Abstract
Results of DTA-TG investigation and chemical analysis of electro-exploded aluminum nanopowders, passivated and/or coated with the non-inert reagents: nitrocellulose (NC), oleic acid (C17H33COOH) and stearic acid (C17H35COOH), which were suspended in kerosene and ethanol, amorphous boron, nickel, fluoropolymer, ethanol and air (for comparison), are discussed. Surface protection of aluminum nanopowders by coatings of different origin results in significant advantages in the energetic properties of the powders. Aluminum nanopowders with a protecting surface show increased stability to oxidation in nitrogen, air and in water during storage period. On the basis of the experimental results, a diagram of the formation and stabilization of the coatings is proposed. The kinetics of the interaction of aluminum nanopowders with nitrogen, air and water is discussed. Recommendations concerning the efficiency of non-inert reagent passivation are proposed on the basis of comprehensive analysis of the experimental data.
| Original language | English |
|---|---|
| Pages (from-to) | 401-409 |
| Number of pages | 9 |
| Journal | Propellants, Explosives, Pyrotechnics |
| Volume | 31 |
| Issue number | 5 |
| DOIs | |
| Publication status | Published - Oct 2006 |
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Keywords
- Aluminum nanoparticle
- DTA-DSC-TG
- Non-inert coatings
- Passivation
- SEM
- TEM
ASJC Scopus subject areas
- Chemistry (miscellaneous)
- Chemical Engineering(all)
Cite this
Characterization of aluminum powders : II. Aluminum nanopowders passivated by non-inert coatings. / Gromov, Alexander; Ilyin, Alexander; Förter-Barth, Ulrich; Teipel, Ulrich.
In: Propellants, Explosives, Pyrotechnics, Vol. 31, No. 5, 10.2006, p. 401-409.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Characterization of aluminum powders
T2 - II. Aluminum nanopowders passivated by non-inert coatings
AU - Gromov, Alexander
AU - Ilyin, Alexander
AU - Förter-Barth, Ulrich
AU - Teipel, Ulrich
PY - 2006/10
Y1 - 2006/10
N2 - Results of DTA-TG investigation and chemical analysis of electro-exploded aluminum nanopowders, passivated and/or coated with the non-inert reagents: nitrocellulose (NC), oleic acid (C17H33COOH) and stearic acid (C17H35COOH), which were suspended in kerosene and ethanol, amorphous boron, nickel, fluoropolymer, ethanol and air (for comparison), are discussed. Surface protection of aluminum nanopowders by coatings of different origin results in significant advantages in the energetic properties of the powders. Aluminum nanopowders with a protecting surface show increased stability to oxidation in nitrogen, air and in water during storage period. On the basis of the experimental results, a diagram of the formation and stabilization of the coatings is proposed. The kinetics of the interaction of aluminum nanopowders with nitrogen, air and water is discussed. Recommendations concerning the efficiency of non-inert reagent passivation are proposed on the basis of comprehensive analysis of the experimental data.
AB - Results of DTA-TG investigation and chemical analysis of electro-exploded aluminum nanopowders, passivated and/or coated with the non-inert reagents: nitrocellulose (NC), oleic acid (C17H33COOH) and stearic acid (C17H35COOH), which were suspended in kerosene and ethanol, amorphous boron, nickel, fluoropolymer, ethanol and air (for comparison), are discussed. Surface protection of aluminum nanopowders by coatings of different origin results in significant advantages in the energetic properties of the powders. Aluminum nanopowders with a protecting surface show increased stability to oxidation in nitrogen, air and in water during storage period. On the basis of the experimental results, a diagram of the formation and stabilization of the coatings is proposed. The kinetics of the interaction of aluminum nanopowders with nitrogen, air and water is discussed. Recommendations concerning the efficiency of non-inert reagent passivation are proposed on the basis of comprehensive analysis of the experimental data.
KW - Aluminum nanoparticle
KW - DTA-DSC-TG
KW - Non-inert coatings
KW - Passivation
KW - SEM
KW - TEM
UR - http://www.scopus.com/inward/record.url?scp=33750482544&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=33750482544&partnerID=8YFLogxK
U2 - 10.1002/prep.200600055
DO - 10.1002/prep.200600055
M3 - Article
AN - SCOPUS:33750482544
VL - 31
SP - 401
EP - 409
JO - Propellants, Explosives, Pyrotechnics
JF - Propellants, Explosives, Pyrotechnics
SN - 0721-3115
IS - 5
ER -