Academic literature on the topic 'Enthalpy of Relaxation at Tg'

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Journal articles on the topic "Enthalpy of Relaxation at Tg"

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Colmenero, J., A. Alegria, J. M. Barandiaran, and J. J. Del Val. "Sub Tg enthalpy relaxation in glasses." Thermochimica Acta 85 (April 1985): 183–86. http://dx.doi.org/10.1016/0040-6031(85)85560-x.

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Haruyama, Osami, and Sadao Yamada. "Density and Enthalpy Relaxation Behavior in a Bulk Pd40Ni40P20 Metallic Glass." Materials Science Forum 561-565 (October 2007): 1283–86. http://dx.doi.org/10.4028/www.scientific.net/msf.561-565.1283.

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The kinetics of structural relaxation in a Pd40Ni40P20 bulk metallic glass was investigated by the volume relaxation due to density experiments and the enthalpy relaxation due to specific heat experiments. A two-step relaxation process was found in the volume relaxation, while the enthalpy relaxation seemed to be one-step relaxation process with a spectrum of relaxation times. First-step volume relaxation only in as-quenched glass was the process with a spread of relaxation times at lower relaxing temperature, while a Debye-type relaxation behavior was observed at higher temperature near Tg and in pre-annealed glass. The comparison of the kinetics of volume and enthalpy relaxations at the same temperature showed a disagreement with the prediction of free volume theory.
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Androsch, René, Katalee Jariyavidyanont, and Christoph Schick. "Enthalpy Relaxation of Polyamide 11 of Different Morphology Far Below the Glass Transition Temperature." Entropy 21, no. 10 (2019): 984. http://dx.doi.org/10.3390/e21100984.

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Polyamide 11 (PA 11) samples of different supermolecular structure, including the crystal-free glass and semi-crystalline PA 11 of largely different semi-crystalline morphology, were prepared by fast scanning chip calorimetry (FSC). These samples were then annealed at different temperatures well below the glass transition temperature Tg. The main purpose of the low-temperature annealing experiments was the calorimetric detection of mobility of chain segments at temperatures as low as −40 °C (≈Tg − 80 K) where still excellent impact resistance is predicted. It was found that annealing PA 11 at such low temperature, regardless the thermal history and supermolecular structure including crystallinity as well as crystal shape and size, permits distinct enthalpy relaxation at rather short time scale with the structural changes reverting on subsequent heating as detected with pronounced sub-Tg-enthalpy-recovery peaks. The main glass transition, associated to large-amplitude segmental mobility, as well as relaxations at temperatures only slightly below Tg are even more distinctly sensitive to the crystal morphology. In contrast to spherulitically grown lamellar crystals, presence of high-specific-surface area nanometer-sized ordered domains causes a shift of the glass transition temperature of the amorphous phase to higher temperature, proving stronger coupling of ordered and amorphous phases than in case of lamellae. In addition, the increased coupling of the crystalline and amorphous phases slows down the cooperative rearrangements on annealing the glass slightly below Tg. The performed study contributes to further understanding of the spectrum of structural relaxations in PA 11 including the effect of presence of crystals. Enthalpy relaxation and consequently the reduction of entropy at temperatures slightly below Tg strongly depends on the semi-crystalline morphology, while an only minor effect is seen on low-temperature annealing at Tg − 80 K, possibly indicating different molecular mechanisms for the processes occurring in both temperature ranges. The low-temperature process even seems proceeding in the crystalline fraction of the material.
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Goodwin, A. A., and M. M. Browne. "The Enthalpic Relaxation of Amorphous Poly(Aryl Ether Ketone)s." High Performance Polymers 9, no. 1 (1997): 1–15. http://dx.doi.org/10.1088/0954-0083/9/1/001.

