Log in

Relevant bibliographies by topics / Immiscibility Gap / Journal articles

To see the other types of publications on this topic, follow the link: Immiscibility Gap.

Journal articles on the topic 'Immiscibility Gap'

Author: Grafiati

Published: 28 May 2022

Last updated: 31 July 2025

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 39 journal articles for your research on the topic 'Immiscibility Gap.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse journal articles on a wide variety of disciplines and organise your bibliography correctly.

1

Mende, Tamás, and András Roósz. "Calculation of the Immiscibility Gap by ESTPHAD Method." Materials Science Forum 659 (September 2010): 423–28. http://dx.doi.org/10.4028/www.scientific.net/msf.659.423.

Full text

Abstract:

By using the thermodynamic equations, the ESTPHAD (Estimation of Phase Diagrams) method developed by us has been made suitable for calculating the immiscibility gap of monotectic systems. 2 special parameters were introduced in the basic equation of ESTPHAD which ensure the description of the characteristics of monotectic curve on the basis of the boundary conditions created by us. By means of the monotectic ESTPHAD equation, the equations of separation temperatures of monotectic parts in the Zn-Bi and Al-Bi systems were calculated (with an accuracy of +/- 10K) on the basis of the reference da

APA, Harvard, Vancouver, ISO, and other styles

2

Ban, Takayuki, Shigeo Hayashi, Atsuo Yasumori, and Kiyoshi Okada. "Calculation of metastable immiscibility region in the Al2O3–SiO2 system." Journal of Materials Research 11, no. 6 (1996): 1421–27. http://dx.doi.org/10.1557/jmr.1996.0178.

Full text

Abstract:

Metastable liquid-liquid immiscibility region in the Al2O3–SiO2 system was calculated by a regular solution model using three sets of liquidus data from the stable phase diagrams reported. These calculations indicated that the immiscibility region was richer in Al2O3 composition than those reported before. A miscibility gap calculated using the liquidus data reported by Klug et al. [F. J. Klug, S. Prochazka, and R. H. Doremus, J. Am. Ceram. Soc. 70, 750 (1987)] (model A) ranged from 2.6 to 71 mol % Al2O3 at around 1000 °C, which was the most compatible result with the idea that metastable pseu

APA, Harvard, Vancouver, ISO, and other styles

3

Plevachuk, Yu, V. Filippov, V. Kononenko, et al. "Investigation of the miscibility gap region in liquid Ga–Pb alloys." International Journal of Materials Research 94, no. 9 (2003): 1034–39. http://dx.doi.org/10.1515/ijmr-2003-0187.

Full text

Abstract:

Abstract The miscibility gap of the Ga–Pb system has been investigated by different experimental methods and techniques. Viscosity, acoustic and electrical conductivity measurements were carried out through the entire immiscibility region. Possible reasons of revealed discrepancies in the absolute values of the phase separation temperatures are discussed in relation with peculiarities of the experimental methods employed. The shape of the miscibility gap has been analysed.

APA, Harvard, Vancouver, ISO, and other styles

4

Bergermann, Armin, Martin French, and Ronald Redmer. "Gibbs-ensemble Monte Carlo simulation of H2–H2O mixtures." Physical Chemistry Chemical Physics 23, no. 22 (2021): 12637–43. http://dx.doi.org/10.1039/d1cp00515d.

Full text

Abstract:

The miscibility gap in H<sub>2</sub>–H<sub>2</sub>O mixtures is investigated by conducting Gibbs-ensemble Monte Carlo simulations. Our results indicate that H<sub>2</sub>–H<sub>2</sub>O immiscibility regions may have a significant impact on the structure and evolution of ice giant planets.

APA, Harvard, Vancouver, ISO, and other styles

5

Arefiev, Anton V., Anton Shatskiy, Altyna Bekhtenova, and Konstantin D. Litasov. "Phonolite-Carbonatite Liquid Immiscibility at 3–6 GPa." Minerals 13, no. 3 (2023): 443. http://dx.doi.org/10.3390/min13030443.

