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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 >Electrochemical properties of Ti_(45-x)Zr_(30+x)Ni_(25) (x = -4, 0, 4) quasicrystal and amorphous electrodes produced by mechanical alloying
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Electrochemical properties of Ti_(45-x)Zr_(30+x)Ni_(25) (x = -4, 0, 4) quasicrystal and amorphous electrodes produced by mechanical alloying

机译：机械合金化制备的Ti_（45-x）Zr_（30 + x）Ni_（25）（x = -4，0，4）准晶体和非晶电极的电化学性能

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摘要

The effect of substitution of Zr for Ti on the discharge performance of electrodes consisted of Ti_(45-x)Zr_(30+x)Ni_(25) (x = -4,0,4) powders produced by mechanical alloying (MA) and subsequent annealing was investigated by a three-electrode cell at room temperature. All the powders after MA were amorphous, but a subsequent annealing caused the formation of the icosahedral (i) quasicrystal phase with a Ti_2Ni type crystal phase as the second phase. The discharge capacities for both the amorphous and the i-phase electrodes decreased with increasing amount of Zr substituted for Ti. The maximum discharge capacity achieved was about 130 mA h/g from a (Ti_(49)Zr_(26)Ni_(25)) i-phase electrode at the first discharge process. The discharge capacities of the amorphous electrodes were lower than those of the i-phase ones if the composition levels were alike.
机译：用机械合金化（MA）生产的Ti_（45-x）Zr_（30 + x）Ni_（25）（x = -4,0,4）粉末组成的Zr替代Ti对电极放电性能的影响然后通过三电极电池在室温下研究随后的退火。 MA之后的所有粉末都是非晶态的，但是随后的退火导致形成了以Ti_2Ni型晶相作为第二相的二十面体（i）准晶相。随着Zr量的增加，Ti和非晶相电极的放电容量均降低。在第一个放电过程中，从（Ti_（49）Zr_（26）Ni_（25））i相电极获得的最大放电容量约为130 mA h / g。如果组成水平相同，则非晶电极的放电容量低于i相电极的放电容量。

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