Processed reactive metal particulate combustibility

Abstract

AbstractBesides the usual particulate combustibility sensitivity to composition and particle size, processed metal particulate combustibility also depends on processing and handling complications, including additives and impurities, which can alter the particle morphology and surface oxide layer characteristics. These other complications render it difficult to generalize reactive processed particulate combustibility properties without testing to provide accurate property data. Examples of these considerations are given with regard to explosibility data for processed/waste particulate of different size and shape and moisture/additive levels for aluminum, manganese, titanium, and zirconium. As an example of the enormous variations in explosibility for these materials and particles, the data for normalized rate‐of‐pressure‐rise, Kst, for aluminum particulate range from 2 to 658 bar‐m/s.