Full text

Abstract:

Liquid immiscibility plays an important role in the formation of carbonatites and associated alkaline Si-undersaturated magmas. Experiments in the sodium carbonate-aluminosilicate systems suggest that the carbonate-silicate miscibility gap is limited by crustal and shallow mantle pressures (up to 2.5 GPa). Unlike in the potassium-rich carbonate-aluminosilicate systems, the carbonate-silicate miscibility gap was established at pressures of 3.5–6 GPa. It is therefore interesting to elucidate the immiscibility range under intermediate pressures, corresponding to 100–200 km depths. Here we conduct

APA, Harvard, Vancouver, ISO, and other styles

6

Constant, Kristen Persels, Jonq-Ren Lee, and Yet-Ming Chiang. "Microstructure development in furfuryl resin-derived microporous glassy carbons." Journal of Materials Research 11, no. 9 (1996): 2338–45. http://dx.doi.org/10.1557/jmr.1996.0297.

Full text

Abstract:

The processing of microporous glassy carbon derived from furfuryl alcohol and ethylene glycol mixtures has been studied, with emphasis on understanding and controlling microstructure development. It is shown that this system exhibits a polymerization-dependent miscibility gap, and that the carbon microstructure is determined by phase separation in the liquid state. Variations in carbon microstructure with composition and thermal history can be understood in terms of the time-dependent immiscibility and resulting phase separation.

APA, Harvard, Vancouver, ISO, and other styles

7

Takei, Takahiro, Yoshikazu Kameshima, Atsuo Yasumori, and Kiyoshi Okada. "Calculation of metastable immiscibility region in the Al2O3–SiO2 system using molecular dynamics simulation." Journal of Materials Research 15, no. 1 (2000): 186–93. http://dx.doi.org/10.1557/jmr.2000.0030.

Full text

Abstract:

The metastable immiscibility region in the Al2O3–SiO2 system was calculated by conventional thermodynamic equations using thermodynamic parameters obtained from molecular dynamics simulation. The calculated miscibility gap has a consolute temperature of around 1500 °C at the critical composition of about 20 mol% Al2O3 and spreads more widely towards the Al2O3-rich composition side than the SiO2-rich side. The calculated miscibility gap in this study showed a fair agreement with that reported by Ban et al. [T. Ban, S. Hayashi, A. Yasumori, and K. Okada, J. Mater. Res. 11, 1421 (1996)] calculate

APA, Harvard, Vancouver, ISO, and other styles

8

Ilatovskaia, M., and O. Fabrichnaya. "Liquid Immiscibility and Thermodynamic Assessment of the Al2O3–TiO2–SiO2 System." Journal of Phase Equilibria and Diffusion 43, no. 1 (2022): 15–31. http://dx.doi.org/10.1007/s11669-021-00935-4.

Full text

Abstract:

AbstractPhase equilibria in the TiO2–SiO2 system have been studied experimentally using DTA and SEM/EDX. The thermodynamic parameters for the TiO2–SiO2 system have been assessed considering new experimental data of the present work and from the literature. Moreover, the miscibility of the liquid in the Al2O3–TiO2–SiO2 system has been studied at 2013 K in air and shrinkage of the miscibility gap at 3.8 mol% Al2O3 has been demonstrated. The experimental data obtained in the present work and literature as well as the thermodynamic databases for the binary Al2O3–TiO2, TiO2–SiO2, and Al2O3–SiO2 sys

APA, Harvard, Vancouver, ISO, and other styles

9

Janovszky, Dóra, and Kinga Tomolya. "Designing Amorphous/Crystalline Composites by Liquid-Liquid Phase Separation." Materials Science Forum 790-791 (May 2014): 473–78. http://dx.doi.org/10.4028/www.scientific.net/msf.790-791.473.

