Relevant bibliographies by topics / Fluoride glasses Thermal properties

Academic literature on the topic 'Fluoride glasses Thermal properties'

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Published: 10 December 2022
Last updated: 30 January 2023

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Journal articles on the topic "Fluoride glasses Thermal properties"

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Melnikov, P., R. Rolim, A. Delben, J. R. Delben, A. C. Souza, and A. E. Job. "Thermal properties of fluoride glasses and their gel precursors." Journal of Thermal Analysis and Calorimetry 75, no. 1 (2004): 87–93. http://dx.doi.org/10.1023/b:jtan.0000017331.26326.54.

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Baró, M. D., A. Otero, S. Suriñach, A. Jha, S. Jordery, M. Poulain, A. Soufiane, D. W. Hewak, E. R. Taylor, and D. N. Payne. "Thermal properties and crystallization kinetics of new fluoride glasses." Materials Science and Engineering: A 179-180 (May 1994): 303–8. http://dx.doi.org/10.1016/0921-5093(94)90215-1.

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Rodríguez Chialanza, Mauricio, Germán Azcune, Heinkel Bentos Pereira, and Ricardo Faccio. "New Perspective on Thermally Stimulated Luminescence and Crystallization of Barium Borate Oxyfluoride Glasses." Crystals 11, no. 7 (June 26, 2021): 745. http://dx.doi.org/10.3390/cryst11070745.

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The demand for modern materials, especially glasses, used in different applications, such as radiation sensors and spectral converters, requires a detailed study of their properties. The incorporation of fluoride compounds in borate glasses and their crystallization at the nanometric scale allows the properties of these materials to be further enhanced. Although many works showed improvements in some of these properties, some critical aspects, such as the crystallization mechanism and the role of the fluorine phase, need more investigation. We worked with xNaF (100 − x)BaO·2B2O3 glasses with x = 0, 5, 10, 15, 20, 25, 30, and 35% (in mol) to increase the knowledge in this field. The structural modifications and the thermally stimulated luminescence of the glasses were studied, and their crystallization was analyzed by thermal analysis and X-ray diffraction. A continuous trap distribution was found, which was responsible for its very good luminescent signal, especially in glasses with 20% NaF. By selecting a suitable amount of NaF, it is possible to obtain nanocrystals of BaF2. These promising results we reached show the applicability of these materials.
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Iqbal, Tariq, Mahmoud R. Shahriari, Glenn Merberg, and George H. Sigel. "Synthesis, characterization, and potential application of highly chemically durable glasses based on AlF3." Journal of Materials Research 6, no. 2 (February 1991): 401–6. http://dx.doi.org/10.1557/jmr.1991.0401.

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Fluorozirconate glasses are stable with respect to devitrification but have poor chemical durability and only fair mechanical strength. AlF3-based glasses with improved chemical durability and enhanced mechanical strength are reported here. The optical, mechanical, and thermal properties of these glasses are contrasted to the more familiar ZBLAN composition. The infrared edge of these glasses lies at shorter wavelengths than ZrF4-based glasses, but aluminum fluoride glasses offer some interesting opportunities for short-range IR fiber applications such as sensing, remote spectroscopy, and laser power propagation.
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Liu, Shujiang, and Anxian Lu. "Physical and Spectroscopic Properties of Yb3+-Doped Fluorophosphate Laser Glasses." Laser Chemistry 2008 (September 25, 2008): 1–6. http://dx.doi.org/10.1155/2008/656490.

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The physical properties including refractive index, Abbe number, nonlinear refractive index, microhardness and thermal expansion coefficient, and spectroscopic properties of Yb3+-doped fluorophosphate laser glasses were investigated. The results show that due to the addition of fluoride, mechanical and thermal properties are promoted, emission cross-section σemi is also greatly enhanced. The largest gain coefficient σemi·τm (0.824 pm2·ms) can be obtained with the minimum pump intensity Imin (1.112 kw/cm2). This kind of Yb3+-doped fluorophosphate glass is an excellent candidate material for Yb3+-doped host for high-power generation.
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Lakshminarayana, G., Eric M. Weis, Bryan L. Bennett, Andrea Labouriau, Darrick J. Williams, Juan G. Duque, Mansoor Sheik-Bahae, and Markus P. Hehlen. "Structural, thermal, and luminescence properties of cerium-fluoride-rich oxyfluoride glasses." Optical Materials 35, no. 2 (December 2012): 117–25. http://dx.doi.org/10.1016/j.optmat.2012.07.022.

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Damrawi, G. El. "¬¬Chromium fluoride-containing bioactive glasses: Structure and properties." JOURNAL OF ADVANCES IN PHYSICS 13, no. 4 (August 1, 2017): 4868–48775. http://dx.doi.org/10.24297/jap.v13i5.6042.

