC/4/H Luxx Simultaneous Thermo-Gravimetric and Differential Scanning Calorimeter / Differential Thermal Analyzer (TG-DSC/DTA) with a temperature range up to 1600 °C. This system is typically used for slow-heating (equilibrium) studies on energetic samples and measures heat flow as a function of time and temperature. The DTA will be used here to study the residue materials after the reaction to reveal the degree of reacted Al and oxidizer in a sample. In this way, we could determine weather complete combustion had occurred, or to what extent the Al reacted. The DTA will also be used to resolve the slow heating reaction kinetics for these reactions.
400W CO2
Ignition apparatus. For fast heating-rates, laser ignition allows a controllable input of energy to the thermite sample and enables ignition energy and time studies. Different ignition scenarios can provide this stimulus but we will employ our 400-W Coherent CO2 laser ignition apparatus. This system is coupled with a beam profiler and analyzer such that the energy distribution within the beam can be monitored as a function of time. Our associated laser optics can tune the energy distribution within the beam from a typical Gaussian distribution to a flat-top profile. In this way, we will not only know precisely how much energy is imparted to the sample but also how that energy is distributed over the sample.