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首页> 外文会议>Symposium on Quasicrystals held November 30-December 2,1998,Boston,Massachusetts,U.S.A. >Ti/Zr-based quasicrystals-formation,structure and hydrogen storage properties
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Ti/Zr-based quasicrystals-formation,structure and hydrogen storage properties

机译：Ti / Zr基准晶体的形成，结构和储氢性能

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摘要

Most common in Al-3d transition metal (TM) alloys,icosahedral quasicrystals (i-phase) are also found frequently in Ti/Zr-TM alloys.the Ti-TM-Si-O quasicrystals aqre metastable,produced only by rapid quenching,and are extremely disordered.In contrast,Ti-Zr-Ni i-phases are well ordered and stable,produced by relatively low temeprature annealing,nearly 300 deg C below the melting temperature.Important for both basic and practical reasons,Ti/Zr-based quasicrystals cna absorb significant quantities of hydrogen,up to two hydrogen atoms for each metal atom.the formaiton and sstructures of these quasicrystals and closely related complex crystal phases are discussed,The hydrogenation properties of these quasicrystals are presented and hsown to be competitive with mateirals in current use for hydrogen storage and battery applications.Results from recent studies usifng hydrogen as a probe of the local structure of the quasicrystal and crystal approximant are presented.
机译：Ti / Zr-TM合金中也最常见于Al-3d过渡金属（TM）合金，二十面体准晶体（i相）.Ti-TM-Si-O准晶体是亚稳的，只能通过快速淬火来生产，相比之下，Ti-Zr-Ni i相具有良好的有序性和稳定性，是由相对较低的温度退火（低于熔融温度近300℃）产生的。从基本和实际的角度来看，Ti / Zr-基的准晶体可以吸收大量的氢，每个金属原子最多吸收两个氢原子。讨论了这些准晶体的形态和结构以及紧密相关的复杂晶相，并提出了这些准晶体的氢化性质，并与材料竞争。提出了使用氢作为准晶体和晶体近似物的局部结构探针的最新研究成果。

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