Title
Thermal studies to determine the accelerated ageing of flares
Author
de Klerk, W.P.C.
Krabbendam-La Haye, E.L.M.
Berger, B.
Brechbuhl, H.
Popescu, C.
TNO Defensie en Veiligheid
Publication year
2005
Abstract
Thermal analysis is an interesting technique to determine kinetic parameters of separate components, and also of a complete system to receive adequate information on the ageing process of pyrotechnic compositions. The investigated tracer is a tracking tracer of a Swiss missile. It is attached to a missile and produces during burning a red flame. The missile system is already in use for 15 years. Periodic inspections of the system take place every three years. These inspections, however only give information on the actual state of the tracer and not on the future state. The aim of this investigation is to predict the ageing behaviour of the tracer system to give additional information about the future use of the missile system. After two ageing profiles the tracer systems were tested on the test range at Armasuisse in Thun. The results of the testing show that an ageing period of 4 weeks at 60°C gives no changes in performance (light output and burning time). On the other side also a quite heavy ageing period of 4 weeks at 150°C was applied on tracer systems, which gives a dramatically change in burning time. The light output was even higher after this ageing profile, although the intensity changes a lot. © 2005 Akadémiai Kiadó, Budapest.
Subject
Ballistics
Kinetic analysis
Lifetime studies
Thermal analysis
Tracer
Aromatic hydrocarbons
Binders
Combustion
Computer simulation
High temperature applications
Ignition
Isotherms
Missiles
Pyrolysis
Thermoanalysis
Ageing profiles
Kinetic analysis
Lifetime studies
Tracers
Aging of materials
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DOI
https://doi.org/10.1007/s10973-005-0689-3
TNO identifier
238486
ISSN
1388-6150
Source
Journal of Thermal Analysis and Calorimetry, 80 (2), 529-536
Document type
article