Effect of dilution on reaction properties and bonds formed using mechanically processed dilute thermite foils
- Johns Hopkins Univ., Baltimore, MD (United States)
- Karlshruhe Institute of Technology (KIT), Eggenstein-Leopoldshafen (Germany)
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
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