Measurement of the activity of boron in liquid copper using a four-phase equilibrium technique

Jacob, K. T. ; Priya, Shashank ; Waseda, Yoshio (2000) Measurement of the activity of boron in liquid copper using a four-phase equilibrium technique Metallurgical and Materials Transactions A, 31 (10). pp. 2674-2678. ISSN 1073-5623

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Official URL: http://link.springer.com/article/10.1007%2Fs11661-...

Related URL: http://dx.doi.org/10.1007/s11661-000-0214-z

Abstract

The purpose of this article is to report measurements on dilute Cu-B alloys at 1723 K using a new four-phase equilibrium technique. The method can be considered as an extension of the conventional procedure involving metal-slag-gas equilibration, where the gas phase containing carbon monoxide is pre-equilibrated with graphite to define the carbon and oxygen chemical potentials. Under the reducing atmosphere, liquid diboron trioxide (B2O3) is partially reduced by graphite generating a liquid Cu-B alloy and carbon monoxide at controlled pressure. After quenching to room temperature, the concentration of B in the liquid copper is measured. The equilibrium boron concentration in copper is measured as a function of the partial pressure of carbon monoxide in the gas phase.

Item Type:Article
Source:Copyright of this article belongs to The Minerals, Metals & Materials Society.
ID Code:95008
Deposited On:11 Oct 2012 10:20
Last Modified:11 Oct 2012 10:20

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