Skip to main content Accessibility help
×
Home
Hostname: page-component-568f69f84b-n9pbb Total loading time: 0.34 Render date: 2021-09-22T09:39:00.109Z Has data issue: true Feature Flags: { "shouldUseShareProductTool": true, "shouldUseHypothesis": true, "isUnsiloEnabled": true, "metricsAbstractViews": false, "figures": true, "newCiteModal": false, "newCitedByModal": true, "newEcommerce": true, "newUsageEvents": true }

Structure and properties of Al–Mg mechanical alloys

Published online by Cambridge University Press:  31 January 2011

Mirko Schoenitz
Affiliation:
New Jersey Institute of Technology, Department of Mechanical Engineering, University Heights, Newark, New Jersey 07102
Edward L. Dreizin
Affiliation:
New Jersey Institute of Technology, Department of Mechanical Engineering, University Heights, Newark, New Jersey 07102
Get access

Abstract

Mechanically alloys in the Al–Mg binary system in the range of 5–50 at.% Mg were produced for prospective use as metallic additives for propellants and explosives. Structure and composition of the alloys were characterized by x-ray diffraction microscopy (XRD) and scanning electron microscopy. The mechanical alloys consisted of a supersaturated solid solution of Mg in the α aluminum phase, γ phase (Al12Mg17), and additional amorphous material. The strongest supersaturation of Mg in the α phase (20.8%) was observed for bulk Mg concentrations up to 40%. At 30% Mg, the γ phase formed in quantities detectable by XRD; it became the dominating phase for higher Mg concentrations. No β phase (Al3Mg2) was detected in the mechanical alloys. The observed Al solid solution generally had a lower Mg concentration than the bulk composition. Thermal stability and structural transitions were investigated by differential scanning calorimetry. Several exothermic transitions, attributed to the crystallization of β and γ phases were observed. The present work provides the experimental basis for the development of detailed combustion and ignition models for these novel energetic materials.

Type
Articles
Copyright
Copyright © Materials Research Society 2003

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

Chan, M.L., Reed, R., and Ciaramitaro, D.A., Prog. Astronautics Aeronautics 185, 185 (2000).Google Scholar
Gany, A. and Netzer, D.W., Int. J. Turbo Jet Engines 2, 157 (1985).CrossRefGoogle Scholar
Palaszewski, B. and Zakany, J.S., Metallized Gelled Propellants: Oxygen/RP-1/Aluminum Rocket Combustion Experiments, 31st Joint Propulsion Conference Proceedings, San Diego, CA, AIAA95-2435 (1995).Google Scholar
Dreizin, E.L., Prog. Energy Combust. Sci. 26, 57 (2000).CrossRefGoogle Scholar
Roberts, T.A., Burton, R.K., and Krier, H., Combust. Flame 92, 125 (1993).CrossRefGoogle Scholar
Shoshin, Y.L., Mudryy, R.S., and Dreizin, E.L., Combust. Flame 128, 259 (2002).CrossRefGoogle Scholar
Schoenitz, M., Dreizin, E.L., and Shtessel, E., J. Prop. Power (in press, April 2003).Google Scholar
Trunov, M.A. and Dreizin, E.L., Ignition of Metastable Metal Based High Energy Density Fuels. Submitted for presentation at the Ninth International Workshop on Combustion and Propulsion, La Spezia, Italy 14–18 September 2003.Google Scholar
Starink, M.J. and Zahra, A.M., Acta Mater. 46, 3381 (1998).CrossRefGoogle Scholar
Okamoto, H., J. Phase Equilibria 19, 598 (1998).CrossRefGoogle Scholar
Murray, J.L., Bull. Alloy Phase Diagrams 3, 60 (1982).CrossRefGoogle Scholar
Benjamin, J.S., Scientific American 234, 40 (1976).CrossRefGoogle Scholar
Benjamin, J.S., Metal Powder Report 45, 122 (1990).CrossRefGoogle Scholar
Suryanarayana, C., Prog. Mater. Sci. 46, 1 (2001).CrossRefGoogle Scholar
Calka, A., Kaczmarek, W., and Williams, J.S., J. Mater. Sci. 28, 15 (1993).CrossRefGoogle Scholar
Zhang, D.L., Massalski, T.B., and Paruchuri, M.R., Metall. Mater. Trans. 25A, 73 (1994).CrossRefGoogle Scholar
Williamson, G.K. and Hall, W.H., Acta Metall. 1, 22 (1953).CrossRefGoogle Scholar
Ellwood, C.E., J. Inst. Metals 80, 605 (1952).Google Scholar
Luo, H.L., Chao, C.C., and Duwez, P., Trans. Metall. Soc. AIME 230, 1488 (1964).Google Scholar
Johnson, N.L., Kotz, S., and Balakrishnan, N., Continuous Univariate Distributions, 2nd ed. (Wiley, New York, 1994).Google Scholar
Mittermeijer, E.J., J. Mater. Sci. 27, 3977 (1992).CrossRefGoogle Scholar
Starink, M.J. and Zahra, A.M., Philos. Mag. A 76, 701 (1997).CrossRefGoogle Scholar
Horita, Z., Smith, D.J., Furukawa, M., Nemoto, M., Valiev, R., and Langdon, T.G., Mater. Characterization 37, 285 (1996).CrossRefGoogle Scholar

Send article to Kindle

To send this article to your Kindle, first ensure no-reply@cambridge.org is added to your Approved Personal Document E-mail List under your Personal Document Settings on the Manage Your Content and Devices page of your Amazon account. Then enter the ‘name’ part of your Kindle email address below. Find out more about sending to your Kindle. Find out more about sending to your Kindle.

Note you can select to send to either the @free.kindle.com or @kindle.com variations. ‘@free.kindle.com’ emails are free but can only be sent to your device when it is connected to wi-fi. ‘@kindle.com’ emails can be delivered even when you are not connected to wi-fi, but note that service fees apply.

Find out more about the Kindle Personal Document Service.

Structure and properties of Al–Mg mechanical alloys
Available formats
×

Send article to Dropbox

To send this article to your Dropbox account, please select one or more formats and confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your <service> account. Find out more about sending content to Dropbox.

Structure and properties of Al–Mg mechanical alloys
Available formats
×

Send article to Google Drive

To send this article to your Google Drive account, please select one or more formats and confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your <service> account. Find out more about sending content to Google Drive.

Structure and properties of Al–Mg mechanical alloys
Available formats
×
×

Reply to: Submit a response

Please enter your response.

Your details

Please enter a valid email address.

Conflicting interests

Do you have any conflicting interests? *