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.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Jan 22, 2015
- Source ID
- 10.1111/jace.13462
Entities
People
- Amber Powell
- Erica L. Corral
- Luke S. Walker
- Mario Valdez
- Matthew Packard
- Melia Miller‐oana
- Paul Neff
Organizations
- Air Force Office of Scientific Research
- National Science Foundation
- University of Arizona