Jinpeng Shen1, Zhiqiang Qiao1, Jun Wang, Kaili Zhang, Rui Li, Fude Nie, Guangcheng Yang*.Pressure loss and compensation in the combustion process of Al–CuO nanoenergetics on a microheater chip. Combustion and Flame 161 (2014) 2975–2981.

http://dx.doi.org/10.1016/j.combustflame.2014.04.015

Combustion and Flame 161 (2014) 2975–2981.pdf

This study investigates pressure loss and compensation in the combustion process of Al–CuO metastable intermolecular composite (MIC) on a microheater chip. A ball cell model of pressure change in the com-
bustion process is proposed to show the effects of pressure loss on the reaction rate and efficiency of
energy output at microscale. An effective compensation method for pressure loss is then developed by
integrating Al–CuO MIC with CL-20 (2,4,6,8,10,12-hexanitrohexaazaisowurtzitane) onto a SiO2/Cr/Pt/Au
microheater chip. The combustion processes of Al–CuO MIC with different weight percentages of fine
CL-20 particles on the microheater chips are observed by high-speed video recording. Results indicate
that the reaction of Al–CuO MIC is a slow combustion process that turns into intense deflagration after
adding fine CL-20 particles to Al–CuO MIC. The pressure–time characteristics indicate higher maximum
pressure and pressurization rate for Al–CuO/CL-20 because the pressure loss at microscale is well com-
pensated by the addition of fine CL20. This study proves the importance of pressure loss in the combustion process of MIC at microscale and provides an efficient compensation strategy for pressure loss to
improve the reaction rate and efficiency of energy output at microscale environment.