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The effects of a magnetic field on the crystallization of a fluorozirconate glass

Published online by Cambridge University Press:  31 January 2011

Dennis S. Tucker ,
Michael R. Lapointe  and
Zhiyong Jia
Dennis S. Tucker*
Affiliation:
Marshall Space Flight Center, Marshall Space Flight Center, Alabama 35812
Michael R. Lapointe
Affiliation:
Marshall Space Flight Center, Marshall Space Flight Center, Alabama 35812
Zhiyong Jia
Affiliation:
Materials and Information Technology (MINT) Center, University of Alabama, Tuscaloosa, Alabama 35487
*
a)Address all correspondence to this author. e-mail: dr.dennis.tucker@nasa.gov
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Abstract

An axial magnetic field of 0.1 T was applied to ZrF4–BaF2–LaF3–AlF3NaF fibers during heating to the glass crystallization temperature. Scanning electron microscopy and x-ray diffraction were used to identify crystal phases. It was shown that fibers exposed to the magnetic field did not crystallize, while fibers not exposed to the field did crystallize. A hypothesis based on magnetic work was proposed to explain the results, and was tested by measuring the magnetic susceptibilities of the glass and crystal.

Keywords

AmorphousCrystal growthMagnetic properties

Information

Type
Rapid Communications
Information
Journal of Materials Research , Volume 22 , Issue 6 , June 2007 , pp. 1431 - 1434
Copyright
Copyright © Materials Research Society2007

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References

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