Results 31 to 40 of about 224,961 (312)

Temperature dependent dynamics transition of intermittent plastic flow in a metallic glass. II. Dynamics analysis [PDF]

open access: yes, 2013
By reducing the testing temperatures down to the temperature well below the glassy transition temperature, the serrated flow behaviour during plastic deformation of a Zr-based metallic glass was experimentally investigated and the results were presented ...
Bian XL   +10 more
core   +1 more source

Thermal relaxation of optical nonlinearity in poled glasses

open access: yesSt. Petersburg Polytechnical University Journal: Physics and Mathematics, 2020
The thermal relaxation of second order optical nonlinearity in subsurface layer of a poled soda-lime silicate glass was studied. It is shown that the glass annealing below glass transition temperature leads to full relaxation of the nonlinearity.
Reshetov Ilya   +4 more
doaj   +1 more source

Viscoelastic behavior of carboxyl-terminated (butadiene-co-acrylonitrile)-based composite propellant binder containing polyglycidyl-type bonding agent [PDF]

open access: yesHemijska Industrija, 2016
The influence of tris(2,3-epoxypropyl) isocyanurate as bonding agent on the physico-chemical, viscoelastic and uniaxial tensile mechanical properties of carboxyl-terminated (butadiene-co-acrylonitrile) cured with the polyglycidyl ether of ...
Brzić Saša J.   +5 more
doaj   +1 more source

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

PbSe quantum dots grown in a high-index low-melting-temperature glass for infrared laser applications [PDF]

open access: yes, 2013
PbSe quantum dots (QDs) were grown in high-refractive-index low-melting-temperature lead-phosphate glass. QDs with various sizes ranging from 2 nm to 5.3 nm were grown by controlling the growth parameters, heat-treatment temperature and time.
Leonard, V.   +13 more
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

Polymer Relaxation Time Enhancement at Temperatures above Glass Transition Temperatures Predicted by Idealized Mode-Coupling Theory [PDF]

open access: yes, 2022
The mode-coupling theory of glass transition predicts the relaxation time divergence of glass-forming materials at the crossover temperature, which is approximately 1.2 times the calorimetric glass transition temperature. However, this divergence has not
Risa, Fukase   +5 more
core   +1 more source

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

Characterising the glass transition temperature-structure relationship through a recurrent neural network [PDF]

open access: yes, 2023
Quantitative structure-property relationship (QSPR) is a powerful analytical method to find correlations between the structure of a molecule and its physicochemical properties. The glass transition temperature (Tg) is one of the most reported properties,
Claudia Borredon   +8 more
core   +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

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