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Material Characterization of Plasma-Treated Aluminum Particles via Different Gases

Published online by Cambridge University Press:  12 March 2019

Chi-Chin Wu Open the ORCID record for Chi-Chin Wu [Opens in a new window] ,
Kelsea K. Miller ,
Scott D. Walck  and
Michelle Pantoya
Chi-Chin Wu*
Affiliation:
Energetic Materials Science Branch, Lethality Division, Weapons and Materials Research Directorate, US Army Research Laboratory, Aberdeen Proving Ground, Maryland21005
Kelsea K. Miller
Affiliation:
Department of Mechanical Engineering, Texas Technical University, Lubbock, Texas79409
Scott D. Walck
Affiliation:
Survice Engineering Co., Materials and Manufacturing Science Division, Weapons and Materials Research Directorate, US Army Research Laboratory, Aberdeen Proving Ground, Maryland21005
Michelle Pantoya
Affiliation:
Department of Mechanical Engineering, Texas Technical University, Lubbock, Texas79409
*
*(Email: chi-chin.wu.civ@mail.mil)
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Abstract

This work describes exploration of mitigating the parasitic amorphous alumina (Al2O3) shell of aluminum nanoparticles (n-Al) and modifying the surface using different plasmas, leading to n-Al with thinner shell and different coatings including carbons and oxidizing salt called aluminum iodate hexahydrate (AIH), respectively. The approach exploits a prototype atmospheric non-thermal plasma reactor with dielectric barrier discharge (DBD) configuration for nanoparticle surface modifications using n-Al of 80 nm average diameter as an example. Preliminary results indicate that the amorphous Al2O3 shell surrounding the active aluminum core can be mitigated with inert plasmas by as much as 40% using either helium (He) or argon (Ar). The particle surface becomes carbon-rich with carbon monoxide (CO) / He plasmas. By immersing the plasma-treated n-Al in an iodic acid (HIO3) solution, AIH crystals can be formed on the n-Al surface. Transmission electron microscopy (TEM) is used as a major tool to study the details of the modified surface morphologies, diffraction patterns, and chemical composition of the modified n-Al. The results demonstrate effective surface passivation of n-Al via atmospheric plasma techniques.

Keywords

transmission electron microscopy (TEM)Alenergetic materialnanostructure
Type
Articles
Information
MRS Advances , Volume 4 , Issue 27: Processing and Manufacturing , 2019 , pp. 1589 - 1595
Copyright
Copyright © Materials Research Society 2019 

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References

REFERENCES

Farley, C. W., Pantoya, M. L., Losada, M., Chaudhuri, S., J. Chem. Phys. 139, 074701 (2013).CrossRefGoogle Scholar
Pesiri, D., Aumann, C., Bilger, L., Booth, D., Carpenter, R., Dye, R., J. Pyrotech. 19, 19-32 (2004).Google Scholar
Fernández, A., Sánchez-López, J. C., Caballero, A., Martin, J. M., Vacher, B., Ponsonnet, L., J. Microscopy 191, 212-220 (1998).CrossRefGoogle Scholar
Smith, D. K., Unruh, D. K., Wu, C.-C., Pantoya, M. L., J. Phys. Chem. C 121, 23184-23191 (2017).CrossRefGoogle Scholar
Gottfried, J. L., Smith, D. K., Wu, C.-C., Pantoya, M. L., Sci. Rep. 8, 8036 (2018).CrossRefGoogle Scholar
Shahravan, A., Desai, T., Matsoukas, T., ACS Appl. Mater. Interfaces 6, 7942-7947 (2014).CrossRefGoogle Scholar
Geiger, R. and Staack, D., J. Phys. D: Appl. Phys. 44, 274005 (13 pp) (2011).CrossRefGoogle Scholar