Study of oxidation behaviour of Zr-based bulk amorphous alloy Zr65CU17.5Ni10Al7.5 by thermogravimetric analyser

Authors
Dhawan, A Raetzke, K Faupel, F Sharma, SK
Citation
A. Dhawan et al., Study of oxidation behaviour of Zr-based bulk amorphous alloy Zr65CU17.5Ni10Al7.5 by thermogravimetric analyser, B MATER SCI, 24(3), 2001, pp. 281-283
Citations number
10
Categorie Soggetti
Material Science & Engineering
Journal title
BULLETIN OF MATERIALS SCIENCE
ISSN journal
02504707 → ACNP
Volume
24
Issue
3
Year of publication
2001
Pages
281 - 283
Database
ISI
SICI code
0250-4707(200106)24:3<281:SOOBOZ>2.0.ZU;2-C
Abstract
The oxidation behaviour of Zr-based bulk amorphous alloy Zr65Cu17.5Ni10Al7. 5 has been studied in air environment at various temperatures in the temper ature range 591-684 K using a thermogravimetric analyser (TGA), The oxidati on kinetics of the alloy in the amorphous phase obeys the parabolic rate la w for oxidation in the temperature range 591-664 K, The values of the activ ation energy and pre-factor as calculated From the Arrhenius temperature de pendence of the rate constants have been found to be 1(.)80 eV and 2(.)12 x 10(9) g(.)cm(-2) sec(-1/2), respectively.