skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Pressure-induced polyamorphism in lanthanide-solute metallic glasses: Pressure-induced polyamorphism in lanthanide-solute metallic glasses

Authors:
 [1];  [2];  [1];  [3];  [4];  [5];  [5];  [1]
  1. Harbin Institute of Technology, Harbin 150080 P.R. China, Center for High Pressure Science Technology Advanced Research, Changchun 130015 P.R. China
  2. Harbin Institute of Technology, Harbin 150080 P.R. China
  3. School of Mechanical and Mining Engineering, The University of Queensland, Brisbane Queensland 4072 Australia
  4. X-ray Science Division, Advanced Photon Source, Argonne National Laboratory, Argonne Illinois 60439 USA, Center for Advanced Energy Studies, University of Idaho, Idaho Falls Idaho 83406 USA
  5. X-ray Science Division, Advanced Photon Source, Argonne National Laboratory, Argonne Illinois 60439 USA
Publication Date:
Sponsoring Org.:
USDOE
OSTI Identifier:
1401901
Grant/Contract Number:
AC02-06CH11357
Resource Type:
Journal Article: Publisher's Accepted Manuscript
Journal Name:
Physica Status Solidi rrl
Additional Journal Information:
Journal Volume: 11; Journal Issue: 6; Related Information: CHORUS Timestamp: 2017-10-20 17:59:06; Journal ID: ISSN 1862-6254
Publisher:
Wiley Blackwell (John Wiley & Sons)
Country of Publication:
Germany
Language:
English

Citation Formats

Li, Liangliang, Wang, Luhong, Li, Renfeng, Qu, Dongdong, Zhao, Haiyan, Chapman, Karena W., Chupas, Peter J., and Liu, Haozhe. Pressure-induced polyamorphism in lanthanide-solute metallic glasses: Pressure-induced polyamorphism in lanthanide-solute metallic glasses. Germany: N. p., 2017. Web. doi:10.1002/pssr.201700078.
Li, Liangliang, Wang, Luhong, Li, Renfeng, Qu, Dongdong, Zhao, Haiyan, Chapman, Karena W., Chupas, Peter J., & Liu, Haozhe. Pressure-induced polyamorphism in lanthanide-solute metallic glasses: Pressure-induced polyamorphism in lanthanide-solute metallic glasses. Germany. doi:10.1002/pssr.201700078.
Li, Liangliang, Wang, Luhong, Li, Renfeng, Qu, Dongdong, Zhao, Haiyan, Chapman, Karena W., Chupas, Peter J., and Liu, Haozhe. Thu . "Pressure-induced polyamorphism in lanthanide-solute metallic glasses: Pressure-induced polyamorphism in lanthanide-solute metallic glasses". Germany. doi:10.1002/pssr.201700078.
@article{osti_1401901,
title = {Pressure-induced polyamorphism in lanthanide-solute metallic glasses: Pressure-induced polyamorphism in lanthanide-solute metallic glasses},
author = {Li, Liangliang and Wang, Luhong and Li, Renfeng and Qu, Dongdong and Zhao, Haiyan and Chapman, Karena W. and Chupas, Peter J. and Liu, Haozhe},
abstractNote = {},
doi = {10.1002/pssr.201700078},
journal = {Physica Status Solidi rrl},
number = 6,
volume = 11,
place = {Germany},
year = {Thu Apr 27 00:00:00 EDT 2017},
month = {Thu Apr 27 00:00:00 EDT 2017}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record at 10.1002/pssr.201700078

Save / Share:
  • We utilized the pair distribution function method to characterize the pressure-induced polyamorphic transition in Ce60Al20Cu20 and Ce55Al45 metallic glass at room temperature. Using synchrotron high-energy x-ray diffraction we collected scattering information from a large Q-space coverage, which in turn gave a high resolution g(r) that provided accurate local structure information. We observed a sudden change in compressibility and the nearest neighbor distance at 3.50–6.32 GPa for Ce60Al20Cu20 and 2.20–6.89 GPa for Ce55Al45. The origin of the volume collapse seemed to be pressure-induced qualitative changes in bond shortening that corresponded to different coordination spheres. The polyamorphic transitions in these two systemsmore » from low-density glass (LDG) to high-density glass (HDG) are associated with local atomic rearrangements.« less
  • Using high-pressure synchrotron x-ray absorption spectroscopy, we observed the Ce 4f electron in Ce{sub 75}Al{sub 25} metallic glass transform from its ambient localized state to an itinerant state above 5 GPa. A parallel x-ray diffraction study revealed a volume collapse of about 8.6%, coinciding with 4f delocalization. The transition started from a low-density state below 1.5 GPa, went through continuous densification ending with a high-density state above 5 GPa. This new type of electronic polyamorphism in densely packed metallic glass is dictated by the Ce constituent, and is fundamentally distinct from the well-established structural polyamorphism in which densification is causedmore » by coordination change and atomic rearrangement.« less
  • Using high-pressure synchrotron x-ray absorption spectroscopy, we observed the Ce 4f electron in Ce{sub 75}Al{sub 25} metallic glass transform from its ambient localized state to an itinerant state above 5 GPa. A parallel x-ray diffraction study revealed a volume collapse of about 8.6%, coinciding with 4f delocalization. The transition started from a low-density state below 1.5 GPa, went through continuous densification ending with a high-density state above 5 GPa. This new type of electronic polyamorphism in densely packed metallic glass is dictated by the Ce constituent, and is fundamentally distinct from the well-established structural polyamorphism in which densification is causedmore » by coordination change and atomic rearrangement.« less
  • The Yb 62.5Zn 15Mg 17.5Cu 5 metallic glass is investigated using synchrotron x-ray total scattering method up to 38.4 GPa. The polyamorphic transformation from low density to high density with a transition region between 14.1 and 25.2 GPa is observed, accompanying with a volume collapse reflected by a discontinuousness of isothermal bulk modulus. This collapse is caused by that distortional icosahedron short range order precedes to perfect icosahedron, which might link to Yb 4f electron delocalization upon compression, and match the result of in situ electrical resistance measurement under high pressure conditions. Furthermore, this discovery in Yb-based metallic glass, combinedmore » with the previous reports on other metallic glass systems, demonstrates that pressure induced polyamorphism is the general behavior for typical lanthanide based metallic glasses.« less