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The development of physical aging in four amorphous poly(aryl ether ketone)s at temperatures below the glass transition temperature, Tg, was studied using differential scanning calorimetry (DSC). The change in enthalpy lost on aging, determined by scanning through Tg, was used to determine the kinetics of the aging process through fitting to the Cowie–Ferguson model. The kinetics of aging were found to depend on the ketone–ether ratio as well as the substitution pattern of the polymers. The maximum enthalpy lost at equilibrium, Δ H∞, was found to be a linear function of the change in heat capacity at Tg, Δ Cp(Tg), and the degree of supercooling, Δ T. A composite curve incorporating Tg values from physical aging and dynamic mechanical studies, covering 15 decades, could be fitted to the Volger–Fulcher equation and demonstrated that physical aging is an extension of the glass forming process.
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Qiao, Ang, Pengpeng Wang, Haizheng Tao, and Yuanzheng Yue. "Sub-Tg enthalpy relaxation in milled and quenched As2S3 glasses." Journal of Non-Crystalline Solids 500 (November 2018): 225–30. http://dx.doi.org/10.1016/j.jnoncrysol.2018.08.003.

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Kuo, Sen M., and E. M. Woo. "Sub-Tg molecular relaxation and enthalpy relaxation behavior in amorphous glassy poly(ether imide)." Journal of Polymer Research 4, no. 4 (1997): 213–19. http://dx.doi.org/10.1007/s10965-006-0027-x.

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Gulbiten, Ozgur, John C. Mauro, and Pierre Lucas. "Relaxation of enthalpy fluctuations during sub-Tg annealing of glassy selenium." Journal of Chemical Physics 138, no. 24 (2013): 244504. http://dx.doi.org/10.1063/1.4811488.

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Liu, Yao, Cong De Qiao, Jin Shui Yao, and Wen Ke Yang. "Relaxation Behaviors of Polystyrene during Physical Aging." Advanced Materials Research 557-559 (July 2012): 1479–82. http://dx.doi.org/10.4028/www.scientific.net/amr.557-559.1479.

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The relaxation behaviors of PS below Tg and its variation trend along with aging time were studied by DSC, fluorescence spectrum and XRD. On the basis of DSC results, the kinetics of the volume and enthalpy relaxation process were analyzed, and the influence of the aging time on the relaxation behaviors were discussed. The results of fluorescence spectrum and XRD indicated the presence of the rearrangement of polymer chains in the physical aging of polystyrene.
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Jensen, Martin, and Johnny Jakobsen. "Enthalpy relaxation and post shrinkage of sub and sup-Tg cured epoxy." Journal of Non-Crystalline Solids 498 (October 2018): 60–63. http://dx.doi.org/10.1016/j.jnoncrysol.2018.06.001.

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Mitrofanov, Yu P., G. V. Afonin, A. S. Makarov, N. P. Kobelev, and V. A. Khonik. "A new understanding of the sub-Tg enthalpy relaxation in metallic glasses." Intermetallics 101 (October 2018): 116–22. http://dx.doi.org/10.1016/j.intermet.2018.07.015.

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Dissertations / Theses on the topic "Enthalpy of Relaxation at Tg"

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GOGI, VAMSHI KIRAN. "New Insights into Topological Phases in (Na2O)x(P2O5)100-x glasses from Enthalpy of Relaxation at Tg from Modulated-DSC and LO- and TO- mode frequency splitting from IR reflectance." University of Cincinnati / OhioLINK, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1593268824449037.

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Chbeir, Ralph. "Correlating Melt Dynamics with Topological Phases of Homogeneous Chalcogenide- and Modified Oxide- Glasses Using Raman Scattering, Infra-Red Spectroscopy, Modulated-Differential Scanning Calorimetry and Volumetric Experiments." University of Cincinnati / OhioLINK, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1573224465185235.

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Bhadauriya, Sonal. "Relaxation Behaviour of Patterned Composite Polymer Surfaces and Underlying Compensation Phenomenon." University of Akron / OhioLINK, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=akron1577984063649952.