Full text

Abstract:

The Cu-Zr-Ag system is characterized by a miscibility gap. The liquid separates into Ag-rich and Cu-Zr rich liquids. Yttrium was added to the Cu-Zr-Ag and Cu-Zr-Ag-Al systems and its influence on liquid immiscibility was studied. This alloying element has been chosen to check the effect of the heat of mixing between silver and the given element. In the case of Ag-Y system it is highly negative (-29 kJ/mol). The liquid becomes immiscible in the Cu-Zr-Ag-Y system. To the effect of Y addition the quaternary liquid decomposed into Ag-Y rich and Cu-Zr rich liquids. The Y addition increased the fiel

APA, Harvard, Vancouver, ISO, and other styles

10

Taglialavore, A. P., W. M. Kriven, and S. H. Risbud. "Microstructural development of rapidly solidified, phase-separated SiO2-Al2O3 glass." Proceedings, annual meeting, Electron Microscopy Society of America 44 (August 1986): 442–43. http://dx.doi.org/10.1017/s042482010014378x.

Full text

Abstract:

A metastable miscibility gap has been shown to exist oyer much of the SiO2(s) -mullite(s) phase field by various indirect methods. The various proposed boundaries of this liquid-liquid immiscibility region, however, significantly disagree in their widths and critical point positions. The overall aim of our research is to directly determine the miscibility gap boundaries by using TEM/EDS on suitably equilibrated phases of rapidly solidified SiO2-Al2O3 glass. Rapid solidification by roller quenching (∼106°C/sec) and by ice- water quenching (~1035°C/sec) was used so that a wide range of compositi

APA, Harvard, Vancouver, ISO, and other styles

11

Litasov, Konstantin, Svetlana Teplyakova, Anton Shatskiy, and Konstantin Kuper. "Fe-Ni-P-S Melt Pockets in Elga IIE Iron Meteorite: Evidence for the Origin at High-Pressures Up to 20 GPa." Minerals 9, no. 10 (2019): 616. http://dx.doi.org/10.3390/min9100616.

Full text

Abstract:

Here we report new data on high-pressure microstructures in Elga group IIE iron meteorites, made of solidified Fe-Ni-P-S melt pockets and microcrystalline aggregates, which could be formed only at high pressures and temperatures according to the experimental data. The bulk composition of the melt pockets and crystals correspond to the Fe3P-Fe3S solid solution with the closure of an immiscibility gap at pressures near 20 GPa in static experiments. Some other melt pockets fit with the Fe2S-Fe2P compositions, which could also correspond to high pressures and temperatures. The results suggest a la

APA, Harvard, Vancouver, ISO, and other styles

12

Charlier, B., O. Namur, M. J. Toplis, et al. "Large-scale silicate liquid immiscibility during differentiation of tholeiitic basalt to granite and the origin of the Daly gap." Geology 39, no. 10 (2011): 907–10. http://dx.doi.org/10.1130/g32091.1.

Full text

APA, Harvard, Vancouver, ISO, and other styles

13

Makovicky, Emil, and Sven Karup-Møller. "The central portions of the Cu–Fe–Se phase system at temperatures from 900 to 300 °C." Canadian Mineralogist 58, no. 2 (2020): 203–21. http://dx.doi.org/10.3749/canmin.1900071.

Full text

Abstract:

ABSTRACT The central portions of the condensed phase system Cu–Fe–Se were investigated by means of dry syntheses in evacuated silica glass tubes at 900, 750, 600, 500, 450, 350, and 300 °C. Synthesis products were studied by reflected-light microscopy and electron microprobe analyses. The field of sulfide melt is extensive at 900 °C and retreats progressively towards the Cu–Se side at 750 °C; residual selenide melt persists at 600 °C. The selenium analogue of iss was found only at and below 600 °C; eskebornite becomes individualized at and below 500 °C, whereas the selenium analogue of bornite

APA, Harvard, Vancouver, ISO, and other styles

14

Lu, De Ping, Wei Guo, Jiang Jiang, et al. "Effect of Carbon on the Microstructure of a Cu-Fe Alloy." Solid State Phenomena 279 (August 2018): 49–54. http://dx.doi.org/10.4028/www.scientific.net/ssp.279.49.

