Relations of the characteristic temperatures and fragility parameters in glass-forming metallic system

2004 ◽  
Vol 349 (1-4) ◽  
pp. 327-332 ◽  
Author(s):  
Yan Zhao ◽  
Xiufang Bian ◽  
Kuibo Yin ◽  
Jiankun Zhou ◽  
Junyan Zhang ◽  
...  
Keyword(s):  
Metallic System ◽  
Glass Forming ◽  
Characteristic Temperatures

A criterion of glass-forming ability and stability derived from pseudo-four characteristic temperatures

2021 ◽  
Vol 134 ◽  
pp. 107201
Author(s):  
Xiaocheng Li ◽  
Shengzhong Kou ◽  
Chunyan Li ◽  
Yanchun Zhao ◽  
Yutian Ding
Keyword(s):  
Glass Forming Ability ◽  
Glass Forming ◽  
Characteristic Temperatures

Phosphotellurite glass and glass-ceramics with high TeO2 contents: thermal, structural and optical properties

2019 ◽  
Vol 48 (18) ◽  
pp. 6261-6272 ◽  
Author(s):  
Danilo Manzani ◽  
João B. Souza Junior ◽  
Albert S. Reyna ◽  
Manoel L. Silva Neto ◽  
Jessica E. Q. Bautista ◽  
...  
Keyword(s):  
Optical Properties ◽  
Glass Ceramics ◽  
Glass Forming Ability ◽  
Transparency Window ◽  
Structural And Optical Properties ◽  
Glass Forming ◽  
Characteristic Temperatures

Phosphotellurite based glasses and glass-ceramics have interesting features such as low characteristic temperatures, high glass forming ability, promising optical properties and a broad transparency window from UV to NIR.

Correlation Between Thermodynamic and Kinetic Properties of Glass-Forming Liquids

2007 ◽  
Vol 1048 ◽  
Author(s):  
Oleg N. Senkov ◽  
Daniel B. Miracle
Keyword(s):  
Glass Transition ◽  
Geometric Mean ◽  
Configurational Entropy ◽  
Excess Heat Capacity ◽  
Kinetic Properties ◽  
Vibrational Entropy ◽  
Glass Forming ◽  
Characteristic Temperatures ◽  
Higher Temperature ◽  
Glass Forming Materials

AbstractCorrelations between three characteristic temperatures: glass transition, Tg, Kauzmann, Tk, and Vogel-Fulcher-Tammann, To, were identified from the analysis of more than 60 metallic and non-metallic glass-forming materials. It was found that Tg ≥ Tk ≥ To and Tk is the geometric mean of Tg and To. The relation Tk ≥ To indicates that the excess total entropy of a super-cooled liquid ΔS approaches zero at a higher temperature than the configurational entropy ΔSconf, and such behavior was explained by the stronger temperature dependence of the excess vibrational entropy of the liquid, ΔSvib, than that of the corresponding glass, . A relationship between the fragility index m, reduced excess heat capacity ΔCp(Tg)/Sm, and reduced glass transition temperature, Trg, was identified using the found correlation between the characteristic temperatures.

Glass formation, thermal properties, and elastic constants of La–Al–Co alloys

2010 ◽  
Vol 25 (7) ◽  
pp. 1398-1404 ◽  
Author(s):  
Ran Li ◽  
Mihai Stoica ◽  
Gang Wang ◽  
Jin Man Park ◽  
Yan Li ◽  
...  
Keyword(s):  
Elastic Constants ◽  
Metallic Glasses ◽  
Glass Formation ◽  
Elastic Moduli ◽  
Bulk Glass ◽  
Compositional Dependence ◽  
Glass Forming ◽  
Characteristic Temperatures ◽  
The Relationship ◽  
Co Alloys

The compositional dependence of glass formation and thermal and elastic properties was clarified for the ternary La–Al–Co bulk glass-forming system. The existing linear correlation between La concentration and characteristic temperatures, i.e., the glass transition temperature Tg and the onset temperature of crystallization Tx, as well as the elastic moduli in this system can give a useful guideline for the chemical design of desirable bulk metallic glasses (BMGs) with tunable physical properties in advance. The relationship between Tg and elastic constants for the La–Al–Co BMGs can be quantitatively described using a microscopic model proposed by T. Egami.

scholarly journals Crystallization kinetics accountability and the correspondingly developed glass-forming criteria: A personal recollection at the forty years anniversaries

2011 ◽  
Vol 47 (2) ◽  
pp. 229-239 ◽  
Author(s):  
J. Sesták ◽  
A. Kozmidis-Petrovic ◽  
Z. Zivkovic
Keyword(s):  
Crystallization Kinetics ◽  
Empirical Equation ◽  
Avrami Equation ◽  
Crystallisation Kinetics ◽  
Glass Forming ◽  
Characteristic Temperatures ◽  
Personal Recollection ◽  
Purpose Of Evaluation

The meaning of experimentally determined characteristic temperatures is analyzed in terms of Hruby glass forming criterion. Despite various analyzed modifications it reveals that the sensitivity of original criterion is unsurpassable. The applicability of Sestak-Berggren empirical equation for the description of crystallisation kinetics is comparable with the classical modelling based on Johnson-Mehl-Avrami equation. Their employment is certainly dependent to the purpose of evaluation showing their substitution ability and limits.

Glass-forming ability for selected quasi-ternary metallic system: Magnetism and heat capacity

2014 ◽  
Vol 383 ◽  
pp. 2-5 ◽  
Author(s):  
B. Idzikowski ◽  
Z. Śniadecki ◽  
M. Reiffers ◽  
U.K. Röβler
Keyword(s):  
Heat Capacity ◽  
Glass Forming Ability ◽  
Metallic System ◽  
Glass Forming
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