Open AccessExperimental Study for Measuring Density of slag melts by An Established Archimedean Double-bob Method
Author(s) -
Arman,
Hiromichi Takebe
Publication year - 2019
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/619/1/012036
Subject(s) - reproducibility , slag (welding) , analytical chemistry (journal) , range (aeronautics) , materials science , atmospheric temperature range , work (physics) , thermodynamics , silicone , mineralogy , chemistry , metallurgy , composite material , chromatography , physics
The apparatus of Archimedean double-bob method for practicing accurate was established for density measurements of slag melts. The accuracy of density measurements at room temperature to establish measurements was determined in the following ways. Firstly, the densities of water were measured at 25, 30, 35, and 40 °C. Secondly, the densities of silicone fluids with the viscosities 0.01, 0.999, 4.850, and 29.44 Pa·s were measured at 25 °C. The measured densities have good agreement with the data of water standards with a precision of 0.07% and silicone fluid standards with a precision of 0.16%. The densities of Na 2 O–SiO 2 slag melts with 60, 70 and 80 mol % SiO 2 were measured in the temperature range from 1350 to 1500 °C. The density decreases with increasing temperature and increases with increasing SiO 2 contents for all compositions. The reproducibility of this work is within the error estimation of density measurements. The density results of Na 2 O–SiO 2 melts with 60, 70 and 80 mol % at 1400 °C show that the measurements data are within 0.23 % of the density values.