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Examines a quasicrystalline phase discovered in a Zr[sub 65]Al[sub 7.5]Nu[sub 10]Cu[sub 12.5]Ag[sub 5] bulk metallic glass annealed in the supercooled liquid range. Electron diffraction patterns; Rotational symmetry; Formation of the phase by the addition of Ag; Relationship between Zr-based bulk metallic glasses and icosahedral quasicrystalline.

Describes the fracture surfaces of a nanocrystallized Zr[sub 65]Cu[sub 15]Al[sub 10]Pd[sub 10] metallic glass on an atomic scale with field ion microscopy. Propagation of cracks along the interfaces between nanocrystals and the amorphous matrix in the alloy with optimized microstructures.

Analyzes atom probe results on impurity oxygen dissolution in a nanocrystallized Zr[sub 65]Cu[sub 15]Al[sub 10]Pd[sub 10] metallic glass. Redistribution during nanocrystallization; Promotion of crystallization by impurity oxygen by forming metastable phases containing high content oxygen.

A method is proposed to measure the plastic deformation of thin metallic films on Si substrates induced by thermal cycling. The cross-sectional profiles of pattern-grown square Al films with a thickness of ∼250 nm and a size of ∼6 μmx6 μm were measured before and after thermal cycling by employing an atomic force microscope. With the assistance of statistical analysis, the change in the size and shape of the thin films were determined. Based on theoretical considerations, the thermal cycling deformation of thin films is attributed to creep and plasticity effects, accommodated by diffusion-controlled interfacial sliding. © 2000 American Institute of Physics. [ABSTRACT FROM AUTHOR]