81. Kinetic studies on the AGOT and pyrolytic graphite

Bradshaw, W.; Bonesteel, R.M.; Ong, Jy

doi:10.1016/0008-6223(65)90147-8

Cited by 3 publications

(1 citation statement)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…However, there is a lack of accurate kinetic data for these reactions at the wall temperatures (T w > 2000° K) of interest here. Since two grades of Presented as Paper 70-638 at the AIAA 6th Propulsion Joint Specialist Conference, San Diego, Calif., June 15- 19,1970; submitted August 18, 1970; revision received January 4, 1971. This work was supported by the Air Force Rocket Propulsion Laboratory under Contract F04611-69-C-0070, monitored by J. R. Ellison.…”

Section: Introductionmentioning

confidence: 99%

Kinetics of High-Temperature Reactions of Graphite with Carbon Dioxide and Water

King¹

1971

Journal of Spacecraft and Rockets

View full text Add to dashboard Cite

An experimental study of the erosion of two graphites (CFZ and PO3) by water and CO 2 at elevated temperatures was performed using a liquid rocket simulator with H2-O2-N2 feed for the water reaction study, and CO-O 2 -N 2 for the CO2 study. Specimen wall T w and reactant partial pressure P z were varied systematically to determine their effects on erosion rate JR. In addition, the effect of excess H2 on the water-graphite reaction was studied. The graphite-CO2 reaction was found to be first order with respect to Pco 2 and exhibited a rate-maximizing T w above which R decreased with further increase in T w to a local minimum before again turning upward. The rates measured were considerably higher than those measured for similar graphites by previous investigators in equipment less closely simulating an actual rocket motor. The graphite-H 2 O reaction was of zero order over the H 2 O pressure range studied. The temperature dependency appeared to decrease strongly at high temperature (2400-2500°K), similar to the behavior noted with the CO 2 -graphite reaction. Addition of a large amount (on a molar basis) of H2 to the H 2 O system did not markedly affect R.

show abstract

Section: Introductionmentioning

confidence: 99%