High-Accuracy X-Ray Diffraction Analysis of Phase Evolution Sequence During Devitrification of Cu50Zr50 Metallic Glass
dc.contributor.author | Kalay, I. | |
dc.contributor.author | Napolitano, Ralph | |
dc.contributor.author | Kramer, M. J. | |
dc.contributor.author | Napolitano, Ralph | |
dc.contributor.department | Materials Science and Engineering | |
dc.date | 2018-02-14T21:16:20.000 | |
dc.date.accessioned | 2020-06-30T06:07:03Z | |
dc.date.available | 2020-06-30T06:07:03Z | |
dc.date.copyright | Fri Jan 01 00:00:00 UTC 2010 | |
dc.date.embargo | 2013-11-12 | |
dc.date.issued | 2010-11-24 | |
dc.description.abstract | <p>Real-time high-energy X-ray diffraction (HEXRD) was used to investigate the crystallization kinetics and phase selection sequence for constant-heating-rate devitrification of fully amorphous Cu<sub>50</sub>Zr<sub>50</sub>, using heating rates from 10 K/min to 60 K/min (10 °C/min to 60 °C/min). <em>In situ</em> HEXRD patterns were obtained by the constant-rate heating of melt-spun ribbons under synchrotron radiation. High-accuracy phase identification and quantitative assessment of phase fraction evolution though the duration of the observed transformations were performed using a Rietveld refinement method. Results for 10 K/min (10 °C/min) heating show the apparent simultaneous formation of three phases, orthorhombic Cu<sub>10</sub>Zr<sub>7</sub>, tetragonal CuZr<sub>2</sub> (C11<sub>b</sub>), and cubic CuZr (B2), at 706 K (433 °C), followed immediately by the dissolution of the CuZr (B2) phase upon continued heating to 789 K (516 °C). Continued heating results in reprecipitation of the CuZr (B2) phase at 1002 K (729 °C), with the material transforming completely to CuZr (B2) by 1045 K (772 °C). The Cu<sub>5</sub>Zr<sub>8</sub> phase, previously reported to be a devitrification product in C<sub>50</sub>Zr<sub>50</sub>, was not observed in the present study.</p> | |
dc.description.comments | <p>This article is from <em>Metallurgical and Materials Transactions A</em> 42 (2010): 1122, <a href="http://dx.doi.org/10.1007/s11661-010-0531-9" target="_blank">doi:10.1007/s11661-010-0531-9</a>. Posted with permission.</p> | |
dc.format.mimetype | application/pdf | |
dc.identifier | archive/lib.dr.iastate.edu/mse_pubs/169/ | |
dc.identifier.articleid | 1163 | |
dc.identifier.contextkey | 6198099 | |
dc.identifier.s3bucket | isulib-bepress-aws-west | |
dc.identifier.submissionpath | mse_pubs/169 | |
dc.identifier.uri | https://dr.lib.iastate.edu/handle/20.500.12876/55497 | |
dc.language.iso | en | |
dc.source.bitstream | archive/lib.dr.iastate.edu/mse_pubs/169/2010_Napolitano_HighAccuracy.pdf|||Fri Jan 14 21:07:34 UTC 2022 | |
dc.source.uri | 10.1007/s11661-010-0531-9 | |
dc.subject.disciplines | Ceramic Materials | |
dc.subject.disciplines | Metallurgy | |
dc.subject.keywords | Ames Laboratory | |
dc.title | High-Accuracy X-Ray Diffraction Analysis of Phase Evolution Sequence During Devitrification of Cu50Zr50 Metallic Glass | |
dc.type | article | |
dc.type.genre | article | |
dspace.entity.type | Publication | |
relation.isAuthorOfPublication | 5d15ca50-0822-4c99-a260-7004cd21408d | |
relation.isOrgUnitOfPublication | bf9f7e3e-25bd-44d3-b49c-ed98372dee5e |
File
Original bundle
1 - 1 of 1
No Thumbnail Available
- Name:
- 2010_Napolitano_HighAccuracy.pdf
- Size:
- 787.83 KB
- Format:
- Adobe Portable Document Format
- Description: