Results 31 to 40 of about 6,683,310 (305)

Effects of Annealing on Enthalpy Recovery and Nanomechanical Behaviors of a La-Based Bulk Metallic Glass

open access: yesMetals, 2021
Structural relaxation and nanomechanical behaviors of La65Al14Ni5Co5Cu9.2Ag1.8 bulk metallic glass (BMG) with a low glass transition temperature during annealing have been investigated by calorimetry and nanoindentation measurement.
Ting Shi, Lanping Huang, Song Li
doaj   +1 more source

Temperature dependence of the interfacial shear strength in glass reinforced polypropylene and epoxy composites [PDF]

open access: yes, 2013
We have recently reported the development of a method which allows the measurement of IFSS over a wide temperature range [6,7]. In this paper we present data obtained using the microbond test in the temperature controlled environment of a thermo ...
Thomason, James, Yang, Liu
core   +2 more sources

Temperature dependent dynamics transition of intermittent plastic flow in a metallic glass. I. Experimental investigations [PDF]

open access: yes, 2013
Cooling shrinkage can increase the atomic packing density of metallic glasses, which can influence their elastic and plastic behaviour. In the present study, the compressive deformation behaviour of a Zr-based metallic glass at temperatures well below ...
X. H. Xu   +20 more
core   +1 more source

Variation of glass transition temperature in PMMA after irradiation.

open access: yes, 2023
Variation of glass transition temperature in PMMA after irradiation.
Ling Qin (68169)   +5 more
core   +1 more source

High glass transition catalyst-free fire-retardant polybenzoxazine vitrimer through solventless one-pot method [PDF]

open access: yes, 2023
A high-temperature polybenzoxazine vitrimer has been synthesised by a solventless one-pot method involving the Mannich condensation of a phenolic disulphide, paraformaldehyde and aniline.
Alex A., Skordos, Festus Ifeanyi, Anagwu
core   +1 more source

Oxidation induced changes in viscoelastic properties of a thermostable epoxy matrix [PDF]

open access: yes, 2013
The thermal ageing of a neat epoxy matrix has been studied at 200°C in air by three complementary analytical techniques: optical microscopy, mechanical spectrometry and nano-indentation. Thermal oxidation is restricted in a superficial layer of about 195
TEREKHINA, Svetlana   +3 more
core   +1 more source

Viscosity and Glass Transition in Amorphous Oxides

open access: yesAdvances in Condensed Matter Physics, 2008
An overview is given of amorphous oxide materials viscosity and glass-liquid transition phenomena. The viscosity is a continuous function of temperature, whereas the glass-liquid transition is accompanied by explicit discontinuities in the derivative ...
Michael I. Ojovan
doaj   +1 more source

Glass Transition Temperatures in Polymer Mixtures [PDF]

open access: yesPolymer Journal, 1986
A fluid-lattice theory of fluid mixtures is combined with the Gibbs-DiMarzio approach of zero configurational entropy at glass transition in order to correlate and predict the composition dependence of glass transition temperature, Tg, in one-phase polymer mixtures. Such a combination allows an independent quantitative estimation of the significance to
openaire   +1 more source

Determination of the Glass Transition Temperature of Freestanding and Supported Azo-Polymer Thin Films by Thermal Assisted Atomic Force Microscopy

open access: yesEPJ Web of Conferences, 2017
In this paper we introduce and apply the method for determination of the glass transition temperature of the sub-100 nm thick freestanding and supported polymer films based on thermally assisted atomic force microscopy (AFM). In proposed approach changes
Chernykh Elena   +4 more
doaj   +1 more source

Stability of ZrTiCuNiBe Bulk Metallic Glass Upon Isothermal Annealing Near the Glass Transition Temperature

open access: yes, 2002
The stability of Zr41Ti14Cu12.5Ni10Be22.5 bulk metallic glass (BMG) upon isothermal annealing near the glass transition temperature has been investigated by using x-ray diffraction, differential scanning calorimetry, and the pulse echo overlap method ...
Yang WT   +6 more
core   +1 more source

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