Noniso-thermal analysis of C4 bonded explosives containing different cyclic nitramines

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216275%3A25310%2F13%3A39896349" target="_blank" >RIV/00216275:25310/13:39896349 - isvavai.cz</a>

Výsledek na webu

<a href="http://www.sciencedirect.com/science/article/pii/S0040603113000397" target="_blank" >http://www.sciencedirect.com/science/article/pii/S0040603113000397</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.tca.2013.01.011" target="_blank" >10.1016/j.tca.2013.01.011</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Noniso-thermal analysis of C4 bonded explosives containing different cyclic nitramines

Popis výsledku v původním jazyce

The thermal characteristics and decompn. kinetics of C4-bonded PBXs based on some attractive cyclic nitramines were investigated by means of nonisothermal TG and DSC techniques. It is shown that only a single decompn. process is obsd. for RDX-C4 while anobvious two-step process for mixt. of BCHMX-C4, CL-20-C4, and HMX-C4. The onset temp. of the exotherms were obsd. at 216.3, 238.7, 279.2, and 236.7° with the peak temps. of 235.1, 279.0, 231.2, and 233.7° for RDX-C4, BCHMX-C4, HMX-C4 and CL-20-C4, resp.Their corresponding exothermic decompn. processes were covered by energy changes of 1749, 1938, 1213, and 2639 J g-1, which are lower than that of their pure cyclic nitramines. It was also proved that C4 matrix has significant effect on the activation energy distribution of RDX, BCHMX and CL-20, whose initial autocatalysis effect was inhibited or weakened. With regard to HMX-C4, the activation energy of its initial step is much lower than that of the second step.

Název v anglickém jazyce

Noniso-thermal analysis of C4 bonded explosives containing different cyclic nitramines

Popis výsledku anglicky

The thermal characteristics and decompn. kinetics of C4-bonded PBXs based on some attractive cyclic nitramines were investigated by means of nonisothermal TG and DSC techniques. It is shown that only a single decompn. process is obsd. for RDX-C4 while anobvious two-step process for mixt. of BCHMX-C4, CL-20-C4, and HMX-C4. The onset temp. of the exotherms were obsd. at 216.3, 238.7, 279.2, and 236.7° with the peak temps. of 235.1, 279.0, 231.2, and 233.7° for RDX-C4, BCHMX-C4, HMX-C4 and CL-20-C4, resp.Their corresponding exothermic decompn. processes were covered by energy changes of 1749, 1938, 1213, and 2639 J g-1, which are lower than that of their pure cyclic nitramines. It was also proved that C4 matrix has significant effect on the activation energy distribution of RDX, BCHMX and CL-20, whose initial autocatalysis effect was inhibited or weakened. With regard to HMX-C4, the activation energy of its initial step is much lower than that of the second step.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

CF - Fyzikální chemie a teoretická chemie

OECD FORD obor

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Projekt

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Návaznosti

S - Specificky vyzkum na vysokych skolach<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2013

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Thermochimica Acta

ISSN

0040-6031

e-ISSN

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Svazek periodika

556

Číslo periodika v rámci svazku

March

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

7

Strana od-do

6-12

Kód UT WoS článku

000317376500002

EID výsledku v databázi Scopus

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