Spin-coating Preparation of Micro-and Nano-thermite Films and Their Combustion Performances

doi:10.3969/j.issn.1000-1093.2017.02.009

Abstract

Abstract: The micro-and nano-thermite films are prepared using spin-coating with fluorine rubber as a binder. Ensuring the integrity of films, the mass content of fluorine rubber is minimized by controlling the spin-coating process. The minimum mass content of fluorine rubber is observed to be 7% through scanning electron microscope. The thermophysical properties of thermite films are tested using heat flux method. The measured thermal conductivity of Al/MoO₃/FE film is 75 W/(m·K) , and the burning rate is 30.6 m/s. Surprisingly, the thermal conductivity reaches to 126 W/(m·K), and the burning rate is increased to 867.9 m/s after appending reduced graphene oxide. The ignition test results of metal bridge show that micro-and nano-thermite films could improve the combustion performance of thermite and the ignition performance. Key

Key words: ordnancescienceandtechnology, micro-andnano-structure, thermitefilm, spin-coating, initiatingdevice

CLC Number:

TJ450.4

LI Han-jian, LIU Jie, REN Hui, JIAO Qing-jie. Spin-coating Preparation of Micro-and Nano-thermite Films and Their Combustion Performances[J]. Acta Armamentarii, 2017, 38(2): 267-272.

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第38卷
第2期2017 年2月兵工学报ACTA
ARMAMENTARIIVol.38No.2Feb.2017

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