TITLE

Investigations on the self propagating reactions of nickel and aluminum multilayered foils

AUTHOR(S)
Gunduz, Ibrahim Emre; Fadenberger, Konrad; Kokonou, Maria; Rebholz, Claus; Doumanidis, Charalabos C.
PUB. DATE
September 2008
SOURCE
Applied Physics Letters;9/29/2008, Vol. 93 Issue 13, p134101
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
The self-propagating reaction of nickel-aluminum thin film multilayers with a bilayer thickness of ∼43 nm was investigated using high-speed optical camera and infrared thermometry. The results indicate a two-stage reaction with two different characteristic temperatures. Following ignition, the flame front propagates near the reverse peritectic transformation temperature of Ni2Al3 into NiAl and liquid at 1406 K. The reaction continues with the growth of NiAl until the melting temperature of 1911 K is reached. The reaction mechanism and kinetics are discussed.
ACCESSION #
34771919

 

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