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- Article name
- Influence of electric current on reactive sintering of laminate system Al-Ti
- Authors
- SINCHUK A. V., , ssts@iipt.com.ua, Institute of Pulse Processes and Technologies, NAS of Ukraine, Nikolaev, Ukraina
TSURKIN V. N., , dpta@iipt.com.ua, Institute of Pulse Processes and Technologies, NAS of Ukraine, Nikolaev, Ukraina
IVANOV A. V., , dpta@iipt.com.ua, Institute of Pulse Processes and Technologies, NAS of Ukraine, Nikolaev, Ukraina
DMITRISHINA Ya. Yu., , dpta@iipt.com.ua, Institute of Pulse Processes and Technologies, NAS of Ukraine, Nikolaev, Ukraina
CHEREPOVSKY S. S., , dpta@iipt.com.ua, Institute of Pulse Processes and Technologies, NAS of Ukraine, Nikolaev, Ukraina
PHESCHUK M. L., , dpta@iipt.com.ua, Institute of Pulse Processes and Technologies, NAS of Ukraine, Nikolaev, Ukraina
- Keywords
- aluminium foil / titanium foil / foil package / reactive sintering / pulse electric current / Joule heating / electro- migration / solid phase synthesis / metal-intermetallic laminate composite
- Year
- 2014 Issue 1 Pages 24 - 32
- Code EDN
- Code DOI
- Abstract
- The study focuses on the action of the pulse electrical current on sintering of a laminate package consisting of Al and Ti foils with thickness 50 mm each arranged sequentially and biased. It is determined that current-induced rate of solid phase synthesis of intermetallides in a laminate package 1,5-2 fold increases, but transformation of laminate package into a metal-intermetallic composite is completed within 5 hours instead of 7-8 hours as under sintering without electrical current. The intermetallic layers growth depends on the quantity of electrical energy released in the laminate conductor over the time of current flowing. It is shown that Joule heating of the laminate boundaries and boundary electromigration of ions can be referred to the mechanisms providing speed up of heterogeneous chemical reactions. The most efficient in this case is a scheme of the unidirectional pulses passage under which the heat diffusion and electrical diffusion directions coincide.
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