Academic literature on the topic 'Glass transition temperature'

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Journal articles on the topic "Glass transition temperature"

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Lebedev, M. P., O. V. Startsev, T. V. Koval, and I. M. Veligodsky. "Multiplet relaxation transitions in fluorurethane coating after climate aging." Doklady Rossijskoj akademii nauk. Himiâ, nauki o materialah. 516, no. 1 (2024): 45–51. http://dx.doi.org/10.31857/s2686953524030068.

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The relaxation transition from a glassy to a highly elastic state (α-transition) of a fluoropolyurethane coating deposited on the surface of VPS-48/778 glass fiber reinforced plastic was studied using the method of dynamic mechanical analysis. It is shown that the relaxation maximum of the dynamic loss modulus in the initial state is a superposition of α1-, α2-, α3-transitions, corresponding, respectively, to transitions from the glassy to highly elastic state of VE-69 enamel and EP-0215 epoxy primer. The transition temperature α1, which is the glass transition temperature of fluoropolyurethan
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CONIGLIO, ANTONIO. "FRACTALS IN THE GLASS TRANSITION." Fractals 04, no. 03 (1996): 349–54. http://dx.doi.org/10.1142/s0218348x96000467.

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The static and fractal properties of the frustrated percolation model are investigated. This model, which contains frustration as an essential ingredient, displays glassy behavior at high density or low temperature and exhibits two transitions: a percolation transition at a temperature Tp with critical exponents of the ferromagnetic s=1/2 state Potts model, and a second transition at a lower temperature Tg in the same universality class of the Ising spin glass model.
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Ouyang, L. F., J. Shen, Y. Huang, Y. H. Sun, H. Y. Bai, and W. H. Wang. "Strong-to-fragile transition in a metallic-glass forming supercooled liquid associated with a liquid–liquid transition." Journal of Applied Physics 133, no. 8 (2023): 085105. http://dx.doi.org/10.1063/5.0137847.

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Liquid–liquid transitions are present in a variety of substances. However, investigating the liquid–liquid transitions occurring in a supercooled liquid is difficult because of the interference from rapid crystallization. Here, we report a strong-to-fragile transition in a Pd32Ni52P16 metallic glass-forming supercooled liquid associated with a liquid–liquid transition. Since the liquid–liquid transition takes place at temperatures smaller than the crystallization temperature, the liquid viscosity can be acquired by creep experiments conducted at temperatures close to the glass transition tempe
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Reis, Ana Karoline dos, Francisco Maciel Monticelli, Roberta Motta Neves, Luis Felipe de Paula Santos, Edson Cocchieri Botelho, and Heitor Luiz Ornaghi Jr. "Creep behavior of polyetherimide semipreg and epoxy prepreg composites: Structure vs. property relationship." Journal of Composite Materials 54, no. 27 (2020): 4121–31. http://dx.doi.org/10.1177/0021998320927774.

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In the present study, the creep behavior of polyetherimide semipreg and epoxy prepreg composites was studied using dynamic mechanical analyzer and focused on structure vs. property relationships in glassy, glass transition, and elastomeric regions. The main contribution to the field is to study pre-impregnated materials concerning creep behavior, mainly based on different analytical models, and microstructure. Two different reinforcements were used (carbon fiber and glass fiber) for each matrix. Findley, Burger, and Weibull analytical models were applied with an excellent fit for the most of t
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Heireche, M. M., L. Heireche, and M. Belhadji. "Thermal stability and glass transition kinetics in GeTeSb glasses by using non-isothermal measurement." Chalcogenide Letters 19, no. 10 (2022): 735–41. http://dx.doi.org/10.15251/cl.2022.1910.735.