Full text

Abstract:

The effect of C addition on the microstructure of a Cu-Fe alloy was investigated by combining the calculation of phase diagram (calphad) and the experimental research. The calphad results indicated that the addition of C substantially enlarged the zone of liquid immiscibility gap in the metastable phase diagram of Cu-Fe alloy. In addition, the larger the addition content of C was, the more obvious the phenomenon was. As a result, the presence of trace amounts of C in the Cu-Fe alloy containing 5~20% (wt.) Fe would cause the liquid phase separation of Cu-rich and Fe-rich liquid phases during th

APA, Harvard, Vancouver, ISO, and other styles

15

Diat, Olivier, Michael L. Klossek, Didier Touraud, et al. "Octanol-rich and water-rich domains in dynamic equilibrium in the pre-ouzo region of ternary systems containing a hydrotrope." Journal of Applied Crystallography 46, no. 6 (2013): 1665–69. http://dx.doi.org/10.1107/s002188981302606x.

Full text

Abstract:

Ternary mixtures of medium-chain fatty alcohols, water and a hydrotrope (such as ethanol), near the immiscibility gap, make stable single phases at constant temperature. Interestingly, in this `pre-ouzo region' these single phases consist of two distinct nanoscopic pseudo-phases, one octanol-rich and one water-rich. This domain of composition, which is known to produce strong light scattering and to separate under ultracentrifugation into two phases, has been studied using contrast variation in small-angle neutron scattering (SANS) combined with small- and wide-angle X-ray scattering (SWAXS).

APA, Harvard, Vancouver, ISO, and other styles

16

Tsujimori, Tatsuki, and Juhn G. Liou. "Coexisting chromian omphacite and diopside in tremolite schist from the Chugoku Mountains, SW Japan: The effect of Cr on the omphacite-diopside immiscibility gap." American Mineralogist 89, no. 1 (2004): 7–14. http://dx.doi.org/10.2138/am-2004-0102.

Full text

APA, Harvard, Vancouver, ISO, and other styles

17

Królikowska, Marta, Marek Królikowski, and Urszula Domańska. "Effect of Cation Structure in Quinolinium-Based Ionic Liquids on the Solubility in Aromatic Sulfur Compounds or Heptane: Thermodynamic Study on Phase Diagrams." Molecules 25, no. 23 (2020): 5687. http://dx.doi.org/10.3390/molecules25235687.

Full text

Abstract:

Experimental and theoretical studies on thermodynamic properties of quinolinium-based ionic liquids (ILs) based on bis(trifluoromethylsulfonyl)imide anion (namely N-butyl-quinoloinium bis(trifluoromethylsulfonyl)imide, [BQuin][NTf2], N-hexylquinoloinium bis(trifluoromethyl-sulfonyl)imide, [HQuin][NTf2], and N-octylquinoloinium bis(trifluoromethyl-sulfonyl)imide, [OQuin][NTf2]) with aromatic sulfur compounds and heptane, as a model compound of fuel were examined in order to assess the applicability of the studied ionic liquids for desulfurization of fuels. With this aim, the temperature-composi

APA, Harvard, Vancouver, ISO, and other styles

18

Kalinnikov, M. A., D. N. Lobanov, K. E. Kudryavtsev, et al. "Features of Formation of InxGa1 – xN Bulk Layers in the Immiscibility Gap of Solid Solutions (x ~ 0.6) by Molecular Beam Epitaxy with Plasma Nitrogen Activation." Semiconductors 58, no. 3 (2024): 231–37. http://dx.doi.org/10.1134/s1063782624030072.

Full text

APA, Harvard, Vancouver, ISO, and other styles

19

Song, Boxue, Xingyu Jiang, and Zisheng Wang. "Enhancing Surface Properties of Cu-Fe-Cr Alloys through Laser Cladding: The Role of Mo and B4C Additives." Coatings 13, no. 12 (2023): 2041. http://dx.doi.org/10.3390/coatings13122041.

