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<strong>Yttrium Enhanced Glass-Forming Ability of Zr-Based Metallic Glasses</strong>

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Title Statement <strong>Yttrium Enhanced Glass-Forming Ability of Zr-Based Metallic Glasses</strong>
 
Added Entry - Uncontrolled Name Patel, Margi K. ; Applied Physics Department, Faculty of Technology & Engineering, The M. S. University of Baroda, Vadodara 390 001, Gujarat, India
Upadhyay, Deepak
Lad, Kirit N.
Pratap, Arun ; Faculty of technology and Engineering The Maharaja Sayajirao University of Baroda
SERB, New Delhi
 
Uncontrolled Index Term Gibbs free energy difference, Bulk metallic glass, glass forming ability, rare earth element, electronegativitydifference
 
Summary, etc. <p>Thermodynamic behavior of Zr<sub>56-x</sub>Co<sub>28</sub>Al<sub>16</sub>Y<sub>x</sub> (0, 2, 7, 10) bulk metallic glass-forming alloys has been studied using an analytical approach where some of the key thermodynamic quantities such as ΔH, ΔS and ΔG has been estimated using a hyperbolic temperature dependence of specific heat difference ΔC<sub>p</sub> in the supercooled liquid region. The study is focused on understanding the effect of Yttrium-doping on the thermodynamics of the alloys in the supercooled region and on the glass-forming ability of these alloys. The analytical approach has been found to give estimates of ΔG in a wide supercooled liquid region in excellent agreement with the experimental results. Estimated ΔG values are found to be minimum for Y concentration of 7 and 10% which is consistent with the observed high GFA for these compositions. Fundamental elemental properties such as atomic size, electronegativity, the heat of mixing have been found to play an important role in governing the thermodynamics of the alloys in the supercooled liquid region.</p>
 
Publication, Distribution, Etc. Indian Journal of Pure & Applied Physics (IJPAP)
2021-12-16 16:09:59
 
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http://op.niscair.res.in/index.php/IJPAP/article/view/55506
 
Data Source Entry Indian Journal of Pure & Applied Physics (IJPAP); ##issue.vol## 59, ##issue.no## 12 (2021): Indian Journal of Pure & Applied Physics
 
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Nonspecific Relationship Entry http://op.niscair.res.in/index.php/IJPAP/article/download/55506/465580041
http://op.niscair.res.in/index.php/IJPAP/article/download/55506/465580042
http://op.niscair.res.in/index.php/IJPAP/article/download/55506/465580043
http://op.niscair.res.in/index.php/IJPAP/article/download/55506/465580044
 
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