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In this paper we have analysed the thermal properties of three different compositions of chalcogenide glasses Ge15Te85-xSbx (x=0.5, 1, 1.5). The samples have been prepared using the melt quenching technique and the characterisation is done using X-ray diffraction. The compositional dependence on properties were studied using Differential Scanning Calorimetry (DSC) analysis using non-isothermal measurement. The glassy sample crystallized by two transition temperatures Tg1 and Tg2.The dependence of glass transition temperature on heating rate has been studied by Lasocka empirical relation and th
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ZHOU, BO, YAN-JU LIU, XIN LAN, JIN-SONG LENG, and SUNG-HO YOON. "A GLASS TRANSITION MODEL FOR SHAPE MEMORY POLYMER AND ITS COMPOSITE." International Journal of Modern Physics B 23, no. 06n07 (2009): 1248–53. http://dx.doi.org/10.1142/s0217979209060762.

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As novel smart materials, shape memory polymer (SMP) and its composite (SMPC) have the ability to regain its original shape after undergoing significant deformation upon heating or other external stimuli such as light, chemic condition and so on. Their special behaviors much depends on the glass transitions due to the increasing of material temperature. Dynamic Mechanical Analysis (DMA) tests are performed on the styrene-based SMP and its carbon fiber fabric reinforced SMPC to investigate their glass transition behaviors. Three glass transition critical temperatures of SMP or SMPC are defined
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Su, Ming Horng, and Hung Chang Chen. "A Molecular Dynamics Investigation into the Cooling Characteristics of Ni and Cu Alloys at High Pressure." Materials Science Forum 505-507 (January 2006): 1093–98. http://dx.doi.org/10.4028/www.scientific.net/msf.505-507.1093.

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This paper studies the phase transitions of Cu and Ni alloys as they cool from melting temperature to room temperature under high-pressure conditions. The interatomic forces acting between the atoms are modeled by the tight-binding potential. Control over the environmental pressure and the cooling temperature is maintained by a canonical ensemble (N, P, T) system. The numerical results confirm that the metal phase transition is influenced significantly by the pressure conditions, even in the case of pure Cu and Ni metals. Three specific transition pathways are identified for the Cu and Ni allo
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Rokade, D.V, and R.H Nandkhile. "Review of Glass transition temperature:Basics & applications in biomedical." Journal of Research & Development 4, no. 14 (2023): 35–42. https://doi.org/10.5281/zenodo.7817242.

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This review addresses the glass transition phenomenon from a kinetic and thermodynamic point of view by presenting the existing models for estimating the glass transition temperature. In this perspective, we summarize the most widely used traditional theories and new approaches to characterize the glass transition phenomenon, including the well-known free volume and configurational entropy models. The glass transition is a key phenomenon that contributes to understanding how external conditions affect physical changes in biomaterials. The glass transition temperature is an important phenomenon
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Verma, Arvind Kumar, Anchal Srivastava, R. K. Shukla, and K. C. Dubey. "Thermal Behavior of Chalcogenide glasses Te90Se10 and Se90Te10." SAMRIDDHI : A Journal of Physical Sciences, Engineering and Technology 7, no. 02 (2015): 113–18. http://dx.doi.org/10.18090/samriddhi.v7i2.8636.

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In the present research work melt quenching method has been adopted to prepare the glassy Te-rich (Te90Se10) and Se-rich (Se90Te10 ) Chalcogenide at a pressure of 10-2 Torr with constant Temperature at 1000°C for 8 hours. Devitrification characteristics of the pure glassy Chalcogenide Te90Se10 and Se90Te90 were investigated by using Differential scanning Calorimetry (DSC) 4000 Perkin Elmer. All the measurements carried out at fixed heating rate 10 0C/min under non-isothermal conditions. The Glass transition temperature (Tg) and other thermal properties were examined by temperature modulated di
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Luque, Patricia, and Antonio Heredia. "Glassy State in Plant Cuticles during Growth." Zeitschrift für Naturforschung C 49, no. 3-4 (1994): 273–75. http://dx.doi.org/10.1515/znc-1994-3-419.

