Oxidation behavior of aerospace materials in high enthalpy flows using an oxyacetylene torch facility

Melia Miller-Oana; Paul Neff; Mario Valdez; Amber Powell; Matthew Packard; Luke S. Walker; Erica L. Corral

doi:10.1111/jace.13462

Oxidation behavior of aerospace materials in high enthalpy flows using an oxyacetylene torch facility

Melia Miller-Oana, Paul Neff, Mario Valdez, Amber Powell, Matthew Packard, Luke S. Walker, Erica L. Corral

Research output: Contribution to journal › Article › peer-review

45 Scopus citations

Abstract

The oxyacetylene torch facility is used to measure the ablation rates of graphite and the surface temperatures of different aerospace materials. The free-stream flame environment is characterized as a function of flame chemistry for heat flux, pO₂, and flow velocity. Measured ablation rates for graphite increase as a function of increasing heat flux and pO₂, which are validated by applying an oxygen diffusion based model. The model uses experimentally measured values for temperature, pO₂, and gas velocity in order to confirm torch testing results are reliable and reproducible. Surface temperatures of ultra-high temperature ceramic composites are measured as a function of increasing heat flux and show an enthalpic cooling effect on the flame during oxidation testing.

Original language	English (US)
Pages (from-to)	1300-1307
Number of pages	8
Journal	Journal of the American Ceramic Society
Volume	98
Issue number	4
DOIs	https://doi.org/10.1111/jace.13462
State	Published - Apr 2015

ASJC Scopus subject areas

Ceramics and Composites
Materials Chemistry

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10.1111/jace.13462

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title = "Oxidation behavior of aerospace materials in high enthalpy flows using an oxyacetylene torch facility",

abstract = "The oxyacetylene torch facility is used to measure the ablation rates of graphite and the surface temperatures of different aerospace materials. The free-stream flame environment is characterized as a function of flame chemistry for heat flux, pO2, and flow velocity. Measured ablation rates for graphite increase as a function of increasing heat flux and pO2, which are validated by applying an oxygen diffusion based model. The model uses experimentally measured values for temperature, pO2, and gas velocity in order to confirm torch testing results are reliable and reproducible. Surface temperatures of ultra-high temperature ceramic composites are measured as a function of increasing heat flux and show an enthalpic cooling effect on the flame during oxidation testing.",

author = "Melia Miller-Oana and Paul Neff and Mario Valdez and Amber Powell and Matthew Packard and Walker, {Luke S.} and Corral, {Erica L.}",

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AU - Miller-Oana, Melia

AU - Neff, Paul

AU - Valdez, Mario

AU - Powell, Amber

AU - Packard, Matthew

AU - Walker, Luke S.

AU - Corral, Erica L.

PY - 2015/4

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AB - The oxyacetylene torch facility is used to measure the ablation rates of graphite and the surface temperatures of different aerospace materials. The free-stream flame environment is characterized as a function of flame chemistry for heat flux, pO2, and flow velocity. Measured ablation rates for graphite increase as a function of increasing heat flux and pO2, which are validated by applying an oxygen diffusion based model. The model uses experimentally measured values for temperature, pO2, and gas velocity in order to confirm torch testing results are reliable and reproducible. Surface temperatures of ultra-high temperature ceramic composites are measured as a function of increasing heat flux and show an enthalpic cooling effect on the flame during oxidation testing.

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Oxidation behavior of aerospace materials in high enthalpy flows using an oxyacetylene torch facility

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