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Measurement of the Activity of Boron in Liquid Copper using a Four-Phase Equilibrium Technique

Jacob, KT and Priya, S and Waseda, Y (2000) Measurement of the Activity of Boron in Liquid Copper using a Four-Phase Equilibrium Technique. In: Metallurgical and Materials Transactions A, 31 (10). pp. 2674-2678.

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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 $(B_2O_3)$ 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: Journal Article
Additional Information: Copyright of this article belongs to Minerals, Metals & Materials Society and ASM Int.
Department/Centre: Division of Mechanical Sciences > Materials Engineering (formerly Metallurgy)
Date Deposited: 19 Jul 2006
Last Modified: 27 Aug 2008 12:14
URI: http://eprints.iisc.ernet.in/id/eprint/7908

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