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The existence of a glassy state in isolated tomato fruit cuticles was investigated using differential scanning calorimetry. Tomato fruit cuticular membranes showed a glass transition temperature at -30 °C and an additional second order transition temperature near 30 °C. Changes in these temperatures during fruit growth were also studied
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Dissertations / Theses on the topic "Glass transition temperature"

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Berglund, Peter. "The glass transition in high-temperature superconductors." Thesis, KTH, Skolan för informations- och kommunikationsteknik (ICT), 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-26388.

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In high-temperature superconductors a large region of the magnetic phase diagram is occupied by a vortex phase. This vortex phase can be divided into two regions. At lower temperatures the vortices are in a truly superconducting solid phase. At higher temperatures the solid changes to a dissipative vortex liquid. The transition between the two phases depends of the disorder in the material. If there is no or low disorder the transition is a first order transition but if there are a lot of disorder the vortex solid is called a vortex glass and the transition is a second order transition. To des
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Guan, Qing. "Sodium diffusion in soda-lime-silicate glass around the glass transition temperature /." The Ohio State University, 1991. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487687115926219.

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Zhang, Yuwei. "A study of the measurement of glass transition temperature." Thesis, University of Bristol, 2008. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.508077.

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Hsu, Chuan-liang. "Influence of cooling rate on glass transition temperature and starch retrogradation during low temperature storage /." free to MU campus, to others for purchase, 1998. http://wwwlib.umi.com/cr/mo/fullcit?p9924889.

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Juang, Yi-Je. "Polymer professing and rheological analysis near the glass transition temperature." The Ohio State University, 2001. http://rave.ohiolink.edu/etdc/view?acc_num=osu1302020366.

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Juang, Yi-Je. "Polymer processing and rheological analysis near the glass transition temperature /." The Ohio State University, 2001. http://rave.ohiolink.edu/etdc/view?acc_num=osu1486398195327065.

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Arab, B., A. Shokuhfar, and S. Ebrahimi-Nejad. "Glass Transition Temperature of Cross-Linked Epoxy Polymers: a Molecular Dynamics Study." Thesis, Sumy State University, 2012. http://essuir.sumdu.edu.ua/handle/123456789/35102.

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Recently, epoxy polymers have been used in different applications and research fields due to their superior properties. In this study, the classical molecular dynamics (MD) was used to simulate formation of the epoxy polymer from cross linking of the EPON 828 with DETA curing agent, and calculate the glass transition temperature (Tg) of the material. A series of MD simulations were independently carried out on the cross-linked epoxy polymer in a range of temperatures from 600 K down to 250 K, and the density of the materials was calculated at the end of each run. Through the linear fit
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Singh, Lovejeet. "Effect of Nanoscale Confinement on the Physical Properties of Polymer Thin Films." Diss., Georgia Institute of Technology, 2004. http://hdl.handle.net/1853/4822.

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The behavior of polymeric systems confined into thin films is a situation that has numerous practical consequences. One particular application in which the properties of thin polymer films is becoming crucially important is in the design, formulation, and processing of photoresists for semiconductor microlithography. As devices continue to be scaled down into the nano-regime, the microelectronics industry will ultimately rely upon a molecular understanding of materials for process development. The majority of these devices are now confined in planar geometries; thus, thin films have played
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Mlynarczyk, Paul John. "The nature and determination of the dynamic glass transition temperature in polymeric liquids." Kansas State University, 2014. http://hdl.handle.net/2097/17782.

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Master of Science<br>Department of Chemical Engineering<br>Jennifer L. Anthony<br>A polymer has drastically different physical properties above versus below some characteristic temperature. For this reason, the precise identification of this glass transition temperature, T[subscript]g, is critical in evaluating product feasibility for a given application. The objective of this report is to review the behavior of polymers near their T[subscript]g and assess the capability of predicting T[subscript]g using theoretical and empirical models. It was determined that all polymers begin to undergo st
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Bouscarrat, David. "Time-dependent damage in woven-ply thermoplastic composites above glass transition temperature Influence of time-dependent phenomena on translaminar fracture of woven-ply C/PPS laminates above the glass transition temperature." Thesis, Normandie, 2019. http://www.theses.fr/2019NORMIR29.

