Thermal Efficiency of Oxy-Acetylene Flame (Report 2)

Thermometry of an oxy-acetylene flame using multiplex degenerate four-wave mixing of C <Subscript>2 </Subscript>

Thermometry of an oxy-acetylene flame using multiplex Degenerate Four-Wave Mixing (DFWM) of C2 is demonstrated. More than 100 rotational transitions in the d3Hg ~ a3H,, (0, 0) Swan band of C2 could be recorded simultaneously by use of a pulsed, broad bandwidth "modeless" laser. Temperatures were inferred by fitting temperature-dependent synthetic spectra of singleor multiple-shot averaged spect...

Experiments on ceramic formation from liquid precursor spray axially injected into an oxy-acetylene flame

An aqueous ceramic precursor solution was sprayed axially into an oxy-acetylene flame to produce yttria-stabilized zirconia ceramic deposits. Temperature and velocity fields of the oxy-acetylene flame were characterized by chemiluminescence and particle image velocimetry. Deposit samples were extracted from the flame at several downstream locations to study deposit evolution. The deposit phase ...

XPS and Auger study of the radial variations of diamond thin films grown by the oxy-acetylene flame method

Free standing diamond thin films grown by the oxyracetylene frame method have been investigated by X-ray photoelectron spectroscopy (XPS) and Auger electron spectroscopy (AES). The radial distribution of the sp2-hybridized carbon species on the films and, consequently, the film quality, have been determined. While XPS does not seem to be an appropriate technique to distinguish between very smal...

Degenerate four-wave mixing spectroscopy and spectral simulation of C2 in an atmospheric pressure oxy-acetylene flame

The Effect of Mg(OH)2 Nanoparticles on the Thermal Stability and Flame Retardancy of Paraloid Nanocomposites

Paraloid-Mg(OH)2 nanocomposites were synthesized via sonochemical method. Nanostructures were characterized by XRD and SEM. Thermal stability behavior of paraloid filled with magnesium hydroxide was investigated by thermogravimetric analysis (TGA). The influence of Mg(OH)2 nanostructures on the flame retardancy of the paraloid matrix was studied using UL-94 analysis. Our r...