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Bioglasses in the system 24.5Na2O.24.5CaO.6P2O5.xCrF2.(45-x)SiO2 have been studied in the composition region of x= 0-10 mol%. CrF2. Glass of molar ratio (Ca+Na)/SiO2 ~1.1 is the base material for the glasses containing different CrF2 concentrations. X-ray diffraction (XRD), differential scanning calorimetriy (DSC), scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS) and Vicher hardness (Hv) measurements have been carried out. Crystalline feature of the glasses is followed up by XRD spectroscopy. It is found that crystallinity was enhanced via CrF2 addition. More enhancement was confirmed via thermal heat treatment process. Increasing CrF2 and sintering temperature will induce new ordered phases which will be distributed in the main glassy phase. Well formed flouroapatite (Ca5(PO4)3F and wollastonite Ca3Cr2(SiO4)3 phases containing fluorine and chromium ions are evidenced in CrF2 containing glasses. Increasing glass transition temperature Tg and hardness number Hv upon increasing CrF2 concentration was discussed on bases of formation of additional bonds by the effect of CrF2 molecules. The measured temperature window between Tc and Tg was found to have a great influence in material structure. Wide window is a feature of amorphous glass which free from CrF2. The window scale is found to quickly decrease with increasing CrF2, since crystalline phases are already formed in glasses containing CrF2. Formation of crystalline intermediate phases with more shielded silicate and phosphate structural is considered as the main reason for increasing Tg and (Hv) of the glasses. EDS as well as XRD analyzed spectra confirm that crystalline wollastonite of calcium inosilicate mineral (CaSiO3) phase is well formed. The wollastonite species is evidenced to contain small amounts of chromium and fluorine ions which are substituting for calcium cations. Wollastonite phases with Cr/Si=1 is the most dominant type. This ratio is a characteristic feature of crystalline CaSiO3 species. Small concentration from fluorine ions are involved in apatite phases. Presence of both crystalline apatite and wollastonite in the sample matrix promotes its biocompatibility, particularly orthopedic bioactivity. As a consequence, some of investigated glasses are recommended to be applicable in dental field of applications. This depends on its own crystallinity, hardness, its apatite and wollastonite concentration as biocompatible phases in the crystallized glass
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Lakshminarayana, G., Hucheng Yang, Song Ye, Yin Liu, and Jianrong Qiu. "Cooperative downconversion luminescence in Pr3+/Yb3+:SiO2–Al2O3–BaF2–GdF3 glasses." Journal of Materials Research 23, no. 11 (November 2008): 3090–95. http://dx.doi.org/10.1557/jmr.2008.0372.

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Oxyfluoride aluminosilicate glasses with compositions of 50SiO2–20Al2O3–20BaF2–10GdF3–0.5PrF3–xYbF3(x = 0, 1.0, 2.5, 5, 7.5, 10, 15, 20, 25, and 30 mol%) have been prepared to study their thermal and optical properties. From the differential thermal analysis (DTA) measurement, glass-transition temperatures and onset crystallization temperatures have been evaluated and from them, glass-stability factors against crystallization were calculated. Glass stabilities were decreased gradually with fluoride content increment in all the studied glasses. The photoluminescence and decay measurements have also been carried out for these glasses. In these glasses, an efficient near-infrared (NIR) quantum cutting with optimal quantum efficiency approaching 160% have been demonstrated, by exploring the cooperative downconversion mechanism from Pr3+ to Yb3+ with 481 nm (3P0 → 3H4) excitation wave length. These glasses are promising materials to achieve high-efficiency silicon-base solar cells by means of downconversion in the visible part of the solar spectrum.
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Lima, S. M., J. A. Sampaio, T. Catunda, R. Lebullenger, A. C. Hernandes, M. L. Baesso, A. C. Bento, and F. C. G. Gandra. "Time-resolved thermal lens measurements of thermo-optical properties of fluoride glasses." Journal of Non-Crystalline Solids 256-257 (October 1999): 337–42. http://dx.doi.org/10.1016/s0022-3093(99)00489-5.

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S.L, Meena. "Spectral and Thermal Properties of Ho3+ Doped Aluminum- Barium- Calcium-Magnesium Fluoride Glasses." International Journal of Applied Physics 7, no. 01 (January 25, 2020): 14–20. http://dx.doi.org/10.14445/23500301/ijap-v7i1p103.

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Dissertations / Theses on the topic "Fluoride glasses Thermal properties"

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Lima, Sandro Marcio. "Aplicações da técnica de lente térmica em materiais ópticos." Universidade de São Paulo, 1999. http://www.teses.usp.br/teses/disponiveis/76/76132/tde-12092007-174322/.