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Dans les composites associant matrice organique et renfort fibreux, le couplage entre comportements visqueux (viscoélasticité, viscoplasticité) et mécanismes d’endommagement est très peu étudié à l’échelle mésoscopique et se limite principalement à des analyses post-mortem. Pour des applications aéronautiques à haute température (e.g., nacelle de moteur d’avion), la problématique est encore plus complexe. Notamment au sein de stratifiés à matrice thermoplastique haute performance PPS renforcés par des tissus de fibres de carbone. Ces matériaux sont caractérisés par des zones riches en matrice
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Books on the topic "Glass transition temperature"

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F, Gratz Roy, and United States. National Aeronautics and Space Administration., eds. Structure-to-glass transition temperature relationships in high temperature stable condensation polyimides. National Aeronautics and Space Administration, 1985.

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F, Gratz Roy, and United States. National Aeronautics and Space Administration., eds. Structure-to-glass transition temperature relationships in high temperature stable condensation polyimides. National Aeronautics and Space Administration, 1985.

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Hasling, Peter David. The improvement of the glass transition temperature of Poly(Methyl Methacrylate). University of Manchester, 1995.

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International Workshop on Complex Systems (5th 2007 Sendai-shi, Miyagi-ken, Japan). Complex systems: 5th International Workshop on Complex Systems, Sendai, Japan, 25-28 September 2007. Edited by Tokuyama Michio, Oppenheim Irwin, and Nishiyama Hideya. American Institute of Physics, 2008.

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Grenoble) International Workshop on Dynamics in Confinement (2000 Institute Laue-Langevin. International Workshop on Dynamics in Confinement: Institut Laue-Langevin, Grenoble, France, January 26-29, 2000. EDP Sciences, 2000.

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F, Gratz Roy, and United States. National Aeronautics and Space Administration., eds. 3F condensation polyimides: Review and update. National Aeronautics and Space Administration, 1989.

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J, Liu Andrea, and Nagel Sidney R, eds. Jamming and rheology: Constrained dynamics on microscopic and macroscopic scales. Taylor & Francis, 2001.

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Center, Goddard Space Flight, ed. Thermomechanical properties of polymeric materials and related stresses. National Aeronautics and Space Administration, Goddard Space Flight Center, 1990.

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United States. National Aeronautics and Space Administration., ed. Correlations of norbornenyl crosslinked polymide resin structures with resin thermo-oxidative stability, resin glass transition temperature and composite initial mechanical properties. National Aeronautics and Space Administration, 1988.

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Assignment of the glass transition. ASTM, 1994.

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Book chapters on the topic "Glass transition temperature"

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Mishra, Munmaya, and Biao Duan. "Glass Transition Temperature." In The Essential Handbook of Polymer Terms and Attributes. CRC Press, 2024. http://dx.doi.org/10.1201/9781003161318-66.

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Gooch, Jan W. "Glass-Transition Temperature." In Encyclopedic Dictionary of Polymers. Springer New York, 2011. http://dx.doi.org/10.1007/978-1-4419-6247-8_5521.

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Jansen, Johannes Carolus. "Glass Transition Temperature Depression." In Encyclopedia of Membranes. Springer Berlin Heidelberg, 2015. http://dx.doi.org/10.1007/978-3-642-40872-4_268-1.

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Crompton, T. R. "Glass Transition Temperature and Other Transitions." In Practical Polymer Analysis. Springer US, 1993. http://dx.doi.org/10.1007/978-1-4615-2874-6_12.

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Jansen, Johannes Carolus. "Glass Transition Temperature (T g )." In Encyclopedia of Membranes. Springer Berlin Heidelberg, 2015. http://dx.doi.org/10.1007/978-3-642-40872-4_267-1.

