准晶体的生长

Materials Science and Engineering Pub Date : 1988-03-01 DOI:10.1016/0025-5416(88)90374-6

S.R. Nishitani, K.N. Ishihara, K.F. Kobayashi, P.H. Shingu

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引用次数: 5

摘要

在AlMn和AlCr体系中，通过射频(rf)溅射沉积和液体淬火产生二十面体相。射频溅射镀层中二十面体过渡金属的浓度范围高于液淬试样。射频溅射沉积产生的二十面体相的生长习性与液体淬火产生的生长习性相似。在AlMn二十面体相中，两种方法的热稳定性相似。而在AlCr体系中，射频溅射沉积生成的二十面体相比液相淬火生成的二十面体相更稳定。采用应变粉末轧制法制备了AlMnCrSi合金的二十面体相样品，以测定其力学性能。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Growth of quasi-crystals

In AlMn and AlCr systems, icosahedral phases are produced by radio-frequency (r.f.) sputter deposition and liquid quenching. The concentration ranges of transition metals in icosahedral phases for r.f. sputter deposits are higher than those for liquid-quenched samples. The growth habit of the icosahedral phase produced by r.f. sputter deposition is similar to that produced by liquid quenching. In the AlMn icosahedral phase, the thermal stability in both methods is similar. But in the AlCr system, the icosahedral phase produced by r.f. sputter deposition is more stable than that produced by liquid quenching. Bulk samples of icosahedral phase in an AlMnCrSi alloy are produced by strained powder rolling, to measure mechanical properties.

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