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Neste trabalho, a técnica de Lente Térmica (LT) foi usada para determinar o valor absoluto da difusividade térmica (D), da condutividade térmica (K) e do coeficiente de temperatura do caminho óptico (ds/tD) de vidros fluoretos dopados com cobalto e neodímio, calcogenetos, calcohaletos (mistura de calcogenetos com haletos), aluminate de cálcio e de um cristal fluoreto. Estas medidas foram efetuadas na temperatura ambiente e próxima de Tg para algumas amostras. Para o vidro ZBLAN, realizamos experimentos de LT da temperatura ambiente até ~ 330°C, observando um grande decréscimo de D na região de transição do vidro (Tg ~ 290°C). Nós também aplicamos a técnica de LT para determinar a eficiência quântica fluorescente do ZBLAN dopado com Nd+3. A utilidade desta técnica para determinar as propriedades termo-ópticas dos materiais transparentes em função da temperatura foi demonstrado.
In this work the Thermal Lens (TL) technique was used to determine the absolute values of the thermal diffusivity (D), thermal conductivity (K) and temperature coefficient of the optical path length (ds/dT) of fluoride, chalcogenide, chalcohalide (chalcogenides and halides mixture) and calcium aluminate glass and of a fluoride cristal. These measurements were developed at ambient temperature and near Tg for some samples. For the ZBLAN glass, we performed the TL experiment from ambient to ~ 330°C, observing na abrupt decrease on D close to the glass transition temperature (Tg ~ 290°C). We also applied the TL technique to determine the fluorescence quantum efficiency of Nd+3 doped ZBLAN. The usefulness of this technique to determine thermo-optical properties of transparent materials as a function of the temperature was demonstrated.
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McDougall, James. "Spectroscopic properties of rare earth ions in zirconium based fluoride glasses." Thesis, University of the West of Scotland, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.261598.

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Aksel, Cemail. "Thermal shock behaviour and mechanical properties of magnesia-spinel composites." Thesis, University of Leeds, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.275609.

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Liao, Hao-Hsiang. "Thermal and thermoelectric properties of nanostructured materials and interfaces." Diss., Virginia Tech, 2012. http://hdl.handle.net/10919/19198.

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Many modern technologies are enabled by the use of thin films and/or nanostructured composite materials. For example, many thermoelectric devices, solar cells, power electronics, thermal barrier coatings, and hard disk drives contain nanostructured materials where the thermal conductivity of the material is a critical parameter for the device performance. At the nanoscale, the mean free path and wavelength of heat carriers may become comparable to or smaller than the size of a nanostructured material and/or device. For nanostructured materials made from semiconductors and insulators, the additional phonon scattering mechanisms associated with the high density of interfaces and boundaries introduces additional resistances that can significantly change the thermal conductivity of the material as compared to a macroscale counterpart. Thus, better understanding and control of nanoscale heat conduction in solids is important scientifically and for the engineering applications mentioned above. In this dissertation, I discuss my work in two areas dealing with nanoscale thermal transport: (1) I describe my development and advancement of important thermal characterization tools for measurements of thermal and thermoelectric properties of a variety of materials from thin films to nanostructured bulk systems, and (2) I discuss my measurements on several materials systems done with these characterization tools. First, I describe the development, assembly, and modification of a time-domain thermoreflectance (TDTR) system that we use to measure the thermal conductivity and the interface thermal conductance of a variety of samples including nanocrystalline alloys of Ni-Fe and Co-P, bulk metallic glasses, and other thin films. Next, a unique thermoelectric measurement system was designed and assembled for measurements of electrical resistivity and thermopower of thermoelectric materials in the temperature range of 20 to 350 °C. Finally, a commercial Anter Flashline 3000 thermal diffusivity measurement system is used to measure the thermal diffusivitiy and heat capacity of bulk materials at high temperatures. With regards to the specific experiments, I examine the thermal conductivity and interface thermal conductance of two different types of nanocrystalline metallic alloys of nickel-iron and cobalt-phosphorus. I find that the thermal conductivity of the nanocrystalline alloys is reduced by a factor of approximately two from the thermal conductivity measured on metallic alloys with larger grain sizes. With subsequent molecular dynamics simulations performed by a collaborator, and my own electrical conductivity measurements, we determine that this strong reduction in thermal conductivity is the result of increased electron scattering at the grain boundaries, and that the phonon component of the thermal conductivity is largely unchanged by the grain boundaries. We also examine four complex bulk metallic glass (BMG) materials with compositions of Zr₅₀Cu₄₀Al₁₀, Cu46.25Zr44.25Al7.5Er₂, Fe₄₈Cr₁₅Mo₁₄C₁₅B₆Er₂, and Ti41.5Zr2.5Hf₅Cu42.5Ni7.5Si₁. From these measurements, I find that the addition of even a small percentage of heavy atoms (i.e. Hf and Er) into complex disordered BMG structures can create a significant reduction in the phonon thermal conductivity of these materials. This work also indicates that the addition of these heavy atoms does not disrupt electron transport to the degree with which thermal transport is reduced.
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Ràfols, Ribé Joan. "Organic vapour-deposited stable glasses: from fundamental thermal properties to high-performance organic light-emitting diodes." Doctoral thesis, Universitat Autònoma de Barcelona, 2017. http://hdl.handle.net/10803/457956.

