ISSN:
1662-9752
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
The electronic structure and phase stability of the Zr-Ni-Al ternary glassy alloys, havebeen systematically investigated experimentally and theoretically. Thermal stability andcrystallization process have been clarified by the DSC and XRD measurements. Compositiondependence of the stability parameter; Tg/Tl has been clarified. The electronic structure around theFermi level has been investigated by using the high resolution UPS. It is found that there is asizable pseudogap at the Fermi level of the electronic structure of the Zr65Ni20Al15 glassy alloy.The DVXα calculations for the charateristic clusters in the Zr-Ni-Al glassy alloy having high glassforming ability have been also performed. It is found that these clusters formation reduces theinternal energy and can contribute to the phase stability. The LMTO-ASA band calculations forthe Zr6NiAl2 compound which is the most relevant compound to the Zr60Ni25Al15 glassy alloy havebeen also performed. It is found that there is a sizable pseudogap at the Fermi level in itselectronic structure, suggesting exiting of the pseudogap of the glassy alloy
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/02/15/transtech_doi~10.4028%252Fwww.scientific.net%252FMSF.539-543.2048.pdf
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