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Kühn, Klaus-Dieter. "Glass Transition Temperature of PMMA cements." In PMMA Cements. Springer Berlin Heidelberg, 2013. http://dx.doi.org/10.1007/978-3-642-41536-4_15.

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Feller, Steve. "Density, Thermal Properties, and the Glass Transition Temperature Ofglasses." In Modern Glass Characterization. John Wiley & Sons, Inc., 2015. http://dx.doi.org/10.1002/9781119051862.ch1.

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Okuma, S., and H. Hirai. "The Vortex-Glass Transition in Low-Temperature Superconductors." In Advances in Superconductivity VIII. Springer Japan, 1996. http://dx.doi.org/10.1007/978-4-431-66871-8_119.

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Lang, X. Y., and Qing Jiang. "Size Effect on Glass Transition Temperature of Nanopolymers." In Solid State Phenomena. Trans Tech Publications Ltd., 2007. http://dx.doi.org/10.4028/3-908451-30-2.1317.

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Tarumi, R., H. Ogi, M. Hirao, T. Ichitsubo, Eiichiro Matsubara, and Junji Saida. "Elastic Properties of Cu-Based Bulk Metallic Glass around Glass Transition Temperature." In THERMEC 2006. Trans Tech Publications Ltd., 2007. http://dx.doi.org/10.4028/0-87849-428-6.1932.

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Conference papers on the topic "Glass transition temperature"

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Popov, Ruslan, Evgeniy Pavlov, Pavel Drobintsev, Sergey Kruglov, and Igor Zaytsev. "A neural network approach to prediction of glass transition temperature." In Fourth International Conference on Optics, Computer Applications, and Materials Science (CMSD-IV 2024), edited by Arthur Gibadullin and Ramazon Abdullozoda. SPIE, 2025. https://doi.org/10.1117/12.3061039.

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Netolický, Petr, Pavel Prosr, and Lukáš Kupka. "Statistical Analysis of the Glass Transition Temperature of a Thermosetting Resins." In 2024 International Conference on Diagnostics in Electrical Engineering (Diagnostika). IEEE, 2024. http://dx.doi.org/10.1109/diagnostika61830.2024.10693888.

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Smith, Doug, and John M. Bronk. "Wet TG: Understanding the Effect of Hot, Distilled Water on the Glass Transition Temperature, Barrier Properties, and Performance of Fusion Bonded Epoxy Coatings." In CONFERENCE 2023. AMPP, 2023. https://doi.org/10.5006/c2023-19470.

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Abstract Fusion-Bonded Epoxy (FBEs) coatings are a durable, dependable approach to corrosion-prevention for both inner-diameter and outer-diameter pipeline coatings. One attribute of an FBE that plays a significant role in the coating performance and operating temperature is the glass transition temperature (Tg). However, when a coating is subject to environmental conditions (water, chemicals, UV ((Ultraviolet) light, elevated temperatures, etc.) the glass transition temperature can be depressed from its applied state. This paper explores how to monitor the glass transition temperature depress
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Weldon, Dwight G. "The Truth about TG – the Measurement and Significance of the Glass Transition Temperature." In Paint and Coatings Expo (PACE) 2006. SSPC, 2006. https://doi.org/10.5006/s2006-00074.

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Abstract The glass transition temperature (Tg) is an important property, as it is a reflection of both the type of resins in a coating and its degree of cure. This paper discusses what Tg is, the measurement of Tg, and its relationship to coating performance. Data is presented which indicates that the performance of a coating may depend on the conditions under which it is cured, such that the exact same coating may perform differently depending on the region of the country in which it is used and the time of year in which it is applied.
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Cho, Jin-Woo, Jonathan King, Dung Quach, et al. "Engineering of vanadium dioxide for reconfigurable optics by combining metal doping and defect engineering." In Bragg Gratings, Photosensitivity, and Poling in Glass Waveguides. Optica Publishing Group, 2024. http://dx.doi.org/10.1364/bgpp.2024.jtu1a.43.

