High-temperature phase equilibria of Cu–O–Al2O3 system in air

N. Hellstén; J. Hamuyuni; P. Taskinen

doi:10.1080/00084433.2016.1151601

High-temperature phase equilibria of Cu–O–Al₂O₃ system in air

N. Hellstén^*
, J. Hamuyuni
, P. Taskinen

^*Corresponding author for this work

Department of Chemical and Metallurgical Engineering

Research output: Contribution to journal › Article › Scientific › peer-review

7 Citations (Scopus)

Abstract

Phase equilibria of Cu–O–Al₂O₃ system were experimentally investigated in a temperature range of 1100–1400°C under 0.21 atm oxygen pressure. The experiments were conducted employing a high-temperature equilibration and quenching method. Microstructures of the quenched samples were observed with scanning electron microscope. The phase compositions in the samples were analysed with electron probe microanalysis technique. Measured solubility of Al₂O₃ into the molten oxide ranged from 0.0 to 1.8 wt-%. A small solubility of Cu₂O into Al₂O₃ was also observed ranging from 1.20 to 1.58 wt-%.

Original language	English
Pages (from-to)	226-233
Number of pages	8
Journal	Canadian Metallurgical Quarterly
Volume	55
Issue number	2
DOIs	https://doi.org/10.1080/00084433.2016.1151601
Publication status	Published - 2 Apr 2016
MoE publication type	A1 Journal article-refereed

Funding

The authors would like to thank Outotec Oy, Boliden Harjavalta, Tekes, Fimecc Oy and SIMP program for the financial support. Finnish Geological Survey and Mr Lassi Pakkanen are acknowledged for the EPMA work carried out.

Keywords

Phase assemblage
Quenching method
Slag

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10.1080/00084433.2016.1151601

Cite this

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title = "High-temperature phase equilibria of Cu–O–Al2O3 system in air",

abstract = "Phase equilibria of Cu–O–Al2O3 system were experimentally investigated in a temperature range of 1100–1400°C under 0.21 atm oxygen pressure. The experiments were conducted employing a high-temperature equilibration and quenching method. Microstructures of the quenched samples were observed with scanning electron microscope. The phase compositions in the samples were analysed with electron probe microanalysis technique. Measured solubility of Al2O3 into the molten oxide ranged from 0.0 to 1.8 wt-\%. A small solubility of Cu2O into Al2O3 was also observed ranging from 1.20 to 1.58 wt-\%.",

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T1 - High-temperature phase equilibria of Cu–O–Al2O3 system in air

AU - Hellstén, N.

AU - Hamuyuni, J.

AU - Taskinen, P.

PY - 2016/4/2

Y1 - 2016/4/2

N2 - Phase equilibria of Cu–O–Al2O3 system were experimentally investigated in a temperature range of 1100–1400°C under 0.21 atm oxygen pressure. The experiments were conducted employing a high-temperature equilibration and quenching method. Microstructures of the quenched samples were observed with scanning electron microscope. The phase compositions in the samples were analysed with electron probe microanalysis technique. Measured solubility of Al2O3 into the molten oxide ranged from 0.0 to 1.8 wt-%. A small solubility of Cu2O into Al2O3 was also observed ranging from 1.20 to 1.58 wt-%.

AB - Phase equilibria of Cu–O–Al2O3 system were experimentally investigated in a temperature range of 1100–1400°C under 0.21 atm oxygen pressure. The experiments were conducted employing a high-temperature equilibration and quenching method. Microstructures of the quenched samples were observed with scanning electron microscope. The phase compositions in the samples were analysed with electron probe microanalysis technique. Measured solubility of Al2O3 into the molten oxide ranged from 0.0 to 1.8 wt-%. A small solubility of Cu2O into Al2O3 was also observed ranging from 1.20 to 1.58 wt-%.

KW - Phase assemblage

KW - Quenching method

KW - Slag

UR - https://www.scopus.com/pages/publications/84978402444

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DO - 10.1080/00084433.2016.1151601

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EP - 233

JO - Canadian Metallurgical Quarterly

JF - Canadian Metallurgical Quarterly

IS - 2

ER -

High-temperature phase equilibria of Cu–O–Al₂O₃ system in air

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Cite this

High-temperature phase equilibria of Cu–O–Al2O3 system in air

Abstract

Funding

Keywords

Access to Document

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Fingerprint

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Raw Materials Research Infrastructure

Cite this

High-temperature phase equilibria of Cu–O–Al₂O₃ system in air