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La deposició física de vapor ha sorgit recentment com una ruta alternativa per preparar vidres d’un ampli ventall d'estabilitats, juntament amb altres característiques. Concretament, ha fet possible l’obtenció de vidres amb propietats que superen les dels vidres convencionals i que, d’altra manera, requeririen temps de desenes a diversos milers d'anys de refredament lent o envelliment. És per aquesta raó que aquests vidres s’anomenen vidres de gran estabilitat o bé vidres ultraestables. S’ha demostrat com, per a moltes molècules orgàniques i bones formadores de vidre, la temperatura de dipòsit juga una paper fonamental a l’hora de determinar les propietats del vidre, com són l’estabilitat tèrmica, la densitat o l’orientació molecular entre altres, donant així la possibilitat d’incrementar l'inherent inestabilitat del vidres. Els vidres dipositats a partir de la fase vapor ofereixen tant noves perspectives als fenomen de transició vítria com també aplicacions potencials dins de diversos processos tecnològics, com és el cas de l’electrònica orgànica. Aquest treball té per objectiu aprofundir en el coneixement dels vidres dipositats utilitzant molècules orgàniques semiconductores. Per això, fem servir dues tècniques basades en membranes suspeses—la nanocalorimetria quasi-adiabàtica i ultra-ràpida de rastreig i el mètode 3ω-Völklein—per caracteritzar diversos aspectes d'aquests vidres. En primer lloc, mostrem que les capes amorfes més estables s’obtenen quan són evaporades sobre un substrat al 85 % de temperatura de transició vítria () del material en qüestió. Seguidament, mostrem com aquestes capes dipositades es transformen en vidre sota-refredat en forma d’un front de creixement que es propaga des de les regions altament mòbils (superfície i interfícies). Les característiques d'aquest mecanisme s’investiguen i es discuteixen respecte a les diferents propietats del vidre preparat. En tercer lloc, demostrem com aquesta transformació heterogènia es pot suprimir de manera eficaç quan la interfície amb la mobilitat més alta és bloquejada per una capa amb mobilitat més baixa, obtenint d’aquesta manera accés a la transformació homogènia en tot el volum. A més a més, veiem com l’estabilitat cinètica d’aquestes capes tapades millora quan utilitzem aquesta estratègia. Després de caracteritzar la transició vítria, també mesurem la conductivitat tèrmica d'aquestes capes. Observem com la conductivitat tèrmica en la direcció del pla canvia en funció de la temperatura de dipòsit, un comportament que atribuïm a variacions en l’orientació molecular. Finalment, presentem un senzill díode orgànic d’emissió de llum (OLED) fosforescent consistent tan sols de dues capes orgàniques, per comprovar la influència que la temperatura de dipòsit té en el rendiment del dispositiu. Demostrem com l’eficiència i temps de vida útil del dispositiu milloren quan les seves capes funcionals s’evaporen a . Aquests resultats s’aconsegueixen considerant només la temperatura de transició vítria i, per tant, en principi es poden generalitzar a qualsevol dispositiu OLED. Aquest treball contribueix al coneixement actual dels vidres dipositats a partir de la fase vapor aportant tant noves perspectives sobre les seves propietats tèrmiques i mecanismes de devitrificació com un exemple exitós sobre l’aplicació en els dispositius d'OLED moderns.
Physical vapour deposition has recently emerged as an alternative route to prepare glasses that span a broad range of stabilities, together with other features. Particularly, it is possible to achieve glasses with properties that outperform conventional glasses, and that would otherwise require times from tenths to several thousands of years of slowly-cooling or ageing. For this reason, these glasses are referred as highly stable glasses or ultrastable glasses. In particular, it has been shown that for many molecular organic glass-formers, the deposition temperature plays a crucial role in determining glass properties, such as thermal stability, density or molecular orientation among others, giving the possibility to enhance the inherent instability of glasses. Vapour-deposited glasses offer new insights into the glass transition phenomenon but also potential applications in many technological processes such as in organic electronics. This work is committed to further deepen the knowledge on vapour-deposited glasses using organic semiconductor materials. We use two silicon nitride membrane-based techniques---fast-scanning quasi-adiabatic nanocalorimetry and the 3ω-Völklein method---to characterise several facets of these glasses. Firstly, we show that the most stable amorphous films are obtained when evaporated at 85 % of its corresponding glass transition temperature (). Secondly, we show how vapour-deposited films transform into the supercooled liquid via a propagating growth front that starts at the highly-mobile regions (surface and interfaces). The characteristics of this mechanism are examined and rationalised regarding the different glass properties. Thirdly, we demonstrate how this heterogeneous transformation can be effectively suppressed when the high-mobility interface is capped with a lower mobility layer, gaining access to the bulk transformation. We see how the kinetic stability of the capped layers is improved using this strategy. After characterising the glass transition, we look at the thermal conductivity of these glasses. We observe how the in-plane thermal conductivity changes with the deposition temperature and we attribute this behaviour to variations in the molecular alignment. Finally, we present a simple phosphorescent organic light-emitting diode device (OLED), consisting only of two organic layers, to check the influence of the deposition temperature on the device performance. We demonstrate how its efficiency and lifetime are enhanced when its functional layers are evaporated at 0.85. These results are achieved considering only the glass transition temperature and, therefore, they could be generalised to any OLED device. This work contributes to the existing knowledge of vapour-deposited glasses by providing new insights into their thermal properties and devitrification mechanisms and by exploring their potential application in the state-of-the-art OLED devices.
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Stabler, Christina [Verfasser], Emanuel [Akademischer Betreuer] Ionescu, and Martin [Akademischer Betreuer] Heilmaier. "Mechanical and Thermal Properties of SiOC-based Glasses and Glass Ceramics / Christina Stabler ; Emanuel Ionescu, Martin Heilmaier." Darmstadt : Universitäts- und Landesbibliothek Darmstadt, 2019. http://d-nb.info/1187444359/34.

