TY - JOUR
T1 - Observation of artifact-free amorphous structure in Cu-Zr-based alloy using transmission electron microscopy
AU - Chang, H. J.
AU - Park, E. S.
AU - Kim, Y. C.
AU - Kim, D. H.
PY - 2005/10/15
Y1 - 2005/10/15
N2 - The effect of the sample preparation method on the observation of amorphous structure in glass forming Cu-Zr, Cu-Zr-Ti and Cu-Zr-Ti-Ni alloys (Cu-Zr-based alloys) using transmission electron microscopy (TEM) has been investigated. The result shows that the selection of a proper sample preparation method is crucial in observing artifact-free amorphous microstructure, since Cu-Zr-based alloy is readily oxidized in air atmosphere. Electro-chemical thinning or electro-chemical thinning followed by ion milling causes oxide (Cu2O and CuO) contamination on the surface of the sample. Only low-energy ion milling with liquid nitrogen cooling can result in the observation of a fully amorphous structure. The exposure time of the thin foil sample in air before TEM examination should be minimized to observe the microstructure without contamination.
AB - The effect of the sample preparation method on the observation of amorphous structure in glass forming Cu-Zr, Cu-Zr-Ti and Cu-Zr-Ti-Ni alloys (Cu-Zr-based alloys) using transmission electron microscopy (TEM) has been investigated. The result shows that the selection of a proper sample preparation method is crucial in observing artifact-free amorphous microstructure, since Cu-Zr-based alloy is readily oxidized in air atmosphere. Electro-chemical thinning or electro-chemical thinning followed by ion milling causes oxide (Cu2O and CuO) contamination on the surface of the sample. Only low-energy ion milling with liquid nitrogen cooling can result in the observation of a fully amorphous structure. The exposure time of the thin foil sample in air before TEM examination should be minimized to observe the microstructure without contamination.
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U2 - 10.1016/j.msea.2005.06.017
DO - 10.1016/j.msea.2005.06.017
M3 - Article
AN - SCOPUS:26944477400
VL - 406
SP - 119
EP - 124
JO - Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing
JF - Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing
SN - 0921-5093
IS - 1-2
ER -