Journal
MATERIALS & DESIGN
Volume 110, Issue -, Pages 304-310Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.matdes.2016.08.002
Keywords
Nanothermite; NiO/Al; Three-dimensionally ordered macroporous; Magnetron sputtering; Heat release
Categories
Funding
- National Natural Science Foundation of China [51576101]
- National Science Foundation of Jiangsu Province of China [BK20141399]
- Fundamental Research Funds for the Central Universities [30915012101]
- Priority Academic Program Development of Jiangsu Higher Education Institutions
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The performances of nanothermites largely rely on a meticulous design of nanoarchitectures and the close assembly of components. Three-dimensionally ordered macroporous (3DOM) NiO/Al nanothermite film has been successfully fabricated by integrating colloidal crystal template (CCT) method and controllable magnetron sputtering. The as-prepared NiO/Al film shows uniform structure and homogeneous dispersity, with greatly improved interfacial contact between fuel and oxidizer at the nanoscale. The total heat output of 3DOM NiO/Al nanothermite has reached 2462.27 J.g(-1) at optimal the deposition time of 20 min, which is significantly more than the values of other NiO/Al structural systems that have been reported before. Intrinsic reduced ignition temperature (onset temperature) and less gas production render the wide applications of 3DOM NiO/Al nanothermite. Moreover, this design strategy can also be readily generalized to realize diverse 3DOM structured nanothermites. (C) 2016 Elsevier Ltd. All rights reserved.
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