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Hudl, Matthias. "Magnetic materials with tunable thermal, electrical, and dynamic properties : An experimental study of magnetocaloric, multiferroic, and spin-glass materials." Doctoral thesis, Uppsala universitet, Fasta tillståndets fysik, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-168986.

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This thesis concerns and combines the results of experimental studies of magnetocaloric, multiferroic and spin-glass materials, using SQUID magnetometry as the main characteriza-tion technique.  The magnetocaloric effect offers an interesting new technology for cooling and heating applications. The studies of magnetocaloric materials in this thesis are focused on experimen-tal characterization of fundamental magnetic properties of Fe2P-based materials. These are promising magnetocaloric materials with potential industrial use. It is found that the magneto-caloric properties of Fe2P can be optimally tuned by substitution of manganese for iron and silicon for phosphorus. Furthermore, a simple device to measure the magnetocaloric effect in terms of the adiabatic temperature change was constructed.  Materials that simultaneously exhibit different types of ferroic order, for example magnetic and electrical order, are rare in nature. Among these multiferroic materials, those in which the ferroelectricity is magnetically-induced, or vice versa the magnetism is electrically-induced, are intensively studied due to a need for new functionalities in future data storage and logic devices. This thesis presents results on two materials: Co3TeO6 and Ba3NbFe3Si2O14, which belong to the group of magnetically-induced ferroelectrics and exhibit strong coupling be-tween the magnetic and the electrical order parameter. Their ordering properties were studied using magnetic and electrical measurement techniques. The coupling between the magnetic and electronic degrees of freedom was investigated using high-field and low-temperature Raman spectroscopy.  Spin-glass materials exhibit complex magnetism and disorder. The influence of the spin dimensionality on the low and high magnetic field properties of spin glasses was investigated by studying model Heisenberg, XY and Ising spin-glass systems. Significant differences were found between the non-equilibrium dynamics and the hysteresis behavior of Heisenberg systems compared to those of XY and Ising spin glasses.
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Wang, Ninghua. "Evidence for the Intermediate Phase in Bulk (K2O)x(GeO2)1-x glasses and its consequences on Electrical and Thermal Properties." University of Cincinnati / OhioLINK, 2007. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1187020710.

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Grema, Lawan Umar. "The effects of composition on the thermal, mechanical and electrical properties of alumino-borosilicate sealing glasses for solid oxide fuel cell (SOFC) applications." Thesis, University of Sheffield, 2018. http://etheses.whiterose.ac.uk/15649/.

