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Title: Effect of dilution on reaction properties and bonds formed using mechanically processed dilute thermite foils

Journal Article · · Journal of Materials Science

Thermites have been used for over a century for joining applications and in this paper we present fully dense diluted thermite foils that react in a self-propagating manner and produce sufficient heat and molten braze to join aluminum-, magnesium-, and iron-based alloys. Al:NiO, Al:CuO, and Al:Cu2O thermite systems were systematically diluted with Ni or Cu to decrease the maximum reaction temperature and hence the amount of gas generated during the selfpropagating reactions. Velocities and mass ejection were measured for reactions within free-standing foils as a function of dilution. As a result, the dilution that leads to quenching during propagation within a bond is identified, and finally, Al:NiO:10wt%Ni and Al:CuO:40wt%Cu foils were used to demonstrate the ability to join aluminum-, magnesium-, and iron-based alloys.

Research Organization:
Johns Hopkins Univ., Baltimore, MD (United States)
Sponsoring Organization:
USDOE Office of Energy Efficiency and Renewable Energy (EERE), Transportation Office. Vehicle Technologies Office
Contributing Organization:
The Johns Hopkins University, Institute for Applied Materials (IAM), Karlshruhe Institute of Technology (KIT)
Grant/Contract Number:
EE0006441
OSTI ID:
1644676
Journal Information:
Journal of Materials Science, Vol. 51, Issue 12; ISSN 0022-2461
Publisher:
SpringerCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 21 works
Citation information provided by
Web of Science

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Cited By (3)

SHS in Ni/Al Nanofoils: A Review of Experiments and Molecular Dynamics Simulations journal April 2018
Exploring the solid-state interfacial reaction of Al/Fe2O3 nanothermites by thermal analysis journal November 2018
Microstructure and Mechanical Properties of Exothermic-Reaction-Assisted Friction-Stir-Welded Nickel-Aluminum Bronze Alloy journal April 2019

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