Full text

Abstract:

Laser cladding is a powerful surface treatment technique that can significantly enhance the properties of metal alloys. This study delves into the liquid phase separation behavior of Cu-Fe-Cr alloys under the rapid solidification conditions inherent in laser cladding and evaluates the influence of 4% Mo and 2% B4C additions on the resulting alloy characteristics. The intensive undercooling characteristic of the laser cladding process facilitates the alloy’s entry into the liquid-phase immiscibility gap, prompting pronounced phase separation. Our investigation reveals the emergence of Fe-rich r

APA, Harvard, Vancouver, ISO, and other styles

20

Abdeyazdan, Hamed, Maksym Shevchenko, Peter C. Hayes, and Evgueni Jak. "Integrated Experimental and Thermodynamic Modeling Investigation of Phase Equilibria in the PbO–MgO–SiO2 System in Air." Metallurgical and Materials Transactions B 53, no. 2 (2022): 954–67. http://dx.doi.org/10.1007/s11663-022-02440-6.

Full text

Abstract:

AbstractMagnesium oxide-based refractory materials are used industrially to contain the chemically aggressive slags present in lead smelting systems. In the present study an integrated experimental and thermodynamic modeling approach was taken to provide fundamental information on the chemical reactions taking place in these systems. New experimental phase equilibria and liquidus data were obtained for the PbO–MgO–SiO2 system in air in the temperature range 750 °C to 1740 °C. In the MgO–SiO2 binary, new experimental results were obtained at 1550 °C to 1740 °C and compared to the available ther

APA, Harvard, Vancouver, ISO, and other styles

21

Reinhart, G., F. Ngomesse, F. Bertelli, P. Benigni, A. Campos, and H. Nguyen-Thi. "Investigation of Al-20Sn-10Cu alloy directional solidification by laboratory X-radiography." IOP Conference Series: Materials Science and Engineering 1274, no. 1 (2023): 012054. http://dx.doi.org/10.1088/1757-899x/1274/1/012054.

Full text

Abstract:

Abstract Al-based alloys with a soft phase such as Sn are extensively used for bearing components due to their self-lubricating properties. Al-Sn alloys lack the ability to support heavy loads so the alloying with Cu as a third element provides solution strengthening of the aluminium matrix. A crucial issue in the manufacturing of Al-Sn-Cu alloys is the miscibility gap in the phase diagram of the system. Liquid immiscibility is responsible for severe segregation during the solidification process, due to the large density difference between the Al-rich and Sn-rich liquids, which limits their ut

APA, Harvard, Vancouver, ISO, and other styles

22

Orejana, David, Carlos Villaseca, Emma Losantos, and Pilar Andonaegui. "Petrology and Geochemistry of Highly Differentiated Tholeiitic Magmas: Granophyres in the Messejana–Plasencia Great Dyke (Central Iberia)." Minerals 14, no. 3 (2024): 316. http://dx.doi.org/10.3390/min14030316.

Full text

Abstract:

The Messejana–Plasencia great dyke (MPGD) is a Late Triassic tholeiitic gabbro intrusion related to the Central Atlantic Magmatic Province. Its large outcrop extent (~530 km), combined with its prolongation below the Duero basin (additional 100 km), makes it one of the world’s largest dykes known. We have studied felsic granophyric bodies appearing in its northernmost segment at different scales, from mm-sized (interstitial micrographic pockets) to felsic dykes of up to 10 m thick and 1.5 km long, intruding within the gabbros. Significant differences exist in the mineral and whole-rock composi

APA, Harvard, Vancouver, ISO, and other styles

23

Derimow, Nicholas, and Reza Abbaschian. "Liquid Phase Separation in High-Entropy Alloys—A Review." Entropy 20, no. 11 (2018): 890. http://dx.doi.org/10.3390/e20110890.

Full text

Abstract:

It has been 14 years since the discovery of the high-entropy alloys (HEAs), an idea of alloying which has reinvigorated materials scientists to explore unconventional alloy compositions and multicomponent alloy systems. Many authors have referred to these alloys as multi-principal element alloys (MPEAs) or complex concentrated alloys (CCAs) in order to place less restrictions on what constitutes an HEA. Regardless of classification, the research is rooted in the exploration of structure-properties and processing relations in these multicomponent alloys with the aim to surpass the physical prop

APA, Harvard, Vancouver, ISO, and other styles

24

Kim, Wan, Jinwoo Kim, Je In Lee, and Eun Soo Park. "Development of Al-Based Metallic Glass Composites Containing Pb-Rich Crystalline 2^nd Phase." Korean Journal of Metals and Materials 58, no. 2 (2020): 77–86. http://dx.doi.org/10.3365/kjmm.2020.58.2.77.

