Nowak, Benedikt and Holland-Moritz, Dirk and Yang, Fan and Evenson, Zachary and Meyer, Andreas (2018) Mixing effects in a ternary Hf-Zr-Ni metallic melt. Physical Review B, 97, 094202. American Physical Society. doi: 10.1103/PhysRevB.97.094202. ISSN 2469-9950.
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Official URL: https://journals.aps.org/prb/abstract/10.1103/PhysRevB.97.094202
Abstract
We study the effect of the substitution of Zr by Hf on the dynamical behavior in the Zr36Ni64 melt. A reduced measured self-diffusion coefficient and a higher measured melt viscosity for an increased amount of Hf were observed. The ternary Hf10Zr25Ni65 melt, which exhibits a pronounced deviation from Arrhenius behavior over a studied temperature range of 550 K, can be accurately described by the scaling law of mode-coupling theory (MCT) with almost equal parameters for the self-diffusion and the viscosity. Although we only substitute alloy components with a nearly equal atomic size and the measured overall packing fraction remains almost unchanged, the dynamics in Hf10Zr25Ni65 are slower compared to Zr36Ni64. This corresponds also to a higher critical temperature Tc and might be induced by different chemical interactions in the melts. The increased Tc results in a significantly smaller difference between liquidus and critical temperature ΔTLC=TL−Tc for the ternary melt in comparison with Zr36Ni64, which may favor the glass formation in the Hf10Zr25Ni65 melt.
Item URL in elib: | https://elib.dlr.de/119527/ | ||||||||||||||||||
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Document Type: | Article | ||||||||||||||||||
Title: | Mixing effects in a ternary Hf-Zr-Ni metallic melt | ||||||||||||||||||
Authors: |
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Date: | 8 March 2018 | ||||||||||||||||||
Journal or Publication Title: | Physical Review B | ||||||||||||||||||
Refereed publication: | Yes | ||||||||||||||||||
Open Access: | No | ||||||||||||||||||
Gold Open Access: | No | ||||||||||||||||||
In SCOPUS: | Yes | ||||||||||||||||||
In ISI Web of Science: | Yes | ||||||||||||||||||
Volume: | 97 | ||||||||||||||||||
DOI: | 10.1103/PhysRevB.97.094202 | ||||||||||||||||||
Page Range: | 094202 | ||||||||||||||||||
Publisher: | American Physical Society | ||||||||||||||||||
ISSN: | 2469-9950 | ||||||||||||||||||
Status: | Published | ||||||||||||||||||
Keywords: | Transport properties, amorphous materials, Quasi-elastic neutron scattering | ||||||||||||||||||
HGF - Research field: | Aeronautics, Space and Transport | ||||||||||||||||||
HGF - Program: | Space | ||||||||||||||||||
HGF - Program Themes: | Research under Space Conditions | ||||||||||||||||||
DLR - Research area: | Raumfahrt | ||||||||||||||||||
DLR - Program: | R FR - Research under Space Conditions | ||||||||||||||||||
DLR - Research theme (Project): | R - Material Design and New Materials | ||||||||||||||||||
Location: | Köln-Porz | ||||||||||||||||||
Institutes and Institutions: | Institute of Materials Physics in Space | ||||||||||||||||||
Deposited By: | Nowak, Benedikt | ||||||||||||||||||
Deposited On: | 28 Mar 2018 10:32 | ||||||||||||||||||
Last Modified: | 19 Oct 2021 09:30 |
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