Results 251 to 260 of about 216,525 (294)

Thermodynamic and Viscous Behaviour of Glass Forming Melts and Glass Forming Ability

AIP Conference Proceedings, 2010
The bulk metallic glasses (BMGs) have achieved a great interest due to their scientific and potential technological applications and these are among the most extensively studied advanced materials. The understanding of the glass forming ability (GFA) of these multicomponent metallic alloys is an essential parameter to develop new non‐crystalline ...
K. S. Dubey, Arun Pratap, N. S. Saxena
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Glass-forming ability of butanediol isomers

Journal of Thermal Analysis and Calorimetry, 2010
In this study, the thermal behavior of butanediol isomers is investigated for temperatures ranging from 103 to 303 K using differential scanning calorimetry, complemented, when necessary, by polarized light thermal microscopy. The butanediol isomers display quite different thermal behaviors: for 1,2- and 1,3-isomers, glass transition is the only ...
Teresa M. R. Maria, A. J. Lopes Jesus, M. Ermelinda S. Eusébio   +2 more
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The effect of Y on glass forming ability

Scripta Materialia, 2005
Abstract We have discovered a new glass forming region (GFR) defined by melt-spinning at a speed of 30 m/s in a ternary Fe–Fe2B–Fe4B4Y eutectic in the Fe–B–Y alloy system. This GFR is remarkably wide, within the compositional range 19–40 at.% B, 3 to ∼10 at.% Y and 76–50 at.% Fe, with the best glass former being Fe71.2B24Y4.8 for a 1 mm fully ...
Zhang, J., Tan, H., Feng, Y.P., Li, Y.
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Evaluation Of Glass-Forming Ability

2008
Bulk Metallic Glasses explores an emerging field of materials known as bulk metallic glasses. It summarizes the rapid development of these materials over the last decade and includes documentation on diverse applications of bulk metallic glasses; from structural applications to microcomponents.
Z. P. Lu, Y. Liu, C. T. Liu
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Alloys of high glass-forming ability

Journal of Non-Crystalline Solids, 1996
Abstract A series of Zr-Ti-Al-Cu-Ni alloys, e.g., Zr 57 Ti 5 Al 10 Cu 20 Ni 8 , were found to have high glass-forming ability (GFA). Cylindrical bulk amorphous samples with diameters of 10 mm were produced by casting the melts in a copper mould. The Zr 65 Cu 17.5 Ni 10 Al 7.5 alloy, which was reported to have the highest GFA heretofore, was found to
L.Q. Xing, P. Ochin, M. Harmelin, F. Faudot, J. Bigot   +4 more
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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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Liquid phase as an indicator of glass-forming ability

Intermetallics, 2021
Abstract For thermodynamics reasons, most liquids crystallize when they are cooled below their liquidus temperature. However, crystallization can be obstructed if the cooling occurs faster than some critical cooling rate (102 −1010 K/s). Under such conditions, it is suggested that atoms are forced to ‘freeze-in’ at their positions [ 1 , 2 ] with some
Syed Ghazi Sarwat, K.R. Ravi
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