This article is cited in 2 papers

Quasi-homogeneous and pseudospin modes of zirconium-wire combustion in air

S. G. Vadchenko

Russian Academy of Sciences, Institute of Structural Macrokinetics and Material Science Problems, Chernogolovka, 142432

Abstract: A novel experimental technique is proposed for examining the transition mechanism from quasi-homogeneous to heterogeneous combustion – burning of a variable-pitch spring. Depending on the pitch of air-combustible zirconium springs, two combustion modes are possible. Quasi-homogeneous (layer-by-layer) combustion is observed in the case of small-pitch springs; as the spring pitch increases, quasi-homogeneous combustion transforms into heterogeneous (pseudo-spin) combustion. Conditions for the occurrence of various combustion modes, depending on the spring diameter and pitch, are studied.

Keywords: heterogeneous combustion, spin, zirconium oxidation.

UDC: 546

Received: 22.01.2002

 English version: Combustion, Explosion and Shock Waves, 2003, 39:1, 59–63

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