Hostname: page-component-78c5997874-m6dg7 Total loading time: 0 Render date: 2024-11-10T20:48:41.977Z Has data issue: false hasContentIssue false
  • English
  • Français

Air-Stable Nanopowders of Mixed Reactive Metals as Fuel Additives

Published online by Cambridge University Press:  27 April 2015

Michael R. Weismiller ,
Zachary J. Huba ,
Emily L. Maling ,
Albert Epshteyn  and
Bradley A. Williams
Michael R. Weismiller*
Affiliation:
NRC Postdoctoral Associate, Chemistry Division, Naval Research Laboratory, Washington, DC 20375-5342
Zachary J. Huba
Affiliation:
NRC Postdoctoral Associate, Chemistry Division, Naval Research Laboratory, Washington, DC 20375-5342
Emily L. Maling
Affiliation:
NREIP Student Intern, Chemistry Division, Naval Research Laboratory, Washington, DC 20375-5342
Albert Epshteyn
Affiliation:
Chemistry Division, Naval Research Laboratory, Washington, DC 20375-5342
Bradley A. Williams
Affiliation:
Chemistry Division, Naval Research Laboratory, Washington, DC 20375-5342
*
*Corresponding Author: michael.weismiller.ctr@nrl.navy.mil
Get access

Abstract

Nano-sized metallic powders have advantages as fuels including faster, more complete combustion than micron-sized metal powder particles; however, the unpassivated nanoparticles of some metals of interest, such as Al, are pyrophoric and highly reactive, making them difficult to handle. Additionally, metal-hydrides are of great potential interest for a significant gravimetric energy increase without a penalty in the volumetric energy content, as the inclusion of hydrogen in the metallic matrix does not significantly decrease overall density of the material. Reactive metal amorphous powders produced by the sonochemical decomposition and dehydrogenation of an in situ-produced mixed borohydride-tetrahydroaluminate of titanium and containing hydrogen are examined in the current work and show exceptional air-stability and higher energy content than nano-Al. An aerosolized powder burner is used to investigate the combustion behavior of these powders mixed with gaseous fuels to quantify the energy density and reaction rate as compared to commercial aluminum powders in an effort to benchmark the performance of the sonochemically generated amorphous Ti-Al-B powder fuels.

Keywords

BAlTi
Type
Articles
Information
MRS Online Proceedings Library (OPL) , Volume 1758: Symposium VV – Recent Advances in Reactive Materials , 2015 , mrsf14-1758-vv08-02
Copyright
Copyright © Materials Research Society 2015 

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

Yeh, C. L. and Kuo, K. K., Prog. Energy Combust. Sci. 22(6), 511–541 (1996).CrossRefGoogle Scholar
Foelsche, R. O., Burton, R. L. and Krier, H., Combust. Flame 117 (1–2), 32–58 (1999).CrossRefGoogle Scholar
Epshteyn, A., Yonke, B. L., Miller, J. B., Rivera-Díaz, J. L. and Purdy, A. P., Chemistry of Materials 25(6), 818–824 (2013).CrossRefGoogle Scholar
Goroshin, S., Fomenko, I. and Lee, J. H. S., Symposium (International) on Combustion 26(2), 1961–1967 (1996).CrossRefGoogle Scholar
Soo, M., Julien, P., Goroshin, S., Bergthorson, J. M. and Frost, D. L., Proc. Combust. Inst. 34(2), 2213–2220 (2013).CrossRefGoogle Scholar
Ng, D. and Fralick, G., Review of Scientific Instruments 72(2), 1522–1530 (2001).CrossRefGoogle Scholar
Julien, P., Soo, M., Goroshin, S., Frost, D. L., Bergthorson, J. M., Glumac, N. and Zhang, F., Journal of Propulsion and Power 30(4), 1047–1054 (2014).CrossRefGoogle Scholar