Full text

Abstract:

Liquid immiscible alloy systems present a unique opportunity for designing composites with sphere-dispersed and/or interconnected microstructures. Herein, we demonstrate that the addition of Pb in Al<sub>84</sub>TM<sub>10</sub>RE<sub>6</sub> (TM=Ni,Co,Fe,Ti, RE=La,Ce,Nd,Gd,Y) metallic glasses can result in liquid-liquid phase separation in a liquid immiscibility gap and substantially solidifies into a Pb-rich crystalline phase and Al-rich amorphous phase. The Pb-rich phase has a spherical shape and is dispersed in the Al-based metallic glass matrix. The aver

APA, Harvard, Vancouver, ISO, and other styles

25

Gezzaz, Hassan, Cristiana L. Ciobanu, Nigel J. Cook, et al. "Copper-Bearing Magnetite and Delafossite in Copper Smelter Slags." Minerals 13, no. 11 (2023): 1374. http://dx.doi.org/10.3390/min13111374.

Full text

Abstract:

The cooling paths and kinetics in the system Cu-Fe-O are investigated by the empirical micro- and nanoscale analysis of slags from the flash furnace smelter at Olympic Dam, South Australia. We aim to constrain the exsolution mechanism of delafossite (Cu1+Fe3+O2) from a spinel solid solution (magnetite, Fe3O4) and understand why cuprospinel (CuFe2O4) is never observed, even though, as a species isostructural with magnetite, it might be expected to form. Flash furnace slags produced in the direct-to-blister copper smelter at Olympic Dam contain four Cu-bearing phases: Cu-bearing magnetite, delaf

APA, Harvard, Vancouver, ISO, and other styles

26

Honda, Yuki, Hiromasa Niinomi, Jun Nozawa, Junpei Okada, and Satoshi Uda. "Secondary phase formation by liquid immiscibility in Ca3Ta(Ga1−xAlx)3Si2O14 melt." Journal of Crystal Growth 522 (September 2019): 117–24. http://dx.doi.org/10.1016/j.jcrysgro.2019.06.022.

Full text

APA, Harvard, Vancouver, ISO, and other styles

27

Yokoo, Shunpei, Kei Hirose, Shoh Tagawa, Guillaume Morard, and Yasuo Ohishi. "Stratification in planetary cores by liquid immiscibility in Fe-S-H." Nature Communications 13, no. 1 (2022). http://dx.doi.org/10.1038/s41467-022-28274-z.

Full text

Abstract:

AbstractLiquid-liquid immiscibility has been widely observed in iron alloy systems at ambient pressure and is important for the structure and dynamics in iron cores of rocky planets. While such previously known liquid immiscibility has been demonstrated to disappear at relatively low pressures, here we report immiscible S(±Si,O)-rich liquid and H(±C)-rich liquid above ~20 GPa, corresponding to conditions of the Martian core. Mars’ cosmochemically estimated core composition is likely in the miscibility gap, and the separation of two immiscible liquids could have driven core convection and stabl

APA, Harvard, Vancouver, ISO, and other styles

28

Vlasov, Kirill, Andreas Audétat, and Hans Keppler. "H2-H2O immiscibility in Earth’s upper mantle." Contributions to Mineralogy and Petrology 178, no. 7 (2023). http://dx.doi.org/10.1007/s00410-023-02019-7.

