An optical method of measuring the burning-surface temperature of condensed systems

Fundamentals of Solid-Propellant Combustion

“…5, May 1969, pp. 1604-1608 Purchased from American Institute of Aeronautics and Astronautics 174 T. L BOGGS 75 Axworthy, A. E., Flanagan, J. E., and Woolery, D. 0., "High Temperature Pyrolysis Studies of HMX, RDX, and TAGN," 15th JANNAF Combustion Meeting, CPIA Pub. 297, Feb. 1979, pp.…”

“…Hydrogen Cyanide (HCN) 75 Previously, Axworthy et al had 22 109 In the studies using the two-stage reactor, they showed that the HCN was due to primary pyrolysis and not due to secondary reactions. They also provide a possible explanation of why Rocchio and Juhasz 7 6 showed a decrease in HCN at 600 and 800°C: HCN decomposes rapidly on metal surfaces at these temperatures and may have decomposed on the metal ribbon in the Rocchio and Juhasz experiments.…”

“…Since the composition of these fuels is quite different from that of solid propellants, and the operating conditions for these studies d i f f e r from those of rocket motors, a discussion of these fuels is omitted. Interested readers are referred to the excellent review articles of Sirignano 75 and Williams. 7 6 ' 7 7 A.…”

“…At constant gas velocity and pressure, the erosive burning rate has been found to be somewhat independent of gas temperature. 10 ' 33 ' 61 ' 75 King 33 conducted tests in which the flame temperature of the driver grain (see Fig. 9) was varied from 1667 to 2425 K, while the test section propellant remained the same.…”

The Response of a Burning Solid Propellant Surface to Thermal Radiation

“…If the sensitivity were found to be mass dependent, then one would be back to the nonstationary response problem which the experiment was designed to avoid. Fortunately, the system was71 found to be insensitive to the three-fold change in initial sample mass. Several advantages were gained by using this technique:(1) consistent sample mounting was possible; (2) only changes in force are sensed by the transducer; and, (3) the very high spring constant of the transducer minimizes the problem of mass-dependent response characteristics which are unavoidable with more flexible systems.…”