Moisture Desorption Rates from TATB Formulations: Experiments and Kinetic Models

Moisture desorption rates from TATB formulations: experiments and kinetic models.

The rate of water desorption from PBX-9502, a formulation containing 1,3,5-triamino-2,4,6-trinitrobenzene (TATB), is measured using temperature-programmed desorption and modeled using conventional kinetic modeling methods. The results of these studies show two stages of moisture release. At lower temperatures, the release is likely assisted by thermal expansion of the TATB and melting of the Ke...

Chemistry Resolved Kinetic Flow Modeling of TATB Based Explosives

Detonation waves in insensitive, TATB based explosives are believed to have multi-time scale regimes. The initial burn rate of such explosives has a sub-microsecond time scale. However, significant late-time slow release in energy is believed to occur due to diffusion limited growth of carbon. In the intermediate time scale concentrations of product species likely change from being in equilibri...

Uncertainty-quantifying models for chemical-kinetic rates

In this study, strategies are proposed for modeling the input uncertainties in combustion calculations under chemical-rate uncertainties using as an example hydrogen-oxygen kinetics. For this purpose, this report is divided into the following sections. In Section 2, an assessment is made to ascertain the limitations of state-of-the-art treatments of experimentally-derived chemical-kinetic uncer...

Moisture absorption-desorption effects in adhesive joints

This paper presents a study of moisture absorption-desorption effects in single lap adhesive joints. Experiments were carried out to characterise the moisture uptake of the single part epoxide adhesive, FM73. Tensile testing of single lap joints manufactured from aluminium alloy 2024 T3 and O and FM73 adhesive was carried out after the joints were exposed to different conditioning environments....

Experiments on quantum and thermal desorption from 4He films.