Abstract
Study of the glass stability for amorphous Se60Ge15X25 (X = Sn, As) compositions has been performed by determination and evaluation of the widely used and more recently glass stability (GS) criteria. Calorimetric differential thermal analysis (DTA) measurements have been used under non-isothermal conditions at different heating rates. GS criteria have been determined based on the interrelationship of the estimated characteristic temperatures from DTA curves. All GS criteria are found to be heating rate and composition dependence. Their values and behaviors indicated that the most stable composition against devitrification with As addition. The calculated criteria values based on the onset crystallization temperature Tx and the maximum (peak) crystallization temperature Tc exhibit a similar behavior as a function of heating rate and composition, whereas both of them have incompatible values. The relative change parameter of GS criteria as well as their heating rate and composition dependence reflects that the more suitable and sensitive GS criterion, for the studied compositions, is Saad and Poulain’s criterion Ks and the less one is Lu and Liu’s criterion KLL for two studied compositions.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
