Premium
Study on Thermal Behaviour of AP/LiBH 4 Energetic System
Author(s) -
Ding Xiaoyong,
Shu Yuanjie,
Xu Hongtao,
Chen Zhiqun
Publication year - 2018
Publication title -
propellants, explosives, pyrotechnics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.56
H-Index - 65
eISSN - 1521-4087
pISSN - 0721-3115
DOI - 10.1002/prep.201700033
Subject(s) - isothermal microcalorimetry , ammonium perchlorate , explosive material , thermal decomposition , materials science , thermal , ignition system , energetic material , grain size , chemical engineering , chemistry , analytical chemistry (journal) , thermodynamics , metallurgy , inorganic chemistry , organic chemistry , physics , engineering , enthalpy
Ammonium perchlorate(AP) and LiBH 4 can form an oxidation‐fuel energetic system, which provides a new development direction in designing novel mixed explosive formula. The microcalorimetry and self‐designed slow cook‐off setup were used to study thermal performance of AP/LiBH 4 energetic powders and grains respectively. Experimental results show that heat release in microcalorimetry method for the mixed system at low temperature was due to the reaction between LiBH 4 and residual water vapour. The oxidant gases from AP decomposition participate in the oxidation of LiBH 4 at high temperature. The ignition temperature for the AP/LiBH 4 grain was 270 °C and the explosion reactions were violent in slow cook‐off test.