Density of Liquid Niobium and Tungsten and the Estimation of Critical Point Data

Research output: Contribution to journalArticleResearchpeer-review

Abstract

Density as a function of temperature was measured for the liquid transition metals niobium and tungsten by means of ohmic pulse-heating. The generated data are extensively compared to the existing literature data, and the uncertainty is critically assessed according to the guide to the expression of uncertainty in measurement (GUM). Starting from the obtained liquid-phase density regression, the phase diagram, and the critical point, i.e., critical temperature Tc and critical density ρc of niobium and tungsten are estimated. The so-obtained critical point for these two high-melting metals is compared to the data available in the existing literature.
LanguageEnglish
Pages3646-3653
Number of pages8
JournalMetallurgical and materials transactions / A
Volume2019
Issue number50
DOIs
StatusPublished - 1 Jul 2019

Fingerprint

Niobium
Density of liquids
Tungsten
niobium
critical point
tungsten
Metal melting
Liquids
liquids
Phase diagrams
Transition metals
pulse heating
liquid metals
Heating
Temperature
regression analysis
critical temperature
liquid phases
transition metals
phase diagrams

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Mechanics of Materials
  • Metals and Alloys

Fields of Expertise

  • Advanced Materials Science

Cite this

Density of Liquid Niobium and Tungsten and the Estimation of Critical Point Data. / Leitner, M.; Pottlacher, G.

In: Metallurgical and materials transactions / A, Vol. 2019, No. 50, 01.07.2019, p. 3646-3653.

Research output: Contribution to journalArticleResearchpeer-review

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