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Robertson, Christopher G. "Physical Aging of Miscible Polymer Blends." Diss., Virginia Tech, 1999. http://hdl.handle.net/10919/40427.

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Physical aging measurements were performed on various polymeric glasses with the overriding goal of developing a better molecular picture of the nonequilibrium glassy state. To this end, aging-induced changes in mechanical properties and in the thermodynamic state (volume and enthalpy) were assessed for two different miscible polymer blends as a function of both composition and aging temperature. This investigation considered the physical aging behavior of blends containing atactic polystyrene (a-PS) and poly(2,6-dimethyl-1,4-phenylene oxide) (PPO) as well as mixtures of poly(methyl methacrylate) (PMMA) and poly(styrene-co-acrylonitrile) (SAN). Substantial attractive chemical interactions are characteristic of a-PS/PPO blends but are absent in PMMA/SAN blends. The distinct nature of interactions for these two blends resulted in differences 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 the two systems. In addition, a general relationship was uncovered which linked structural relaxation rates for amorphous polymers to their respective segmental relaxation characteristics (glass transition cooperativity or fragility), which in turn are well understood from a molecular standpoint. This work, therefore, established a basis for comprehending glassy state volume and enthalpy relaxation rates based upon molecular characteristics. Developing an understanding of the connection between the evolving thermodynamic state and mechanical property changes fared less well. The fact that the thermodynamic and mechanical properties can have very different relaxation time responses governing their changes in the nonequilibrium glassy state was clearly evident in an extensive study of the physical aging characteristics of an amorphous polyimide material. For some materials, interpretation of mechanical aging behavior was obscured by thermorheological complexity arising due to overlap of a secondary relaxation with the main chain softening dispersion.<br>Ph. D.
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Hornung, Polyanna Silveira. "EFEITO DA RADIAÇÃO ULTRAVIOLETA NA OXIDAÇÃO INDUZIDA DE AMIDO DE MANDIOCA." UNIVERSIDADE ESTADUAL DE PONTA GROSSA, 2014. http://tede2.uepg.br/jspui/handle/prefix/712.