Full text

Abstract:

AbstractImmiscibility between water and hydrogen-rich fluids may be responsible for the formation of super-reduced mineral assemblages and for the early oxidation of Earth´s upper mantle. In the current study, we present new data on the critical curve in the H2-H2O system to 1400 ℃ and 4 GPa. We utilized a synthetic fluid inclusion method to trap fluids at high P–T conditions within quartz and olivine crystals. Experiments were performed in a piston-cylinder type apparatus, employing a double-capsule technique. The inner capsule contained the crystal and fluids of interest, while the outer ser

APA, Harvard, Vancouver, ISO, and other styles

29

Abdeyazdan, Hamed, Maksym Shevchenko, and Evgueni Jak. "Experimental and thermodynamic modeling study of phase equilibria in the PbO–NiO–SiO₂ system." Journal of the American Ceramic Society, November 2023. http://dx.doi.org/10.1111/jace.19523.

Full text

Abstract:

AbstractAn integrated experimental and thermodynamic modeling investigation of the phase equilibria in the PbO–NiO–SiO2 system in air and also in equilibrium with liquid metal has been undertaken to better characterize the chemical reactions taking place in the Ni‐containing Pb processing slags. New experimental phase equilibria data at 720°C–1740°C were obtained for this system using high‐temperature equilibration of synthetic mixtures with predetermined compositions in sealed silica ampoules or in Au/Pt–Ir foils, a rapid quenching technique, and electron probe x‐ray microanalysis of the equi

APA, Harvard, Vancouver, ISO, and other styles

30

Braun, Cordula, Liuda Mereacre, Zheng Chen, and Adam Slabon. "Closing the yellow gap with Eu- and Tb-doped GaN: one luminescent host resulting in three colours." Scientific Reports 12, no. 1 (2022). http://dx.doi.org/10.1038/s41598-022-06148-0.

Full text

Abstract:

AbstractGallium nitride (GaN) is a key material when it comes to light-emitting diodes (LEDs) and has pushed the LED revolution in lighting and displays. The concept of down-conversion of a GaN-based blue LED offers the possibility to provide efficient generation of monochromatic, high-color purity light resulting in a highly efficient warm-white all-nitride phosphor-converted light emitting diode (pc-LED). Although the down conversion of blue light from InGaN LEDs has become a dominant technique for producing white light, there are still some technical challenges, e.g. the immiscibility of Ga

APA, Harvard, Vancouver, ISO, and other styles

31

Sayir, Ali, and Serene C. Farmer. "Directionally Solidified Mullite Fibers." MRS Proceedings 365 (1994). http://dx.doi.org/10.1557/proc-365-11.

Full text

Abstract:

ABSTRACTDirectionally solidified fibers with nominal mullite compositions of 3Al2O3·2SiO2 were grown by the laser heated float zone (LHFZ) method at NASA Lewis. High resolution digital images from an optical microscope evidence the formation of a liquid-liquid miscibility gap during crystal growth. Experimental evidence shows that the formation of mullite in aluminosilicate melts is in fact preceded by liquid immiscibility. The average fiber tensile strength is 1.15 GPa at room temperature. The mullite fibers retained 80 % of their room temperature tensile strength at 1450 °C. SEM analysis rev

APA, Harvard, Vancouver, ISO, and other styles

32

Paulson, C. A., A. B. Ellis, and T. F. Kuech. "Near-field Scanning Optical Microscopy and Electron Microprobe Microscopy Investigations of Immiscibility Effects in Indium Gallium Phosphide Grown by Liquid Phase Epitaxy." MRS Proceedings 667 (2001). http://dx.doi.org/10.1557/proc-667-g2.7.

Full text

Abstract:

ABSTRACTWe have used Near-field Scanning Optical Microscopy (NSOM) and Electron Probe Microanalysis (EPMA) to study the topographic and microscopic optical properties of indium gallium phosphide (In1−xGaxP) samples grown by Liquid Phase Epitaxy (LPE) on gallium arsenide substrates. Photoluminescence (PL) intensity images gathered using NSOM exhibit strong, highly localized variations in the optical properties of these samples that are seen to occur roughly in registry with the surface topography. Shifts in the PL peak position (by 27 meV) occur across highly mismatched samples with high In con

APA, Harvard, Vancouver, ISO, and other styles

33

Khartcyzov, Georgii, Maksym Shevchenko, Evgenii Nekhoroshev, and Evgueni Jak. "Integrated experimental and thermodynamic modeling study of phase equilibria in the PbO‐CaO‐AlO_1.5 system in air." Journal of the American Ceramic Society, January 3, 2025. https://doi.org/10.1111/jace.20351.

