Skip to main content Accessibility help
×
Home
Hostname: page-component-544b6db54f-8tjh8 Total loading time: 0.26 Render date: 2021-10-20T13:16:37.346Z Has data issue: true Feature Flags: { "shouldUseShareProductTool": true, "shouldUseHypothesis": true, "isUnsiloEnabled": true, "metricsAbstractViews": false, "figures": true, "newCiteModal": false, "newCitedByModal": true, "newEcommerce": true, "newUsageEvents": true }

Directional Solidification of Mo5Si3-MoSi2 Eutectic

Published online by Cambridge University Press:  10 February 2011

S. M. Borowicz
Affiliation:
Materials Engineering Program, Auburn University, Auburn, AL 36849
L. Heatherly
Affiliation:
Metals and Ceramics Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831
R. H. Zee
Affiliation:
Materials Engineering Program, Auburn University, Auburn, AL 36849
E. P. George
Affiliation:
Metals and Ceramics Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831
Get access

Abstract

The Mo-Si phase diagram exhibits a Mo5Si3-MoSi2 eutectic at the 54% Si composition. Since the terminal phases have comparable melting points and are equidistant from the eutectic composition, there is the possibility of obtaining lamellar microstructures in this system. In addition, if the alloys are directionally solidified, there is the further possibility of obtaining aligned lamellae. In this study, a high temperature (xenon-arc-lamp) optical floating zone furnace is utilized to directionally solidify Mo-Si alloys of the eutectic composition. Growth conditions are systematically varied to investigate their effects on the solidification microstructure. Growth rates and rotation speeds are identified that result in lamellar microstructures.

Type
Research Article
Copyright
Copyright © Materials Research Society 1999

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

1. Massalski, T.B., Binary Alloy Phase Diagrams, American Society For Metals, 1986.Google Scholar
2. Anton, D.L., Shah, D.M., Duhl, D.N., and Giamei, A.F., “Selecting High-Temperature Structural Intermetallic Compounds:The Engineering Approach,” J.Metals, Sept. (1989), 1217.CrossRefGoogle Scholar
3. Petrovich, J.J., “MoSi2 based High-Temperature Structural Silicides,” MRS Bulletin, July (1993), 3540.CrossRefGoogle Scholar
4. Pearson, W.B., The Crystal Chemistry and Physics of Metals and Alloys, Pergamon, Oxford, 1967.Google Scholar
5. Kurz, W. and Fisher, D.J., Fundamentals of Solidification, Trans Tech Publ. (1989) 95.Google Scholar
6. Elliott, R., Eutectic Solidification Processing, Buttersworth Publ., 1983.Google Scholar
7. Ito, K., Yano, T., Nakamoto, T., Inui, H. and Yamaguchi, M., Intermetallics 4, S119 (1996).CrossRefGoogle Scholar
8. Mason, D.P, Van Aken, D.C. and Mansfield, J.R, Acta metall. mater., Vol.43 No.3, (1995) 1189.CrossRefGoogle Scholar
9. Mason, D.P and Van Aken, D.C., Acta metall. mater., Vol.43, No. 3, (1995) 1201.CrossRefGoogle Scholar
10. Maloy, S.A., Xiao, S.Q. and Heuer, A.H., J. Mater. Res., 8 (1993) 1079.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.

Directional Solidification of Mo5Si3-MoSi2 Eutectic
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.

Directional Solidification of Mo5Si3-MoSi2 Eutectic
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.

Directional Solidification of Mo5Si3-MoSi2 Eutectic
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? *