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Density and viscosity of liquid ZrO2 measured by aerodynamic levitation technique

Kondo, Toshiki and Muta, Hiroaki and Kurosaki, Ken and Kargl, F and Yamaji, Akifumi and Furuya, Masahiro and Ohishi, Yuji (2019) Density and viscosity of liquid ZrO2 measured by aerodynamic levitation technique. Heliyon, 5, e02049. Elsevier. doi: 10.1016/j.heliyon.2019.e02049. ISSN 2405-8440.

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Official URL: https://www.sciencedirect.com/science/article/pii/S2405844019357093

Abstract

Liquid ZrO2 is one of the most important materials involved in severe accident analysis of a light-water reactor. Despite its importance, the physical properties of liquid ZrO2 are scarcely reported. In particular, there are no experimental reports on the viscosity of liquid ZrO2. This is mainly due to the technical difficulties involved in the measurement of thermo-physical properties of liquid ZrO2, which has an extremely high melting point. To address this problem, an aerodynamic levitation technique was used in this study. The density of liquid ZrO2 was calculated from its mass and volume, estimated based on the recorded image of the sample. The viscosity was measured by a droplet oscillation technique. The density and viscosity of liquid ZrO2 at temperatures ranging from 2753 K to 3273 K, and 3170 K-3471 K, respectively, were successfully evaluated. The density of liquid ZrO2 was found to be 4.7 gcm-3 at its melting point of 2988 K and decreased linearly with increasing temperature, and the viscosity of liquid ZrO2 was 13 mPa at its melting point.

Item URL in elib:https://elib.dlr.de/127309/
Document Type:Article
Title:Density and viscosity of liquid ZrO2 measured by aerodynamic levitation technique
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Kondo, ToshikiGraduate School of Engineering, Osaka University, JapanUNSPECIFIED
Muta, HiroakiGraduate School of Engineering, Osaka University, JapanUNSPECIFIED
Kurosaki, KenGraduate School of Engineering, Osaka University, JapanUNSPECIFIED
Kargl, Fflorian.kargl (at) dlr.deUNSPECIFIED
Yamaji, AkifumiGraduate School of Advanced Science and Engineering, Waseda University, JapanUNSPECIFIED
Furuya, MasahiroCentral Research Institute of Electric Power Industry, JapanUNSPECIFIED
Ohishi, YujiGraduate School of Engineering, Osaka University, JapanUNSPECIFIED
Date:July 2019
Journal or Publication Title:Heliyon
Refereed publication:Yes
Open Access:Yes
Gold Open Access:Yes
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:5
DOI :10.1016/j.heliyon.2019.e02049
Page Range:e02049
Publisher:Elsevier
ISSN:2405-8440
Status:Published
Keywords:Materials science, ZrO2, Aerodynamic Levitation, Viscosity, Density, Liquid Phase, Severe accident
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 > Scientific Experiments MP
Deposited By: Kargl, Dr Florian
Deposited On:05 Aug 2019 08:06
Last Modified:14 Dec 2019 04:25

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