Mechanical spectrum study of glass transition by a composite method

2009 ◽  
Vol 404 (20) ◽  
pp. 3771-3774 ◽  
Author(s):  
Y.H. Yuan ◽  
L. Zhang ◽  
X.L. Wang ◽  
X.N. Ying ◽  
F. Yan ◽  
...  
Keyword(s):  
Glass Transition ◽  
Composite Method ◽  
Mechanical Spectrum

Glass-Transition Temperatures of Polyamide Textile Fibers

1977 ◽  
Vol 47 (7) ◽  
pp. 451-456 ◽  
Author(s):  
J. P. Walters ◽  
D. R. Buchanan
Keyword(s):  
Molecular Structure ◽  
Glass Transition ◽  
Disperse Dye ◽  
Glass Transition Temperatures ◽  
Textile Fibers ◽  
Dynamic Mechanical ◽  
Polyamide Textile ◽  
Mechanical Spectrum ◽  
Mechanical Experiment ◽  
Definition Of

Analysis of the detailed dynamic mechanical spectrum in the vicinity of the glass-transition temperature (Tg) of a series of polyamide textile fibers allows the prediction of their relative dyeabilities with a disperse dye, Celanthrene Fast Blue 2G, to an accuracy of about 1 K/S unit. The technique is sensitive enough to account for dyeing variations caused by annealing treatments or by drawing variations, as well as those caused by differences in molecular structure. From the position of the maximum in tan? as a function of temperature in a dynamic mechanical experiment, one definition of the Tg, it is possible to estimate semi-quantitatively whether or not a fiber will be dyeable at 100°C without carrier. In general, fibers whose Tg at 100% RH, as defined here, occurs at or below 100°C can be dyed to at least moderate shades without carrier.

A Strain-Glass Transition Observed in Au7Cu5Al4 Ternary Alloys

2012 ◽  
Vol 184 ◽  
pp. 361-365
Author(s):  
Xue Jun Jin ◽  
M. J. Jin ◽  
J. Y. Liu ◽  
G. L. Fan
Keyword(s):  
Phase Transformation ◽  
Glass Transition ◽  
Martensitic Transformation ◽  
Point Defects ◽  
Spectrum Analysis ◽  
Ternary Alloys ◽  
Mechanical Spectrum ◽  
New Type ◽  
Solute Atoms ◽  
Strain Glass Transition

Strain glass is a new type of glass state discovered recently in Ni-rich Ti-Ni ferroelastic alloys. It is formed by doping sufficient point defects such as solute atoms or alloying elements into a martensitic alloy to destroy the long range strain order generated by the diffusionless martensitic phase transformation. The strain glass was observed in an off-stoichiometric Heusler Au7Cu5Al4 alloy by the mechanical spectrum analysis. The martensitic transformation was experimentally confirmed following the occurrence of strain glass transition during the cooling. It is different from the model developed mainly in Ni-Ti based alloys among which the martensitic transformation was totally suppressed once the strain glass transition takes place. We conclude that newly observed strain glass in an off-stoichiometric Au7Cu5Al4 alloy belongs to one type of precursor phenomena.

Glass transition for dipolar hard spheres: a mode-coupling approach

1998 ◽  
Vol 77 (2) ◽  
pp. 305-311 ◽  
Author(s):  
Thomas Scheidsteger, Rolf Schilling
Keyword(s):  
Glass Transition ◽  
Mode Coupling ◽  
Hard Spheres ◽  
Coupling Approach

Single particle dynamics of supercooled water and the kinetic glass transition

1998 ◽  
Vol 08 (PR6) ◽  
pp. Pr6-109-Pr6-113
Author(s):  
P. Gallo ◽  
F. Sciortino ◽  
P. Tartaglia ◽  
S.-H. Chen
Keyword(s):  
Glass Transition ◽  
Single Particle ◽  
Supercooled Water ◽  
Particle Dynamics
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