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Structural integrity and reliability of sealing materials for planar type solid oxide fuel cells (pSOFCs) is key to attaining the required functionality and subsequent commercialisation of such fuel cells. In this thesis a number of different series of alumino-borosilicate glasses containing alkaline earth modifiers, as well as ZnO and La2O3 are studied as potential sealant materials. The glass ceramics derived from these glasses were also studied. Vickers hardness indentation was used to assess the hardness and indentation fracture toughness of these glasses and acoustic measurements were used to determine their moduli. The results reveal a decrease in mechanical properties with modifier additions in all the series except for increasing La2O3 in xSi(20-x)La(Sr) with little variation of mechanical properties in the case of xB(15-x)Zn (10BaO-(15-x)ZnO-15La2O3-5Al2O3-(10+x)B2O3-45SiO2 (X= 2.5, 5, 7.5, 10)) and xSi(20-x)Zn (10BaO-(20-x)ZnO-15La2O3-5Al2O3-10B2O3-(40+x)SiO2 (X=2.5,5,7.5) mol%) hardness. Electrical conductivity of sealing glasses must be lower than 10-4 S cm-1 and or > 104Ω cm. Hence the electrical properties the electrical properties of these glasses were measured using impedance spectroscopy and the results indicated that all of the glass and glass ceramic samples studied are electrically resistive and show promise for use as sealing materials. Another important parameter is the thermal properties where the TEC of the sealing glass must be compatible with the other components because differences in TEC of sealing glasses and adjoining SOFC parts result in mismatch and induce thermal stresses during thermal cycling and this may generate cracks through which gas leakages occur. The TEC of xBa(10-x)Al series (10+x)BaO-5ZnO-20SrO-(10-x)Al2O3-20B2O3-35SiO2 (X= 0, 2, 3, 4, 5) and some of xBa(40-x)Si samples (15+x)BaO-5ZnO-15La2O3-5Al2O3-20B2O3-(40+x)SiO2 (X=2.5,5,7.5, 10) have fall within the requirement for sealing glasses. Apart from the TEC the Tg is also a determining factor as to the suitability or otherwise of a sealing glass to be a promising candidate due to the following reasons: (i) thermal stresses develop below the Tg where the glass is brittle therefore the Tg should be as low as possible; (ii) due to high temperature material degradation research efforts are on to reduce the operating temperatures of SOFCs to enhance materials service life and the opportunity for variety of materials selection to construct the SOFCs components. Heat treating series xB(15-x)Zn, xSi(20-x)Zn and xBa(40-x)Si lead to the formation of lanthanum borosilicate single phase. The evolution of these phase lead to not only increased in conductivity as mentioned above but also in the hardness as they are higher in the glass ceramics. However the TEC of the glass ceramics compared with the parent glasses were slightly lower and its reported in this study that this is a good sign of thermal stability as the TEC did not exhibit the possibility of continues increase.
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Cardoso, Celso Xavier. "Propriedades ópticas de vidros de fluoretos de indio e zircônio puros e dopados com Nd ou Pr." Universidade de São Paulo, 1992. http://www.teses.usp.br/teses/disponiveis/54/54132/tde-19032009-102145/.

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Neste trabalho apresentamos uma nova classe de vidros de fluoretos de metais pesados (HMF) baseados nos fluoretos de índio (InF3) de composição InSrBaZnGdNa e InSrBaZnGaNa. Realizamos um estudo das propiredades físicas (tais como: índice de refração, temperaturas características e estabilidades) e óticas (absorção, emissão e tempo de vida) de vidros puros e dopados com Nd ou Pr. As propriedades estão comparadas com aquelas dos vidros ZrBaLaAlNa (ZBLAN). A principal característica dos vidros de fluoretos de índios puros é a extensa transmissão no IV (até 8330 nm), maiores que a do ZBLAN (até 6650 nm). Tanto os vidros dopados com Nd como com Pr são materiais promissores para o desenvolvimento de laser com emissões a 1050 e 1320 nm nos vidros de Nd e a 1320 nm no vidro com Pr e amplificadores óticos para telecomunicações na janela ótica centrada a 1300 nm, uma vez que apresentam bandas de emissão a 1315 nm (InSBZnGdN), 1317 nm (InSBZnGdN:Nd) e a 1320 nm (InSBZnGdN:Pr).
We present a new class of heavy metals fluoride glasses (HMF) of InSrBaZnGdNa and InSrBaZnGaNa compositions. We have realized a study of the physical properties such as refraction index, characteristic temperatures, stability and optical properties such as absorption, emission, lifetime of pure, Nd or Pr doped glasses. These properties are similar to those obtained for glasses of ZrBaLaAlNa (ZBLAN) composition. The main characteristic of pure indium fluoride glasses is their larger transmission window in the infrared region (8330 nm) compared to ZBLAN composition (6650 nm). Rare earth doped glasses are promising materials for the development of glasses laser with emission in the 1050-1320 nm range (Nd) and 1320 nm (Pr), as well as optical amplifiers for telecommunication in the optical window centered at 1300 nm, as prominent emission bands are located at 1315 nm (InSBZnGdN), 1317 nm (InSBZnGdN:Nd) and 1320 nm (InSBZnGdN:Pr).
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Books on the topic "Fluoride glasses Thermal properties"

1

Schaefer, Seth C. Electrochemical determination of thermodynamic properties of MnF₂ and CoF₂. Pittsburg, Pa: U.S. Dept. of the Interior, Bureau of Mines, 1985.