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Made available in DSpace on 2017-07-21T18:53:22Z (GMT). No. of bitstreams: 1 Polyana Silveia Hornung.pdf: 3542822 bytes, checksum: 8024b84822411cfd8c223c8836b7d0d8 (MD5) Previous issue date: 2014-08-06<br>Coordenação de Aperfeiçoamento de Pessoal de Nível Superior<br>The starch in its native form does not always have the appropriate physicochemical properties for processing. The chemical and physical changes has been widely studied in order to promote change in these characteristics. The work aimed to study the effects of ultraviolet radiation-induced oxidation of cassava starch. Cassava starch samples were oxidized with sodium hypochlorite and hydrogen peroxide in combination with exposure to ultraviolet light for 1 hour action. The samples were analyzed by Thermogravimetry and Derivative Thermogravimetry (TG / DTG), Differential scanning calorimetry (DSC), Viscoamilograph Analysis (RVA), X Ray Diffraction Powder, Non-contact Atomic Force Microscopy method (NC-AFM) and Color characteristics were analyzed by Reflectance Spectrophotometry. The modified samples showed higher thermal stability compared to the sample of cassava starch unmodified. The results of DSC of the samples modified with H2O2 showed little influence on the enthalpy of gelatinisation, but the modification with sodium hypochlorite considerably decreased the enthalpy of gelatinisation. Similarly, there was a decrease of the peak viscosity and final viscosity and setback, demonstrating the high degree of modification which occurred by treatment with NaClO. The micro-images revealed a significant increase of depressions and projections for the samples treated with NaClO and significant changes were obtained in the mean diameter of the granules of treated samples with H2O2. The two oxidation processes altered the relative crystallinity of the starch samples. The Colorimetry confirmed the bleaching action of NaClO and the mild action of H2O2. Therefore, the two-way modification had effects on the properties of cassava starch.<br>Os amidos podem ser provenientes de diferentes fontes botânicas mas, em sua forma nativa possuem algumas propriedades que nem sempre são adequadas às necessidades industriais.Assim, muitas alterações podem ser realizadas de diferentes maneiras, cujas propriedades físico-químicas podem tornar-se adequadas para o seu uso. As modificações químicas e físicas vem sendo muito estudadas a fim de promover a alteração destas características. O presente trabalho teve como objetivo estudar os efeitos da radiação ultravioleta na oxidação induzida de amido de mandioca. Amostras de amido de mandioca foram oxidadas com hipoclorito de sódio e peróxido de hidrogênio em ação combinada à exposição à luz ultravioleta por 1 hora. As amostras foram analisadas por Termogravimetria e Termogravimetria Derivada (TG/DTG), Calorimetria Exploratória Diferencial (DSC), Análise Viscoamilográfica (RVA), Difração de raios X pelo método do pó, Microscopia de Força Atômica pelo método não contato (NC-AFM) e as características de Cor foram analisadas por Espectrofotometria de Refletância. As amostras modificadas demonstraram maior estabilidade térmica em relação à amostra de amido de mandioca não modificada. Os resultados de DSC das amostras modificadas por H2O2 demostraram pouca influência sobre a entalpia de gelatinização, mas a para a modificação por hipoclorito de sódio diminuiu significativamente a. Da mesma forma, ocorreu a diminuição dos valores de viscosidade de pico e viscosidade final e setback, demonstrando o alto grau de modificação ocorrida pelo tratamento por NaClO. As micro-imagens revelaram um aumento significativo das depressões e saliências para as amostras tratadas por NaClO e alterações expressivas foram obtidas no diâmetro médio dos grânulos das amostras tradadas por H2O2. Os dois processos oxidativos alteram a cristalinidade relativa das amostras de amido. A colorimetria confirmou a ação de branqueamento do NaClO e a ação branda do H2O2. Portanto, as duas vias de modificação exerceram efeitos sobre as propriedades do amido de mandioca.
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Dash, Shreeram J. "Aging of Selenium glass probed by MDSC and Raman Scattering Experiments: Growth of inter-chain structural correlations leading to network compaction." University of Cincinnati / OhioLINK, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1490354472387536.

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Valle, Orero Jessica. "Dynamics and thermal behaviour of films of oriented DNA fibres investigated using neutron scattering and calorimetry techniques." Phd thesis, Ecole normale supérieure de lyon - ENS LYON, 2012. http://tel.archives-ouvertes.fr/tel-00734670.

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The majority of structural studies on DNA have been carried out using fibre diffraction, while studies of its dynamics and thermal behaviour have been mainly performed in solution. When the DNA double helix is heated, it exhibits local separation of the two strands that grow in size with temperature and lead to their complete separation. This work has investigated various aspects of this phenomenon. The experiments reported in this thesis were carried out on films of oriented fibres of DNA prepared with the Wet Spinning Apparatus. Thus, sample preparation and characterisation are essential parts of the research. The structures of two forms of DNA, A and B, have been explored as a function of relative humidity at fixed ionic conditions. A method to eliminate traces of ever-present B-form contamination in A-form samples was established. The high orientation of the DNA molecules within the samples allowed us to investigate dynamical fluctuations and the melting transition of DNA using neutron scattering, which can provide the spatial information crucial to understand a phase transition, probing the static correlation length along the molecule as a function of temperature. The transition has been investigated for A and B-forms in order to understand its dependence on molecular configuration.Furthermore, after the first melting, denatured DNA films show typical glass behaviour. Their thermal relaxation has been explored using calorimetry.Neutron and X-ray inelastic scattering (INS and IXS) were used in the past to measure longitudinal phonons in fibre DNA, and the results shown disagreement. Recent INS measurements supported with phonon simulations have been crucial to understand the different dispersion curves reported to date. Experiments using INS and IXS have been carried out to continue with this investigation. Attempts to observe the transverse fluctuations associated to the thermal denaturing of DNA, never experimentally investigated before, have been made.
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Shields, Bradley J. "Single-Phase Turbulent Enthalpy Transport." 2014. https://scholarworks.umass.edu/masters_theses_2/113.

