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首页> 外文期刊>Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics >Synthesis of alumina-nitride nanocomposites by successive reduction-nitridation in mechanochemically activated reactions
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Synthesis of alumina-nitride nanocomposites by successive reduction-nitridation in mechanochemically activated reactions

机译：在机械化学活化反应中通过连续还原-氮化合成氧化铝-氮化物纳米复合材料

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摘要

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. (C) 1998 Elsevier Science S.A. [References: 64]
机译：根据我们最近的研究，可以通过机械化学诱导的铝置换反应将锆石（ZrSiO4）矿物还原为硅化锆-氧化铝混合物。在氮气气氛中进一步研磨，得到氮化锆-氧化铝-硅化物陶瓷复合材料。这两个步骤的过程可以扩展到适用于各种氧化物原料。在本文中，我们介绍了IV类金属（Ti，Zr和Hf）的氧化物的氮化结果。这些元素已成功氮化，以形成具有近似组成MN0.9（M =金属）的化合物。在研磨过程中检测到包括三元合金和低价氧化物的中间相。将所得的氮氧化物陶瓷组合物与通过热力学考虑预测的组合物进行比较。 （C）1998 Elsevier Science S.A. [参考：64]

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