The Chemical Micromechanism of Energetic Material Initiation

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216275%3A25310%2F23%3A39920213" target="_blank" >RIV/00216275:25310/23:39920213 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1002/9783527835348.ch19" target="_blank" >http://dx.doi.org/10.1002/9783527835348.ch19</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1002/9783527835348.ch19" target="_blank" >10.1002/9783527835348.ch19</a>

Jazyk výsledku

angličtina

Název v původním jazyce

The Chemical Micromechanism of Energetic Material Initiation

Popis výsledku v původním jazyce

The paper presents a brief survey of available results obtained from the studies of the initiation micromechanisms of mainly organic energetic materials (EMs) from the viewpoint of physical organic chemistry, with attention being paid to experimental results. It is stated here that chemical micromechanisms of the primary fission processes of the EM molecules in the “normal” initiation by mechanical stimuli (inclusive of the detonation course) and an electric spark should be the same as in the case of their low-temperature thermal decomposition. In this connection also super-initiation is mentioned, in which primary fissions should correspond to those in high-temperature thermal decomposition. Experimental methods for the probable reaction centers (chemical hot spots) found in the EMs molecules are discussed. Concerning the thermochemical aspects of the initiation reactivity, the application of the enthalpies of formation (or heats of combustion) results in less ambiguous relations with EM sensitivity in comparison to the hitherto widely used performance of these compounds. This new thermochemical approach might be applied to assess the possible primary fragmentation processes of macromolecular binders in the initiation of the plastic bonded explosives.

Název v anglickém jazyce

The Chemical Micromechanism of Energetic Material Initiation

Popis výsledku anglicky

The paper presents a brief survey of available results obtained from the studies of the initiation micromechanisms of mainly organic energetic materials (EMs) from the viewpoint of physical organic chemistry, with attention being paid to experimental results. It is stated here that chemical micromechanisms of the primary fission processes of the EM molecules in the “normal” initiation by mechanical stimuli (inclusive of the detonation course) and an electric spark should be the same as in the case of their low-temperature thermal decomposition. In this connection also super-initiation is mentioned, in which primary fissions should correspond to those in high-temperature thermal decomposition. Experimental methods for the probable reaction centers (chemical hot spots) found in the EMs molecules are discussed. Concerning the thermochemical aspects of the initiation reactivity, the application of the enthalpies of formation (or heats of combustion) results in less ambiguous relations with EM sensitivity in comparison to the hitherto widely used performance of these compounds. This new thermochemical approach might be applied to assess the possible primary fragmentation processes of macromolecular binders in the initiation of the plastic bonded explosives.

Druh

C - Kapitola v odborné knize

CEP obor

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OECD FORD obor

10403 - Physical chemistry

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2023

Kód důvěrnosti údajů

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

Název knihy nebo sborníku

Nano and Micro-Scale Energetic Materials: Propellants and Explosives

ISBN

978-3-527-35207-4

Počet stran výsledku

55

Strana od-do

569-623

Počet stran knihy

748

Název nakladatele

Wiley-VCH

Místo vydání

Weinheim

Kód UT WoS kapitoly

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