Results 251 to 260 of about 669,450 (300)

Glass-forming ability of alloys

Journal of Non-Crystalline Solids, 1993
Abstract New amorphous alloys exhibiting a wide supercooled liquid region before crystallization were found to form by melt spinning in wide composition ranges of LaAlM, MgYM and ZrAlM (M = Ni or Cu) systems consisting of the constituent elements with significantly different atomic sizes.
Akihisa Inoue, Tao Zhang, Tsuyoshi Masumoto   +2 more
openaire   +1 more source

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
openaire   +1 more source

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
openaire   +1 more source

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
openaire   +1 more source

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
openaire   +1 more source

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
openaire   +1 more source

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
openaire   +1 more source

Identify the best glass forming ability criterion

Intermetallics, 2010
Understanding glass formation and predicting glass forming ability (GFA) are vitally important and they are long-standing challenges in the metallic glasses community. Recently, a number of criteria have been developed to evaluate GFA, based mainly on fitting the experimental data of the critical cooling rate for glass forming.
Sheng Guo, Z.P. Lu, C.T. Liu
openaire   +1 more source

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.
openaire   +1 more source

Correlation between fragility and glass-forming ability/plasticity in metallic glass-forming alloys

Applied Physics Letters, 2007
In the present study, the authors draw attention to the relationship among fragility index (m), glass-forming ability (GFA), and plasticity in various metallic glass-forming alloys (MGAs), and show that the m value is closely related to both characteristics.
E. S. Park, J. H. Na, D. H. Kim
openaire   +1 more source