Shock compression induced devitrification of amorphous Ce3Al melt-spun ribbons

Shock compression experiments were performed on amorphous Ce3Al melt-spun ribbons using the 50 J laser shock loading system at the Omega laser facility. A multi-layered sample of 2mm total thickness with 1 mm × 1.5 mm width and 40 µm thick ribbons sandwiched with 6 µm epoxy was used as the target in...

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Bibliographic Details
Main Authors: Bryant, Alex W., Wehrenberg, Chris, Alamgir, Faisal, Lai, Samson Y., Remington, Bruce, Thadhani, Naresh N.
Format: Conference Proceeding
Language:English
Subjects:
Attenuation
Crystals
Devitrification
Intermetallic phases
Melt spinning
Multilayers
Shock loading
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Summary:Shock compression experiments were performed on amorphous Ce3Al melt-spun ribbons using the 50 J laser shock loading system at the Omega laser facility. A multi-layered sample of 2mm total thickness with 1 mm × 1.5 mm width and 40 µm thick ribbons sandwiched with 6 µm epoxy was used as the target in order to study the effects of varying pressures (due to attenuation) on the transformation behavior. The shock-induced changes were characterized post-mortem via synchrotron XRD analysis. Comparisons of the initial amorphous, thermally devitrified (at 500°C), and shock compressed samples indicate devitrification under high pressure shock compression into the thermodynamically stable hexagonal α-Ce3Al intermetallic phase, similar to the thermally devitrified samples.
ISSN:0094-243X
1551-7616
DOI:10.1063/1.4971715