Synthesis of alumina-nitride nanocomposites by successive reduction-nitridation in mechanochemically activated reactions

T. Puclin; W. A. Kaczmarek

doi:10.1016/S0925-8388(97)00429-5

Synthesis of alumina-nitride nanocomposites by successive reduction-nitridation in mechanochemically activated reactions

T. Puclin^*, W. A. Kaczmarek

^*Corresponding author for this work

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

22 Citations (Scopus)

Abstract

According to our recent study, zircon (ZrSiO₄) mineral can be reduced to a zirconium silicide-alumina mixture by mechanochemically induced replacement reaction with aluminium. Further milling in nitrogen atmosphere produced zirconium nitride-alumina-silicide ceramic composite. This two step procedure can be extended for application to a variety of oxide starting materials. In this paper we present nitridation results for oxides of the group IV metals (Ti, Zr, and Hf). These elements were successfully nitrided to form compounds with the approximate composition MN_0.9 (M=metal). Intermediate phases including ternary alloys and sub-oxides were detected during the milling process. Resulting nitride-oxide ceramic compositions are compared to those predicted by thermodynamic considerations.

Original language	English
Pages (from-to)	283-292
Number of pages	10
Journal	Journal of Alloys and Compounds
Volume	266
Issue number	1-2
DOIs	https://doi.org/10.1016/S0925-8388(97)00429-5
Publication status	Published - 20 Feb 1998

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title = "Synthesis of alumina-nitride nanocomposites by successive reduction-nitridation in mechanochemically activated reactions",

abstract = "According to our recent study, zircon (ZrSiO4) mineral can be reduced to a zirconium silicide-alumina mixture by mechanochemically induced replacement reaction with aluminium. Further milling in nitrogen atmosphere produced zirconium nitride-alumina-silicide ceramic composite. This two step procedure can be extended for application to a variety of oxide starting materials. In this paper we present nitridation results for oxides of the group IV metals (Ti, Zr, and Hf). These elements were successfully nitrided to form compounds with the approximate composition MN0.9 (M=metal). Intermediate phases including ternary alloys and sub-oxides were detected during the milling process. Resulting nitride-oxide ceramic compositions are compared to those predicted by thermodynamic considerations.",

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AB - According to our recent study, zircon (ZrSiO4) mineral can be reduced to a zirconium silicide-alumina mixture by mechanochemically induced replacement reaction with aluminium. Further milling in nitrogen atmosphere produced zirconium nitride-alumina-silicide ceramic composite. This two step procedure can be extended for application to a variety of oxide starting materials. In this paper we present nitridation results for oxides of the group IV metals (Ti, Zr, and Hf). These elements were successfully nitrided to form compounds with the approximate composition MN0.9 (M=metal). Intermediate phases including ternary alloys and sub-oxides were detected during the milling process. Resulting nitride-oxide ceramic compositions are compared to those predicted by thermodynamic considerations.

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KW - Mechanochemistry

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KW - Reduction

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Synthesis of alumina-nitride nanocomposites by successive reduction-nitridation in mechanochemically activated reactions

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