Results 251 to 260 of about 165,306 (295)

Influence of preparation pathway on the glass forming ability

International Journal of Pharmaceutics, 2017
The glass forming ability (GFA), i.e. the ease of amorphization of drugs, is mostly investigated using the critical cooling rate upon melt quenching to generate an amorphous product via the thermodynamic pathway. However, amorphous materials can also be prepared via the kinetic pathway by milling.
Blaabjerg, Lasse Ingerslev, Lindenberg, Eleanor, Rades, Thomas, Grohganz, Holger, Löbmann, Korbinian   +4 more
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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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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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Reduced glass transition temperature and glass forming ability of bulk glass forming alloys

Journal of Non-Crystalline Solids, 2000
Abstract Onset temperature (solidus) T m and offset temperature (liquidus) T l of melting of a series of bulk glass forming alloys based on Zr, La, Mg, Pd and rare-earth elements have been measured by studying systematically the melting behaviour of these alloys using DTA or DSC. Bulk metallic glass formation has been found to be most effective
Lu, Z.P., Li, Y., Ng, S.C.
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On The Glass Forming Ability Criteria Of Bulk Metallic Glasses

MRS Proceedings, 2002
ABSTRACTA new criterion γ, defined as Tx/(Tg+Tl) (where Tx is the onset crystallization temperature, Tg the glass transition temperature and Tl the liquidus temperature), has been proposed for glass formation in bulk metallic glasses (BMGs). The interrelationship between this new parameter and glass-forming ability (GFA) was elaborated and discussed in
Z. P. Lu, C. T. Liu
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Glass-forming ability of rare earths in fluorozirconate glasses

Journal of Non-Crystalline Solids, 1994
Abstract The effects of rare earth elements on glass formation regions in the systems ZrF 4 BaF 2 LnF 3 AlF 3 (Ln is a rare earth element and AlF 3 concentration is 4 mol%) has been examined. It is found that glass formation regions gradually shift to higher concentrations of rare earth fluoride with decreasing rare earth element radius.
N.V. Gur'ev, A.N. Chikovsky, V.P. Kolobkov, M.L. Leskova, G.T. Petrovskii, I.A. Zhmyreva   +5 more
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Glass forming ability and thermal stability of oxyfluoride glasses

Journal of Thermal Analysis and Calorimetry, 2009
New oxyfluoride glasses based on the system ZrO2-Pr2O3-ZrF4-BaF2 were obtained, and the glass forming ability of this system was evaluated. The effects of glass composition on both thermal stability and the crystalline phases formed upon heat treatment were determined by the DSC and XRD methods, respectively.
A. R. Marquesi, J. R. J. Delben, A. A. S. T. Delben   +2 more
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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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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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