Pregled bibliografske jedinice broj: 113047
Determination of Arrhenius kinetic constants for duble base propellants by non-isothermal DSC measurement. Influence of sample self-heating
Determination of Arrhenius kinetic constants for duble base propellants by non-isothermal DSC measurement. Influence of sample self-heating // New trends in resarch of energetic materials / Zeman, Svatopluk (ur.).
Pardubice: University of Pardubice, 2003. str. 374-391 (predavanje, međunarodna recenzija, cjeloviti rad (in extenso), znanstveni)
CROSBI ID: 113047 Za ispravke kontaktirajte CROSBI podršku putem web obrasca
Naslov
Determination of Arrhenius kinetic constants for duble base propellants by non-isothermal DSC measurement. Influence of sample self-heating
Autori
Sućeska, Muhamed ; Rajić, Maša ; Matečić Mušanić, Sanja
Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni
Izvornik
New trends in resarch of energetic materials
/ Zeman, Svatopluk - Pardubice : University of Pardubice, 2003, 374-391
Skup
New trends in resarch of energetic materials
Mjesto i datum
Pardubice, Češka Republika, 22.04.2003. - 24.04.2003
Vrsta sudjelovanja
Predavanje
Vrsta recenzije
Međunarodna recenzija
Ključne riječi
thermal analysis; self-heating; duble base propellant; stability
(thermal analysis; self-heating; double base propellant; stability)
Sažetak
In order to predict with required accuracy the shelf-life and thermal hazard potential of an explosive material a true decomposition mechanism and true kinetic constants should be known. Various experimental techniques and experimental conditions, various kinetic approaches and data treatments procedures have been applied in order to evaluate Arrhenius’ kinetic constants from experimental data as accurately as possible. Consequently, the kinetic constants for an energetic material reported in literature may be in considerable disagreement. In this paper we studied the influence of propellant sample self-heating degree on the values of Arrhenius kinetic constants, using non-isothermal DSC measurements and the isoconversional kinetic approach described by Ozawa, and Flynn and Wall. The results have shown that Ozawa method is capable of producing valid results for double base propellants, provided that self-heating is minimised by adjustment of the experimental conditions. The activation energy was calculated to be ~173 kJ/mol in the case when sample self-eating has been avoided, while in the case of samples self-heating existence the activation energy was calculated to be ~140 kJ/mol.
Izvorni jezik
Engleski
Znanstvena područja
Kemija
