Carbothermic reduction of a columbite concentrate to produce cemented carbides and metal-matrix composites

A. Chrysanthou; D. Macfarlane; O.S. Chinyamakobvu

doi:10.1016/0925-8388(94)90013-2

Carbothermic reduction of a columbite concentrate to produce cemented carbides and metal-matrix composites

A. Chrysanthou
, D. Macfarlane
, O.S. Chinyamakobvu

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

6 Citations (Scopus)

Abstract

The study of the carbothermic reduction of a columbite concentrate was carried out to form cemented carbides based on particles of (Nb, Ta)C solid solution bonded together by ferromanganese. The effect of various parameters on the kinetics of reaction were examined. Complete wetting of the carbide phase by the metal was achieved. Metal-matrix composites (MMC) based on (Nb, Ta)C and cast iron were also obtained and the morphology is described. Addition of Ni to the MMC had a profound effect on the microstructure and carbide distribution in the matrix

Original language	English
Pages (from-to)	77-81
Number of pages	5
Journal	Journal of Alloys and Compounds
Volume	206
Issue number	1
DOIs	https://doi.org/10.1016/0925-8388(94)90013-2
Publication status	Published - 1 Apr 1994

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abstract = "The study of the carbothermic reduction of a columbite concentrate was carried out to form cemented carbides based on particles of (Nb, Ta)C solid solution bonded together by ferromanganese. The effect of various parameters on the kinetics of reaction were examined. Complete wetting of the carbide phase by the metal was achieved. Metal-matrix composites (MMC) based on (Nb, Ta)C and cast iron were also obtained and the morphology is described. Addition of Ni to the MMC had a profound effect on the microstructure and carbide distribution in the matrix",

author = "A. Chrysanthou and D. Macfarlane and O.S. Chinyamakobvu",

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AU - Chrysanthou, A.

AU - Macfarlane, D.

AU - Chinyamakobvu, O.S.

PY - 1994/4/1

Y1 - 1994/4/1

N2 - The study of the carbothermic reduction of a columbite concentrate was carried out to form cemented carbides based on particles of (Nb, Ta)C solid solution bonded together by ferromanganese. The effect of various parameters on the kinetics of reaction were examined. Complete wetting of the carbide phase by the metal was achieved. Metal-matrix composites (MMC) based on (Nb, Ta)C and cast iron were also obtained and the morphology is described. Addition of Ni to the MMC had a profound effect on the microstructure and carbide distribution in the matrix

AB - The study of the carbothermic reduction of a columbite concentrate was carried out to form cemented carbides based on particles of (Nb, Ta)C solid solution bonded together by ferromanganese. The effect of various parameters on the kinetics of reaction were examined. Complete wetting of the carbide phase by the metal was achieved. Metal-matrix composites (MMC) based on (Nb, Ta)C and cast iron were also obtained and the morphology is described. Addition of Ni to the MMC had a profound effect on the microstructure and carbide distribution in the matrix

UR - https://www.scopus.com/pages/publications/0028413688

U2 - 10.1016/0925-8388(94)90013-2

DO - 10.1016/0925-8388(94)90013-2

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AN - SCOPUS:0028413688

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EP - 81

JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

IS - 1

ER -

Carbothermic reduction of a columbite concentrate to produce cemented carbides and metal-matrix composites

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