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Vapor generation is central to the flow dynamics within fuel injector nozzles. Because the degree of atomization affects engine emissions and spray characteristics, quantification of phase change within diesel fuel injectors is a topic of design interest. Within the nozzle, the large pressure gradient between the upstream and downstream plena induce large velocities, creating separation and further pressure drop at the inlet corner. When local pressure in the throat drops below the fluid vapor pressure, phase change can occur with sufficient time. At the elevated temperatures present in diesel engines, this process can be dependent upon the degree of superheat, motivating the modeling of heat transfer from the wall. By modeling cavitation and flash boiling phenomena as a departure from equilibrium conditions, the HRMFoam model accurately reproduces canonical adiabatic flows. An experimentally determined relaxation time controls the rate at which vapor is generated, and includes model constants tuned for water and a diesel fuel surrogate. The model is shown to perform well for several benchmark experimental cases, including the work of Reitz, Lichtarowicz, and Nurick. With the implementation of the Farve-averaged energy equation, the present work examines and validates the transport of enthalpy through the fixed heat flux and fixed wall temperature boundary conditions. The pipe heat transfer experiments of Boelter and Allen are replicated using the kEpsilon, Realizable kEpsilon, and Spalart-Allmaras models. With proper turbulence model selection, Allen's heat transfer coefficient data is reproduced within 2.9%. Best-case bulk temperature rise prediction is within 0.05%. Boelter's bulk temperature rise is reproduced within 16.7%. Turbulent diffusivity is shown to determine radial enthalpy distribution.
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Kamath, Aravind Miyar. "Glass Forming Ability and Relaxation Behavior of Zr Based Metallic Glasses." Thesis, 2011. http://hdl.handle.net/1969.1/ETD-TAMU-2011-05-9044.

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Metallic glasses can be considered for many commercial applications because of the higher mechanical strength, corrosion and wear resistance when compared to crystalline materials. To consider them for novel applications, the challenge of preparing metallic glasses from the liquid melt phase and how the properties of metallic glasses change due to relaxation need to be understood better. The glass forming ability (GFA) with variation in composition and inclusion of different alloying elements was studied by using thermal techniques to determine important GFA indicators for Zr-based bulk metallic glasses (BMG). The effect of alloying elements, annealing temperature and annealing time on the thermal and structural relaxation of the BMGs was studied by using an annealing induced relaxation approach. The thermal relaxation was studied by measuring specific heat of the samples using differential scanning calorimeter (DSC) and calculating the enthalpy recovery on reheating in the BMG samples. The structural relaxation was also studied by using extended X-ray absorption fine structure (EXAFS) technique on the as-obtained and relaxed samples. The effects of alloying elements and annealing on electrical resistance were studied by using a two point probe. From the study, it was found that the currently used GFA indicators are inadequate to fully capture and identify the best GFA BMGs. The fragility (beta) of the melt is a new criterion that has been proposed to measure and analyze GFA. The enthalpy relaxation of Zrbased BMGs was found to follow a stretched exponential function, and the parameters obtained showed the BMGs used in the current study are strong glass formers. EXAFS studies showed variations in the structure of BMGs with changes in alloying elements. Furthermore, alloying elements were found to have an effect on the structure of the relaxed BMGs. The resistance of BMGs was found to decrease with relaxation which can be attributed to short range order on annealing.
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Book chapters on the topic "Enthalpy of Relaxation at Tg"

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Russell, Geoffrey A., and W. Eugene Skiens. "Enthalpy Relaxation in UV-Cured Epoxy Coatings." In ACS Symposium Series. American Chemical Society, 1990. http://dx.doi.org/10.1021/bk-1990-0417.ch021.

