Temperature profile analysis in combustion synthesis: II, Experimental observation

Temperature profile analysis in combustion synthesis: II, Experimental observation

Temp. profiles associated with passing of a self-propagating wave in combustion synthesis of ZrB sub 2 were investigated. From profile analysis, an activation energy of 144.5 plus or minus 15 kJ center dot mol- sup 1 was calculated and agreed well with the corresponding value obtained from wave velo...

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Veröffentlicht in:Journal of the American Ceramic Society 1992-01, Vol.75 (1), p.180-188
Hauptverfasser: Dunmead, Stephen D, Munir, Zuhair A, Holt, J
Format: Artikel
Sprache:eng
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Zusammenfassung:Temp. profiles associated with passing of a self-propagating wave in combustion synthesis of ZrB sub 2 were investigated. From profile analysis, an activation energy of 144.5 plus or minus 15 kJ center dot mol- sup 1 was calculated and agreed well with the corresponding value obtained from wave velocity measurements, 148.6 plus or minus 12 kJ center dot mol- sup 1 . Thermal diffusivity decreased slightly with increasing combustion temp., with values of 2.1- 1.79 multiplied by 10- sup 3 at 2609- 2909 K.
ISSN:0002-7820