Na, Jong Hyun and Demetriou, Marios D. and Johnson, William L. (2011) Fragility of iron-based glasses. Applied Physics Letters, 99 (16). Art. No. 161902. ISSN 0003-6951. https://resolver.caltech.edu/CaltechAUTHORS:20111205-144418165
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Abstract
The viscosity of various iron-based bulk-glass-forming liquids is measured around the glass transition, and the associated fragility is calculated. Fragility is found to vary broadly between compositions, from a low value of ~43, which indicates fairly “strong” liquid behavior, to ~65, well within the region of “fragile” behavior. Despite a strong covalent bonding identified in the structure of this class of metal/metalloid glasses, their liquid fragility can be remarkably high, exceeding even the very fragile palladium and platinum bulk-glass formers. An inverse correlation between glass-forming ability and fragility is identified, suggesting that iron-based glasses are effectively “kinetically” stabilized.
| Item Type: | Article | |||||||||
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| Additional Information: | © 2011 American Institute of Physics. Received 20 June 2011; accepted 12 September 2011; published online 17 October 2011. This work was supported by the National Research Foundation of Korea Grant funded by the Korean Government [NRF-2009-352-D00125] and by the MRSEC Program of the National Science Foundation [DMR-0520565]. | |||||||||
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| Subject Keywords: | bonds (chemical); glass transition; iron compounds; metallic glasses; palladium; platinum; viscosity; vitrification | |||||||||
| Issue or Number: | 16 | |||||||||
| Classification Code: | PACS: 64.70.pe; 61.43.Fs; 66.20.-d | |||||||||
| Record Number: | CaltechAUTHORS:20111205-144418165 | |||||||||
| Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:20111205-144418165 | |||||||||
| Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | |||||||||
| ID Code: | 28302 | |||||||||
| Collection: | CaltechAUTHORS | |||||||||
| Deposited By: | Tony Diaz | |||||||||
| Deposited On: | 06 Dec 2011 23:08 | |||||||||
| Last Modified: | 03 Oct 2019 03:31 |
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