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We demonstrate that metal doping and defect engineering can work in tandem to modify phase-transition temperature and hysteresis of vanadium dioxide films, enabling new opportunities for reconfigurable infrared optics.
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ANJOS, PATRICK QUEIROZ DOS, FELIPE FARDIN GRILLO, MARCELO LUCAS PEREIRA MACHADO, and LUCAS DE ALMEIDA QUARESMA. "MODELING PHYSICAL PROPERTIES OF STEEL SLAG BASED ON NEURAL NETWORKS PART 2: GLASS TRANSITION TEMPERATURE." In 53º Seminário de Aciaria, Fundição e Metalurgia de Não-Ferrosos. Editora Blucher, 2024. http://dx.doi.org/10.5151/2594-5300-40944.

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Zhou, Wenjing, Thomas E. Jeffers, and Owen H. Decker. "Properties of a Novel High Tg FBE Coating for High Temperature Service." In CORROSION 2007. NACE International, 2007. https://doi.org/10.5006/c2007-07688.

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Abstract A novel fusion bonded epoxy (FBE) coating based on brominated epoxy resin with a high glass transition temperature (Tg) was developed for pipeline protection. Properties of this FBE coating related to high temperature service are described in this paper. The new FBE coating has a glass transition temperature greater than 150°C as determined by differential scanning calorimetry (DSC). It performs significantly better in cathodic disbondment (CD) and water soak tests than conventional FBE coatings when tested at 95°C for 28 days. With brominated epoxy resin as the main binder, the new F
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Ramakrishnan, Muni. "Epoxy High Temperature Coatings and Considerations." In CORROSION 2017. NACE International, 2017. https://doi.org/10.5006/c2017-09430.

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Abstract Process industry equipments are subjected to higher temperatures than ever to improve productivity and process efficiency. There is a corresponding need for high temperature coatings to protect the metal surface from corrosion and chemical attack. Epoxy based coatings, due to a combination of adhesion and corrosion resistance and excellent physical and mechanical properties are generally a good choice as coatings to protect structural steel components. Unfortunately, epoxy systems using conventional bisphenol A based resin are generally limited to a service temperature around 80-90 C.
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Rosenstein, Baruch, Dingping Li, and Valery M. Vinokur. "Glass Transition in Vortex Matter." In LOW TEMPERATURE PHYSICS: 24th International Conference on Low Temperature Physics - LT24. AIP, 2006. http://dx.doi.org/10.1063/1.2354981.

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Bel, Golan, and Baruch Rosenstein. "Dynamics of the Vortex-Glass Transition." In LOW TEMPERATURE PHYSICS: 24th International Conference on Low Temperature Physics - LT24. AIP, 2006. http://dx.doi.org/10.1063/1.2354963.

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Reports on the topic "Glass transition temperature"

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Riley, Brian J., and John D. Vienna. Glass Transition Temperature- and Specific Volume- Composition Models for Tellurite Glasses. Office of Scientific and Technical Information (OSTI), 2017. http://dx.doi.org/10.2172/1379447.

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Petrausch, Julius, Daniel Klein, Johannes Zimmer, and Markus Stommel. On the cryo-molding process and subsequent forming processes of biopolymers with low glass transition temperature. Universidad de los Andes, 2024. https://doi.org/10.51573/andes.pps39.ss.bbb.10.

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Bio-based as well as biodegradable polymers are increasingly finding their way into applications such as food packaging. Here, certain biopolymers with a high degree of crystallinity may be of interest due to their superior barrier properties. Conversely, forming processes including high deformations often require an almost amorphous material state to avoid the brittle behavior associated with crystal structures. For some of those biopolymers, the narrow window in which they can be processed has delayed their potential use for packaging applications. In rigid packaging, two-step processes are
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Reams, Josiah T., Andrew J. Guenthner, Kevin R. Lamison, and Joseph M. Mabry. Glass Transition Temperature Measurement for Undercured Cyanate Ester Networks: Challenges, Tips, and Tricks (Briefing Charts). Defense Technical Information Center, 2014. http://dx.doi.org/10.21236/ada610982.

