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glass transition (glasses)

A Study of Glass Transition Kinetics of Te 15

A Study of Glass Transition Kinetics of Te 15

... the glasses was confirmed as there was no prominent peak in their X-ray diffraction ...prepared glasses were grounded to make fine powder for DTA ...get glass transition temperature T g ...

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Kinematical Studies of the Glass Transition in Glassy (Bi2Se3)1-X Tex System

Kinematical Studies of the Glass Transition in Glassy (Bi2Se3)1-X Tex System

... sharp glass liquid transition characteristics of amorphous material 56 ...a glass upon heating can be performed in several different ...the glass transition temperature, T g , and the ...

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Local Structure and Glass Transition in Zr Based Binary Amorphous Alloys

Local Structure and Glass Transition in Zr Based Binary Amorphous Alloys

... good glass-forming ability (GFA) usually show the glass-liquid transition and hence they are called ‘‘metallic glasses’’, in conformity with the definition that ‘‘a glass is an amorphous ...

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Glass Transition Like Behavior of Grain Boundaries in Nanocrystalline Gold

Glass Transition Like Behavior of Grain Boundaries in Nanocrystalline Gold

... As shown in Fig. 5(a)–(c), an increase in the anelasticity, endothermic tendency, and deviational decrease in the elec- trical resistivity can be observed, but the onset temperatures were somewhat different between the ...

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Comparison of Structural Relaxation Behavior in As Cast and Pre Annealed Zr Based Bulk Metallic Glasses Just below Glass Transition

Comparison of Structural Relaxation Behavior in As Cast and Pre Annealed Zr Based Bulk Metallic Glasses Just below Glass Transition

... melting the mixture of constituent metal tips with a purity of 99.99 at%, where, regarding Zr tips, the crystal-Zr with less oxygen content (µ 100 ppm) was used. Rod-shaped BMGs were produced by tilted copper-mold ...

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Effects of Atomic Deviatoric Distortion on Local Glass Transition of Metallic Glasses

Effects of Atomic Deviatoric Distortion on Local Glass Transition of Metallic Glasses

... global glass transition occurs, the degree of saturation of the atoms with strains over the critical value reaches 80% for volumetric strain and 95% for deviatoric ...

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Infrared transmitting glasses with high glass transition temperatures

Infrared transmitting glasses with high glass transition temperatures

... chalcogenide glass capable of infrared transmission which is either sulfur, selenium or tellurium based and consists of compositions of the formula ...the glass with the result being that excellent high ...

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Atomic Level Structure and Deformation in Metallic Glasses

Atomic Level Structure and Deformation in Metallic Glasses

... liquid-glass transition appears to be a universal phenomenon in that any liq- uid can vitrify with sufficiently fast ...the glass transition may be unique ? other common glasses such as ...

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Compositional dependency on dissolution rate and cytocompatibility of phosphate based glasses: effect of B2O3 and Fe2O3 addition

Compositional dependency on dissolution rate and cytocompatibility of phosphate based glasses: effect of B2O3 and Fe2O3 addition

... phosphate-based glasses and fibres to be completely dissolved in aqueous media is largely dependent on the glass ...3 glass system, where P 2 O 5 content was fixed at 45 ...O–MgO glasses was ...

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Preparation and Characterization of Phosphate Material Doped with Chromium

Preparation and Characterization of Phosphate Material Doped with Chromium

... phosphate glasses have been studied for their interesting properties [1, ...phosphate glasses have shown that the addition of iron to sodium phosphate glasses had a significant effect on the ...

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Optical Properties of Neodymium Ion Doped Lithium Borate Glasses

Optical Properties of Neodymium Ion Doped Lithium Borate Glasses

... maintained within the range 1000-1050 and kept the melt at this temperature for an hour till a bubble free liquid was formed. For the homogeneous mixing of all the constituents the crucibles were shaken frequently. The ...

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Study on the role of manganese ions on physical and structural properties of alumino-phosphate glasses by means of spectroscopic analysis

Study on the role of manganese ions on physical and structural properties of alumino-phosphate glasses by means of spectroscopic analysis

... Phosphate glass is a class of optical glasses composed of metaphosphates of various ...Phosphate glasses are useful for applications such as bone transplantation, fast ion conductors, laser host ...

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Structural Investigation, Physical and Optical Properties of Mixed Alkali Bismuth Borate Glasses

Structural Investigation, Physical and Optical Properties of Mixed Alkali Bismuth Borate Glasses

... borate glasses have been studied to obtain information about the mixed alkali ...the glasses have been ...the glass transition temperature, and the non-linear behavior of density, molar ...

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Structural Characterization of Borate Glasses Containing Zinc and Manganese Oxides

Structural Characterization of Borate Glasses Containing Zinc and Manganese Oxides

... the glass transition temperature (Tg) and crystallization temperature (Tc) of the glasses increases with the increase of borate content in the ...

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To Study the Trends of Activation Energy in Metal Extractions Process

To Study the Trends of Activation Energy in Metal Extractions Process

... the glass transition region which determined from the heating rate dependence of the glass transition temperature Tg or the cooling rate dependence of the limiting fictive temperature T′f ...

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Viscous Flow Behavior and Workability of Mg Cu (Ag) Gd Bulk Metallic Glasses

Viscous Flow Behavior and Workability of Mg Cu (Ag) Gd Bulk Metallic Glasses

... metallic glasses are shown in Fig. 1(b). The samples exhibit a clear glass transition, followed by a broad supercooled liquid region, and the exothermic reactions due to ...The glass ...

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Core/clad phosphate glass fibres containing iron and/or titanium

Core/clad phosphate glass fibres containing iron and/or titanium

... Phosphate glasses are novel amorphous bioma- terials due to their fully resorbable characteristics, with controllable degradation ...phosphate glasses containing titanium and/or iron were identified to ...

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Investigation of thermal tempering in bulk metallic glasses

Investigation of thermal tempering in bulk metallic glasses

... silicate glasses and terms such as tem- perature equalization and solidification stresses are taken from this ...the glass transition region is a complicated problem and necessitate various levels of ...

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Controlling the Morphology of Composite Latex Particles, Douglas Holmes

Controlling the Morphology of Composite Latex Particles, Douglas Holmes

... the glass transition temperature of the second polymer, or second stage, while keeping the glass transition temperature of the first polymer, or seed latex, ...polymer's glass ...

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Microstructure, mechanical and thermal properties of chalcogenide glasses and glass-ceramics based on Se-As-Ge system nucleated by Sn

Microstructure, mechanical and thermal properties of chalcogenide glasses and glass-ceramics based on Se-As-Ge system nucleated by Sn

... Chalcogenide glasses are semiconductor materials that are oxygen-free and have been considered by many researchers because of their high transmittance in the IR region and military and civilian ...these ...

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