Results 221 to 230 of about 162,548 (258)

A New Criterion for Evaluating the Glass-Forming Ability of Bulk Metallic Glasses

Materials Science and Engineering: A, 2006
A new criterion, derived according to the classical theory of nucleation and growth and the perspective of phase transformation kinetics, has been proposed for evaluating the glass-forming ability (GFA) of bulk metallic glasses (BMGs) by measuring the characteristic thermal parameters. A survey of the readily available experimental data associated with
Qingjun Chen, Jun Shen, Deliang Zhang, Hongbo Fan, Jianfei Sun, D.G. McCartney   +5 more
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Glass-forming ability and glass stability in simple systems

Journal of Non-Crystalline Solids, 1994
The interrelationship between glass-forming ability and stability of glass to devitrification is examined. Quantitative criteria for assessing the latter properties are adopted. Glass-forming ability is gauged by the critical cooling rate, Rc, and glass stability by the difference between the temperature of maximum crystallization in a non-isothermal ...
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Glass forming ability and microstructure of hard magnetic Nd60Al20Fe20 glass forming alloy

Intermetallics, 2006
Abstract Glass forming ability (GFA), magnetic properties and microstructure of Nd 60 Al 20 Fe 20 as-cast rod were investigated and further compared with Nd 60 Al 10 Fe 30 glass forming alloy. The rod prepared by suction casting with a diameter of 3 mm exhibits the typical amorphous nature in XRD pattern, distinct glass transition in DSC traces and
L. Xia, S.S. Fang, C.L. Jo, Y.D. Dong
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New criterion in predicting glass forming ability of various glass-forming systems

Chinese Physics B, 2008
It has been confirmed that glass-forming ability (GFA) of supercooled liquids is related to not only liquid phase stability but also the crystallization resistance. In this paper, it is found that the liquid region interval (Tl – Tg) characterized by the normalized parameter of Tg/Tl could reflect the stability of glass-forming liquids at the ...
X. H Du, J. C Huang
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Effects of partitioned enthalpy of mixing on glass-forming ability

The Journal of Chemical Physics, 2015
We explore the inherent reason at atomic level for the glass-forming ability of alloys by molecular simulation, in which the effect of partitioned enthalpy of mixing is studied. Based on Morse potential, we divide the enthalpy of mixing into three parts: the chemical part (Δ Enn), strain part (Δ Estrain), and non-bond part (Δ Ennn).
Wen-Xiong, Song, Shi-Jin, Zhao
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Matching Glass-Forming Ability with the Density of the Amorphous Phase

Science, 2008
The density of the amorphous phase of metals is generally thought to be related to glass formation, but this correlation has not been demonstrated experimentally to date. In this work, systematic deflection measurements using microcantilevers and a combinatorial deposition method show a correlation between glass-forming ability and the density change ...
Li, Y., Guo, Q., Kalb, J.A., Thompson, C.V.   +3 more
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Understanding the Origin of Glass Forming Ability in Metallic Glasses

2018
The glass forming ability of metallic glasses has been one of their most studied yet least understood properties. Crystal nucleation in a recently development Ni-based metallic glass was studied by undercooling in a DSC under a variety of conditions and showed stochastic very deep undercooling behavior.
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Rigidity, Connectivity, and Glass‐Forming Ability

Journal of the American Ceramic Society, 1993
Following the ideas of Zachariasen and of Cooper, it is argued that the glass‐forming ability of a system can be rationalized in terms of the degrees of freedom available to form an infinitely large topologically disordered network composed of rigid structural units connected at vertices, edges, or faces.
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Glass Forming Ability Criterion

Materials Science Forum, 1987
Mohammed Saad, Marcel Poulain
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On the Glass Forming Ability of Bulk Metallic Glasses

Materials Science Forum, 1996
Ralf Busch, Eric Bakke, William L. Johnson   +2 more
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