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Bhandari, B. R., and R. W. Hartel. "Kinetics of Enthalpy Relaxation in Corn Syrup-Sucrose Mixtures." In Water Properties in Food, Health, Pharmaceutical and Biological Systems: ISOPOW 10. Wiley-Blackwell, 2010. http://dx.doi.org/10.1002/9780470958193.ch31.

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Tsuji, K., K. Kawai, M. Watanabe, and T. Suzuki. "Nonenzymatic Browning Reaction and Enthalpy Relaxation of Glassy Foods." In Water Properties in Food, Health, Pharmaceutical and Biological Systems: ISOPOW 10. Wiley-Blackwell, 2010. http://dx.doi.org/10.1002/9780470958193.ch34.

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Sohel, Amir, Abhijit Mondal, and Asmita Sengupta. "Physical Aging in PS-MWCNT Composite: An Enthalpy Relaxation Study." In Nanostructured Smart Materials. Apple Academic Press, 2021. http://dx.doi.org/10.1201/9781003130468-15.

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Haruyama, Osami, Hiroyuki Sawada, Kazuhiro Yoshikawa, Tohru Kawamata, Yoshihiko Yokoyama, and Kazumasa Sugiyama. "Static Measurements for α- and β-Relaxation Below Tg in a Zr55Cu30Ni5Al10BMG." In TMS2013 Supplemental Proceedings. John Wiley & Sons, Inc., 2013. http://dx.doi.org/10.1002/9781118663547.ch35.

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Syamaladevi, R. M., G. V. Barbosa-Cánovas, S. J. Schmidt, and S. S. Sablani. "Molecular Weight Effects on Enthalpy Relaxation and Fragility of Amorphous Carbohydrates." In Food Engineering Series. Springer New York, 2015. http://dx.doi.org/10.1007/978-1-4939-2578-0_13.

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Haque, E., and B. R. Bhandari. "Effects of Protein Conformational Modifications, Enthalpy Relaxation, and Interaction with Water on the Solubility of Milk Protein Concentrate Powder." In Food Engineering Series. Springer New York, 2015. http://dx.doi.org/10.1007/978-1-4939-2578-0_38.

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Haruyama, Osami, and Sadao Yamada. "Density and Enthalpy Relaxation Behavior in a Bulk Pd40Ni40P20 Metallic Glass." In Materials Science Forum. Trans Tech Publications Ltd., 2007. http://dx.doi.org/10.4028/0-87849-462-6.1283.

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SUZUKI, Ryosuke O., Ryusuke KITA, and Paul Hideo SHINGU. "KINETICS OF ENTHALPY RELAXATION IN METALLIC GLASSES." In Rapidly Quenched Metals. Elsevier, 1985. http://dx.doi.org/10.1016/b978-0-444-86939-5.50156-1.

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"Enthalpy Relaxation in Freeze-Concentrated Sucrose–Water Glasses." In Water Properties of Food, Pharmaceutical, and Biological Materials. CRC Press, 2006. http://dx.doi.org/10.1201/9781420001181-63.

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Conference papers on the topic "Enthalpy of Relaxation at Tg"

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Green, James, Alex Fowler, Mehmet Toner, and Sankha Bhowmick. "A Study of Enthalpic Relaxation of Trehalose-Water Glasses." In ASME 2004 International Mechanical Engineering Congress and Exposition. ASMEDC, 2004. http://dx.doi.org/10.1115/imece2004-59747.

