Accession Number : ADA139441

Title :   Thermal Evaluation of Selected Ablative Materials in Transient Low Heat Flux Environments.

Descriptive Note : Master's thesis,


Personal Author(s) : Marques,J P

PDF Url : ADA139441

Report Date : May 1983

Pagination or Media Count : 212

Abstract : This thesis attempts to evaluate the thermal performance of ablative materials subjected to a common, transient, low-heat flux environment. Experiments were conducted to provide backface, substrate, and surface temperature histories for each of the ten ablators under examination. The tests are useful in determining the relative merit of the materials, and can be used as a screening tool by removing obviously poor performers from further evaluation. Data obtained during testing are correlated with results of a sophisticated computer ablation model. The ultimate objective of these experimental evaluations is the relative ranking of materials studied, and subsequent selection of the ablator which provided the best thermal protection in the environment of concern, based upon applicable thermal insulation performance indices. (Author)

Descriptors :   *Ablative materials, *Composite materials, *Thermal analysis, *Thermal properties, Heat flux, Low rate, Transients, Test and evaluation, Test methods, Temperature, Substrates, Surfaces, Ablation, Mathematical models, Computerized simulation, Thermal insulation, Environments, Thermal conductivity

Subject Categories : Laminates and Composite Materials
      Miscellaneous Materials
      Test Facilities, Equipment and Methods

Distribution Statement : APPROVED FOR PUBLIC RELEASE