Methodology, Technical Approach and Measurement Techniques for Testing of TPM Thermal Protection Materials in IPM Plasmatrons
Abstract
An induction plasmatron application for testing of thermal protection materials is discussed in presented paper on the basis of 35-years experience of Plasma Laboratory of IPM RAS. Metodology of testing of thermal protection materials in plasmatrons was based on simulation of hypersonic reentry heating near stagnation point using subsonic plasma jets, possibility to regulate pressure and flow enthalpy smoothly and independently of one another and the using of plasmatron's advantages such as purity of plasma flow, its high stability and reproducibility as well as wide ranges of realized pressure and heat flux. Purity of plasma flow allows to fulfill longterm aging tests (up to 100 15-minutes testing cycles for one sample) at excellent stability and reproducibility flow parameters. Conventional techniques of measurements and analysis such as pyrometry, SEM etc. are discussed together with developed approach to study of thermochemical stability of materials using complex application of optical spectral analysis, tests in different gases and methods of post test analysis.
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 01, 2000
- Accession Number
- ADP010737
Entities
People
- A. N. Gordeev