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Trehalose has been shown to be an effective biostabilizer, one explanation for this is that it can easily form glass at near ambient temperatures. Enthalpic relaxation is a physical aging process that occurs in glasses held near, but below, their Tg and is an indicator of the amount of molecular mobility of a particular glass. Since molecular mobility is key to long-term storage biologics in a glassy matrix this study was developed to gain a fundamental understanding of the enthalpic relaxation kinetics of trehalose-water glasses. Through the use of DSC, enthalpic peaks were quantitatively measured for water-trehalose glasses as a function of aging time and aging temperature for three different mass percentages (Mwater/Mtrehalose%, ~0%, ~1.5%, &amp; ~10%). From this data the total amount of relaxation and the relaxation time have been determined using the Cowie-Ferguson equation. Understanding the effects of water on enthalpic relaxation kinetics will help lead to optimized drying protocols and storage parameters.
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Martone, A., L. Grassia, M. Zarrelli, M. Giordano, and A. D’Amore. "Enthalpy relaxation of an epoxy matrix/carbon nanotubes." In 6TH INTERNATIONAL CONFERENCE ON TIMES OF POLYMERS (TOP) AND COMPOSITES. AIP, 2012. http://dx.doi.org/10.1063/1.4738492.

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Zhou, W., Y. Liu, and B. Bhandari. "Glass Transition and Enthalpy Relaxation of Sucrose - Glucose Syrup Solid System." In 13th World Congress of Food Science & Technology. EDP Sciences, 2006. http://dx.doi.org/10.1051/iufost:20060040.

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Balitska, V., R. Golovchak, and O. Shpotyuk. "On the kinetics description of below-Tg structural relaxation in network glass formers." In 2012 IEEE International Conference on Oxide Materials for Electronic Engineering (OMEE). IEEE, 2012. http://dx.doi.org/10.1109/omee.2012.6464788.

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Bryzgalov, A. I. "RELAXATION PROCESSES BEHIND THE SHOCK WAVE IN AIR." In 9TH INTERNATIONAL SYMPOSIUM ON NONEQUILIBRIUM PROCESSES, PLASMA, COMBUSTION, AND ATMOSPHERIC PHENOMENA. TORUS PRESS, 2020. http://dx.doi.org/10.30826/nepcap9a-4610.30826/nepcap9a-46.

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This work is relevant to numerical simulation of atmospheric entry phase of space missions and in high enthalpy facilities producting flow conditions close to flight conditions. Such flows are featured by low pressure and high temperature, which induces thermal and chemical nonequilibrium, while calculations with equilibrium assumption give both qualitative and quantitative errors.
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Deepika, N. S. Saxena, and Kananbala Sharma. "Heat Capacity and Enthalpy Relaxation in Ge1−xSnxSe2.5 (x = 0.3, 0.5) Glassy Alloys." In THERMOPHYSICAL PROPERTIES OF MATERIALS AND DEVICES: IVth National Conference on Thermophysical Properties ‐ NCTP'07. American Institute of Physics, 2010. http://dx.doi.org/10.1063/1.3466576.

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Hoffmann, Hans J., Werner W. Jochs, and Norbert M. Neuroth. "Relaxation Phenomena Of The Refractive Index Caused By Thermal Treatment Of Optical Glasses Below Tg." In 32nd Annual Technical Symposium, edited by Alexander J. Marker III. SPIE, 1989. http://dx.doi.org/10.1117/12.948171.

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Jung, D. H., Y. H. Jeong, and K. Takeda. "Short range order, glass transition, and enthalpy relaxation of a binary mixture (glycerol+propanediol)." In The 8th tohwa university international symposium on slow dynamics in complex systems. AIP, 1999. http://dx.doi.org/10.1063/1.58530.

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Takahashi, Masato. "Enthalpy relaxation of homogeneous polystyrene/poly(2-chloro styrene) blends measured by differential scanning calorimetry." In Third tohwa university international conference on statistical physics. AIP, 2000. http://dx.doi.org/10.1063/1.1291545.

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Maus, I., H. Preu, M. Niessner, et al. "Challenges of viscoelastic characterization of low TG epoxy based adhesives for automotive applications in DMA and relaxation experiments." In 2014 15th International Conference on Thermal, Mechanical and Multi-Physics Simulation and Experiments in Microelectronics and Microsystems (EuroSimE). IEEE, 2014. http://dx.doi.org/10.1109/eurosime.2014.6813833.

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