铝粉/聚四氟乙烯机械活化含能材料的制备及其微观性能研究

doi:10.11896/j.issn.1005-023X.2018.06.008

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Abstract In order to study the properties of aluminum powder/polytetrafluoroethylene (Al/PTFE) mechanical activated energetic composites (MAECs), MAECs were prepared by high energy ball milling with different milling time. The micro morphology and surface element distribution of MAECs were analyzed. The phase structure and chemical structure of the materials were also characterized. Then the interaction between PTFE and different crystal surfaces of Al was studied by molecular dynamics. Research results showed that PTFE contact closely with Al to form a thin sheet with diameter of about 100 μm after a long period of strong mechanical energy. With ball milling more than 20 min, Al and PTFE dispersed uniformly, but there was a certain gap with the absolute dispersion. High energy ball milling brings only a change in the microstructure of Al/PTFE composites. The interaction between PTFE and different crystal surfaces of Al were dominated by Van der Waals’ force.

Key words： mechanical activated energetic composites aluminum powder polytetrafluoroethylene(PTFE) ball milling micro properties

Published: 25 March 2018

CLC number:

TJ55

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	Articles by authors
	TAO Jun
	WANG Xiaofeng
	HAN Zhongxi
	FENG Bo
	NAN Hai
	XIE Zhongyuan
	HUANG Yafeng

Cite this article:

TAO Jun,WANG Xiaofeng,HAN Zhongxi, et al. Preparation and Microstructure of Aluminum Powder/Polytetrafluoroethylene Mechanical Activated Energetic Composites[J]. Materials Reports, 2018, 32(6): 894-898.

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http://www.mater-rep.com/EN/10.11896/j.issn.1005-023X.2018.06.008 OR http://www.mater-rep.com/EN/Y2018/V32/I6/894

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