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Pascal, Richet, ed. Silicate glasses and melts: Properties and structure. Boston, Mass: Elsevier, 2005.

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Glassy And Amorphous Materials Processes Kinetics By Thermal Analysis. Springer, 2012.

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Critical Survey of Stability Constants and Related Thermodynamic Data of Fluoride Complexes in Aqueous Solution. Elsevier Science & Technology Books, 2017.

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Ramos, Miguel A. Low-Temperature Thermal and Vibrational Properties of Disordered Solids: A Half-Century of Universal "Anomalies" of Glasses. World Scientific Publishing Co Pte Ltd, 2022.

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Book chapters on the topic "Fluoride glasses Thermal properties"

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Bruce, Allan J. "The Thermal Properties of Fluoride Glass." In Halide Glasses for Infrared Fiberoptics, 149–62. Dordrecht: Springer Netherlands, 1987. http://dx.doi.org/10.1007/978-94-009-3561-7_9.

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Parker, J. M., and P. W. France. "Properties of fluoride glasses." In Fluoride Glass Optical Fibres, 32–74. Dordrecht: Springer Netherlands, 1990. http://dx.doi.org/10.1007/978-94-011-6865-6_2.

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Drexhage, Martin G. "Optical Properties of Fluoride Glasses." In Halide Glasses for Infrared Fiberoptics, 219–35. Dordrecht: Springer Netherlands, 1987. http://dx.doi.org/10.1007/978-94-009-3561-7_14.

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McCarthy, K. A., H. H. Sample, and M. B. Koss. "The Thermal Conductivity of Several Fluoride Glasses." In Phonon Scattering in Condensed Matter V, 43–45. Berlin, Heidelberg: Springer Berlin Heidelberg, 1986. http://dx.doi.org/10.1007/978-3-642-82912-3_12.

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Trnovcová, V., R. M. Zakalyukin, N. I. Sorokin, D. Ležal, P. P. Fedorov, Emília Illeková, Andrej Škubla, and M. Kadlečíková. "Physical Properties of Fluoride Glasses for Ionics." In Materials Science Forum, 299–304. Stafa: Trans Tech Publications Ltd., 2005. http://dx.doi.org/10.4028/0-87849-962-8.299.

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Jacoboni, C. "Transition Metal Fluoride Glasses (TMFG), Synthesis, Properties, Structure." In Halide Glasses for Infrared Fiberoptics, 341–55. Dordrecht: Springer Netherlands, 1987. http://dx.doi.org/10.1007/978-94-009-3561-7_24.

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Reisfeld, Renata. "Optical Properties of Rare-Earth and Transition Metal Ions in Fluoride Glasses." In Halide Glasses for Infrared Fiberoptics, 237–52. Dordrecht: Springer Netherlands, 1987. http://dx.doi.org/10.1007/978-94-009-3561-7_15.

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Yonezawa, Susumu, Jae-Ho Kim, and Masayuki Takashima. "Preparation and Properties of Rare-Earth-Containing Oxide Fluoride Glasses." In Functionalized Inorganic Fluorides, 545–70. Chichester, UK: John Wiley & Sons, Ltd, 2010. http://dx.doi.org/10.1002/9780470660768.ch18.

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Drexhage, Martin G. "Optical and Related Properties of Bulk Heavy Metal Fluoride Glasses." In Glass … Current Issues, 318–27. Dordrecht: Springer Netherlands, 1985. http://dx.doi.org/10.1007/978-94-009-5107-5_26.

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Pionteck, J., and M. Pyda. "pVT Data of Poly(vinylidene fluoride) / Poly(methyl methacrylate) Blends." In Part 2: Thermodynamic Properties – pVT-Data and Thermal Properties, 217–22. Berlin, Heidelberg: Springer Berlin Heidelberg, 2014. http://dx.doi.org/10.1007/978-3-642-41542-5_39.

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Conference papers on the topic "Fluoride glasses Thermal properties"

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Ehrt, Doris. "Structure and properties of fluoride phosphate glasses." In San Diego '92, edited by James B. Breckinridge and Alexander J. Marker III. SPIE, 1993. http://dx.doi.org/10.1117/12.138929.

