Nano-sized Al (nAl) features high reactivity implying possible issues related to its aging during storage. In this work, the aging behavior of micron-sized Al and nAl is investigated considering different relative humidity (RH) conditions (10% and 80%) at the temperature of 333 K. The marked aging sensitivity of nAl (100 nm) is testified by an almost full metal content (C-Al) loss in nearly 30 hours (RH = 80%). Under the same condition, in 14 days of aging, the C-Al of micron sized aluminum (30 mu m) decreases from (99.1 +/- 0.2)% to (86.8 +/- 0.9)%.
Aluminum powders: aging effects on metal content and thermogravimetry reactivity
Paravan, C.;Verga, A.;Dossi, S.;Maggi, F.;Galfetti, L.
2019-01-01
Abstract
Nano-sized Al (nAl) features high reactivity implying possible issues related to its aging during storage. In this work, the aging behavior of micron-sized Al and nAl is investigated considering different relative humidity (RH) conditions (10% and 80%) at the temperature of 333 K. The marked aging sensitivity of nAl (100 nm) is testified by an almost full metal content (C-Al) loss in nearly 30 hours (RH = 80%). Under the same condition, in 14 days of aging, the C-Al of micron sized aluminum (30 mu m) decreases from (99.1 +/- 0.2)% to (86.8 +/- 0.9)%.File in questo prodotto:
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