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 journalArticle

21 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 languageEnglish (US)
Pages (from-to)1300-1307
Number of pages8
JournalJournal of the American Ceramic Society
Volume98
Issue number4
DOIs
StatePublished - 2015

ASJC Scopus subject areas

  • Ceramics and Composites
  • Materials Chemistry

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