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Showing 1 to 20 of 39 for “"Structural relaxation"”.
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Structural relaxation of binary food systems
This project advanced the study of structural relaxation into two binary food systems. It studied the effect of anti-plasticizer addition (i.e. addition of glucose syrup solid and addition of starch) on structural relaxation of sucrose based amorphous mixtures. It also studied the effect of …
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Structural relaxation and penetrant diffusion in polymer networks
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2025-02-04 without embargo terms
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Influence of Structural Relaxation Upon the Low Temperature Properties of Metallic Glasses
We have investigated the low temperature properties of metallic glasses. We find that below 1K, the thermal conductivity of metallic glasses (Fe(,40)Ni(,40)P(,14)B(,6), Pd(,77.5)Si(,16.5)Cu(,6) and Zr(,3)Rh) is similar to that of the large class of amorphous materials previously investigated, …
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Influence of structural relaxation upon the low temperature proerties of metallic glasses
Submitted by Carolyn Mead (cmead2@illinois.edu) on 2011-06-08T16:44:23Z No. of bitstreams: 1 1983_cotts.pdf: 3879140 bytes, checksum: 988c469465bd83fbdeae4baadb12eef6 (MD5)
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Thermal expansion, heat capacity and structural relaxation measurements in the glass transition region.
Massachusetts Institute of Technology. Dept. of Metallurgy. Thesis. 1966. Sc.D.
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The influence of structural relaxation upon the low-temperature thermal conductivity of ancient natural glasses
… properties of glasses are affected by the structural relaxation which occurs in a glass sample in order to move that sample toward the equilibrium configuration for its current temperature. Investigations of structural relaxation in glasses show that relaxation processes involve a broad …
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Impulsive stimulated light scattering from glass-forming liquids : structural relaxation, orientational relaxation and testing of mode coupling theory
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Chemistry, 1996.
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Role of strong attractive forces on the dynamics and mechanics of glass and gel forming soft materials
… these systems for local and chemistry-specific relaxation processes at the level of forces that relates interactions, structure, dynamics and mechanics. A major specific interest is how strong short-range attractive interactions that induce long-lived physical bonds impact activated dynamics, …
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Healing-on-Demand Polymer Composites Based on Shape Memory Polyurethane Fibers and Polymeric Artificial Muscles
… used for industrial applications that could heal structural-length scale damage and leaking autonomously, repeatedly, efficiently, timely, and molecularly. Firstly, the structural relaxation behavior of shape memory polyurethane (SMPU) fiber was studied by theoretical analysis and experimental …
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Analyses and predictions of ultrasound interactions with model biomembrane systems via two-state transition model
… 5.0 MHz was employed to investigate biomembrane structural relaxation kinetics via absorption and velocity dispersion spectroscopy. The multilamellar vesicles utilized in this investigation were either composed of pure phospholipids or mixtures of phospholipids and small molar fractions of …
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An investigation of fatigue in an Fe-based metallic glass by nanoindentation
… and free volume, and analysis suggests that structural relaxation during annealing serves to inhibit material strengthening by fatigue in metallic glasses, while cycling in the as-received sample likely strengthens due to a local effect.
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Thermal and morphological analysis of collagen-plla electrospun blends
… the in-depth analysis of the appearance of the structural relaxation occurring at the glass transition temperature of PLLA in the collagen-PLLA blended electrospun mats. It is speculated that occurrence of this thermal event is more prominent in PLLA with high molecular weight due to the …
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Studies of kinetic glass transition in a triblock copolymer micellar system
… in crystallization. The characteristic time for structural relaxation increases rapidly and at a certain point, it becomes comparable to the duration of experiment time scale. At this point, the liquid is being arrested structurally. We define this structurally arrested matter a glass. …
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On Local Order in Particle Packings
… of $E$ is used to characterize short-time structural relaxation in Kob-Andersen-type mixtures. This variance is found to be nearly composition independent at the onset temperature of glassy dynamics. It is also observed to behave like a heuristic measure of glass-forming ability, which …
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Ab initio study of magnetic effects at material interfaces .
… show that magnetism, in addition to driving structural relaxation, also greatly enhances intergranular cohesion in iron. To explore the effects of point defects at material interfaces, we present an extensive study of non-magnetic Molybdenum grain boundaries. This trend study which is carried …
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Atomistic simulation of strength and deformation of ceramic materials
… and computational algorithms to probe the microstructural effects in crystalline, amorphous, and nanocrystalline media. Specific issues of a materials property or mechanics of materials nature are addressed in the context of characterizing the limits to strength and mechanisms of structural …
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Characterization of gold black and its application in un-cooled infrared detectors
… with aging at room temperature. Electrical relaxation model was applied to calculate structural relaxation time in the coatings prepared with different porosities. Interestingly, with aging, absorptance of the coatings improved, which is explained using conductivity form of Bergman …
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Physical Aging of Miscible Polymer Blends
… in the compositional dependence of secondary relaxation intensity, segmental cooperativity which dictates glass formation kinetics, and density (prior to aging). The variation of volume relaxation rate with aging temperature and composition was interpreted based upon these characteristics for …
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Conformational relaxation and kinetic hole-burning in sperm whale myoglobin
… kinetic hole-burning and conformational relaxation. Kinetic hole-burning results from different parts of an inhomogeneously broadened spectrum rebinding with different rates. Conformational relaxation is a change in the protein structure toward the deoxy structure. An experiment by …
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EFFECTS OF STRUCTURAL MODIFICATION ON RELIABILITY OF NANOSCALE NITRIDE HEMTs
… into the semiconducting barrier layer and structural modifications (defect ii formation) leading to diminished polarization induced charge density and output current. Since the dynamical system to be studied is complex, chaotic (where the evolution rule is guided by atomicity of the …
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