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Iqbal, Tariq, Mahmoud R. Shahriari, Glenn Merberg, and George H. Sigel, Jr. "Optical Properties Of Aluminum Fluoride Based Glasses." In 32nd Annual Technical Symposium, edited by Alexander J. Marker III. SPIE, 1989. http://dx.doi.org/10.1117/12.948175.

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Roopa and B. Eraiah. "Optical properties of zirconium doped sodium-boro-zinc fluoride glasses." In DAE SOLID STATE PHYSICS SYMPOSIUM 2018. AIP Publishing, 2019. http://dx.doi.org/10.1063/1.5113064.

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Rolli, Raffaella, Alessandro Chiasera, Maurizio Montagna, Enrico Moser, Sabina Ronchin, Stefano Pelli, Giancarlo C. Righini, et al. "Rare-earth-activated fluoride and tellurite glasses: optical and spectroscopic properties." In Symposium on Integrated Optics, edited by Shibin Jiang. SPIE, 2001. http://dx.doi.org/10.1117/12.424767.

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Suzuki, Takenobu, Yasuyuki Iwata, and Yasutake Ohishi. "Optical properties of Er-doped fluoride glasses for solar-pumped laser applications." In CLEO: Applications and Technology. Washington, D.C.: OSA, 2014. http://dx.doi.org/10.1364/cleo_at.2014.jw2a.60.

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Lima, S. M., Tomaz Catunda, R. Lebullenger, Antonio C. Hernandes, Mauro L. Baesso, and A. C. Bento. "Thermal-lens measurements of fluorescence quantum efficiency in Nd+3-doped fluoride glasses." In ICO XVIII 18th Congress of the International Commission for Optics, edited by Alexander J. Glass, Joseph W. Goodman, Milton Chang, Arthur H. Guenther, and Toshimitsu Asakura. SPIE, 1999. http://dx.doi.org/10.1117/12.354909.

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Lenkennavar, Susheela K., A. Madhu, B. Eraiah, and M. K. Kokila. "Structural properties of alkaline sodium lead fluoride borate glasses incorporated with Praseodymium ion." In 2ND INTERNATIONAL CONFERENCE ON CONDENSED MATTER AND APPLIED PHYSICS (ICC 2017). Author(s), 2018. http://dx.doi.org/10.1063/1.5032872.

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Lenkennavar, Susheela K., Madhu A., and M. K. Kokila. "Physical and structural properties of Dy3+ and Nd3+-ions doped oxy-fluoride glasses." In DAE SOLID STATE PHYSICS SYMPOSIUM 2018. AIP Publishing, 2019. http://dx.doi.org/10.1063/1.5113079.

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Davey, Steven T., Daryl Szebesta, Richard R. Wyatt, Wayne Jordan, and Animesh Jha. "Properties of novel glasses for the optimization of Pr-doped fluoride fiber amplifiers." In Optical Tools for Manufacturing and Advanced Automation, edited by Michel J. F. Digonnet. SPIE, 1994. http://dx.doi.org/10.1117/12.168603.

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Kaur, Rajinder, and Atul Khanna. "Structural and thermal properties of magnesium tellurite glasses." In DAE SOLID STATE PHYSICS SYMPOSIUM 2019. AIP Publishing, 2020. http://dx.doi.org/10.1063/5.0017748.

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Reports on the topic "Fluoride glasses Thermal properties"

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Barnes, Eftihia, Jennifer Jefcoat, Erik Alberts, Hannah Peel, L. Mimum, J, Buchanan, Xin Guan, et al. Synthesis and characterization of biological nanomaterial/poly(vinylidene fluoride) composites. Engineer Research and Development Center (U.S.), September 2021. http://dx.doi.org/10.21079/11681/42132.

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Abstract:
The properties of composite materials are strongly influenced by both the physical and chemical properties of their individual constituents, as well as the interactions between them. For nanocomposites, the incorporation of nano-sized dopants inside a host material matrix can lead to significant improvements in mechanical strength, toughness, thermal or electrical conductivity, etc. In this work, the effect of cellulose nanofibrils on the structure and mechanical properties of cellulose nanofibril poly(vinylidene fluoride) (PVDF) composite films was investigated. Cellulose is one of the most abundant organic polymers with superior mechanical properties and readily functionalized surfaces. Under the current processing conditions, cellulose nanofibrils, as-received and 2,2,6,6-tetramethylpiperidine-1-oxyl radical (TEMPO) oxidized, alter the crystallinity and mechanical properties of the composite films while not inducing a crystalline phase transformation on the 𝛾 phase PVDF composites. Composite films obtained from hydrated cellulose nanofibrils remain in a majority 𝛾 phase, but also exhibit a small, yet detectable fraction of 𝛼 and ß PVDF phases.
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