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Clark, E., and M. Marie Kane. EFFECTS OF TRITIUM GAS EXPOSURE ON THE GLASS TRANSITION TEMPERATURE OF EPDM ELASTOMER AND ON THE CONDUCTIVITY OF POLYANILINE. Office of Scientific and Technical Information (OSTI), 2008. http://dx.doi.org/10.2172/950027.

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Morrill, Jason A., Robert E. Jensen, Phillip H. Madison, and Cary F. Chabalowski. Prediction of the Formulation Dependence of the Glass Transition Temperature for Amine-Epoxy Copolymers Using a Quantitative Structure-Property Relationship Based on the AM1 Method. Defense Technical Information Center, 2004. http://dx.doi.org/10.21236/ada420986.

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Magaraphan, Rathanawan. The effects of Ethoxylated Bisphenol A Dimethacrylates content on the thermal and thermo-mechanical properties of chemical crosslinked Polylactic acid. Chulalongkorn University, 2015. https://doi.org/10.58837/chula.res.2015.85.

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Crosslinking structures of PLA can be effectively introduced into PLA by melt mixing using the initiation of dicumyl peroxide (DCP) in the presence of ethoxylated bisphenol A dimethacrylates (Bis−EMAs) which was used as a crosslinking agent. The results showed that the introduction of DCP into PLA above 3 phr increased storage modulus and complex viscosity when compared to PLA. DCP/PLA in the presence of Bis−EMAs content showed the optimum of storage modulus and complex viscosity were at a 5 phr Bis–EMAs loading and decreased as more Bis–EMAs were incorporated into DCP/PLA. The thermal stabili
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Spera, Frank. Mesoscale Molecular Dynamics of Geomaterials: the Glass Transition, Long-Range Structure of Amorphous Silicates and Relation between Structure, Dynamics and Properties of geomaterials at elevated Temperature and Pressure. Office of Scientific and Technical Information (OSTI), 2006. http://dx.doi.org/10.2172/888469.

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Chirachanchai, Suwabun. A New approach for the synthesis of advanced polymers by stereochemically controlled structure using inclusion polymerization technique. Chulalongkorn University, 1999. https://doi.org/10.58837/chula.res.1999.73.

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Abstract:
Inclusion compound of deoxycholic acid (DCA) host molecule and vinyl chloride monomer (VCM) guest molecule is prepared from solvent free DCA crystal via guest insertion technique. Solvent free DCA inclusion compound is achieved from a series of DCA-solvent guest, i.e., ethylacetate, dioxane, o- and p-xylene. X-ray diffraction, FT-IR and thermal analysis results indicate that vinyl chloride monomer is entrapped and stabilized in DCA crystal in solvent free DCA. Guest releasing peak of DCA-VCM is confirmed at ca. 40-60 degree Celsius. Inclusion polymerization is accomplished from the [gamma]-rad
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Rimdusit, Sarawut. Comparative study on flexibility enhancement of polybenzoxazine using epoxy and urethane prepolymers. Chulalongkorn University, 2004. https://doi.org/10.58837/chula.res.2004.73.

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Abstract:
The flexibility of polybenzoxazine (BA) can substantially be improved by alloying with IPDI-based urethane prepolymers (PU) or with flexible epoxy (EPO732). The experimental results, i.e. flexural testing and dynamic mechanical analysis, reveal that flexibility of the rigid polybenzoxazine and the PU or th EPO732 alloys systematically increases with the amount of both tougheners due to the added flexible molecular segments in the polymer hybrids. The curing temperature of the benzoxazine resin at about 225 degree celcius shifts to a higher value when the fraction of BA in both resin mixtures d
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Marra, J. C., and J. R. Harbour. Measurement of the volatility and glass transition temperatures of glasses produced during the DWPF startup test program. Office of Scientific and Technical Information (OSTI), 1995. http://dx.doi.org/10.2172/527436.

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