Full text

Abstract:

AbstractThe present study focused on the phase equilibria in the PbO‐CaO‐AlO1.5 and PbO‐CaO systems in air. The high‐temperature phase equilibria in these systems were studied using the high‐temperature equilibration and quenching technique. The compositions of phases present in the quenched samples were then measured using the electron probe X‐ray microanalysis. The liquidus of the PbO‐CaO‐AlO1.5 system in air, including Ca3Al2O6, Ca12Al14O33, (Ca,Pb)Al2O4, CaAl4O7, (Ca,Pb)Al12O19, Ca2PbO4, corundum (Al2O3), lime (CaO), massicot (PbO), Pb9Al8O21, PbAl2O4, and PbCa2Al8O15 primary phase fields

APA, Harvard, Vancouver, ISO, and other styles

34

Khartcyzov, Georgii, Maksym Shevchenko, Evgenii Nekhoroshev, and Evgueni Jak. "Integrated experimental and thermodynamic modeling study of phase equilibria in the “CuO_0.5”–CaO–AlO_1.5 system." Journal of the American Ceramic Society, May 28, 2025. https://doi.org/10.1111/jace.20698.

Full text

Abstract:

AbstractThe phase equilibria in the “CuO0.5”–CaO–AlO1.5 system in equilibrium with Cu metal were investigated as part of the integrated experimental and thermodynamic modeling study of phase equilibria in the Cu–Pb–Zn–Fe–Ca–Si–Al–Mg–O–S–(As, Sn, Sb, Bi, Ag, Au, Ni, Cr, Co, and Na) gas/oxide liquid/matte/speiss/metal/solids system in support of the development and optimization of pyrometallurgical processes. The equilibration and quenching technique, followed by the electron probe X‐ray microanalysis (EPMA) was used in the present study. The liquidus of the “CuO0.5”–CaO–AlO1.5 system in equilib

APA, Harvard, Vancouver, ISO, and other styles

35

Ho, I. H., and G. B. Stringfellow. "Incomplete Solubility in Nitride Alloys." MRS Proceedings 449 (1996). http://dx.doi.org/10.1557/proc-449-871.

Full text

Abstract:

ABSTRACTA model based on the valence-force-field (VFF) model has been developed specifically for the calculation of the irascibility gaps in III-V nitride alloys. In the dilute limit, this model allows the relaxation of the atoms on both sublattices. It was found that the energy due to bond stretching and bond bending was lowered and the solubility limit was increased substantially when both sublattices were allowed to relax to distances as large as the sixth nearest neighbor positions. Using this model, the equilibrium mole fraction of N in GaP was calculated to be 6×l0−7 at 700°C. This is sl

APA, Harvard, Vancouver, ISO, and other styles

36

Li, Zhuoqi, Michael Anenburg, Chun-wan Wei, Nongxin Yuan, and Cheng Xu. "Carbonatite metasomatism in a subvolcanic setting: breccia at the Badou carbonatite in the North China Craton and implications for magmatic evolution and eruptive style." Journal of Petrology, June 19, 2024. http://dx.doi.org/10.1093/petrology/egae069.

Full text

Abstract:

Abstract The genesis and primary compositions of carbonatite melts are enigmatic owing to their reactivity and resulting contamination in the mantle and crust. This overprints earlier uncontaminated compositions and obscures their origins. The subvolcanic Badou carbonatite in the North China Craton is characterized by brecciated textures and comprises pristine clinopyroxene, mica, and apatite phenocrysts in a mixed, carbonate-silicate matrix. Here, we provide mineralogical, textural, and major and trace elemental results to reveal the mantle derivation of the Badou carbonatite melt, and its co

APA, Harvard, Vancouver, ISO, and other styles

37

Еранян, Л. С., А. В. Маргарян та К. М. Гамбарян. "Анализ смешиваемости компонентов в тройной материальной системе BN-Si-C". Proceedings of NAS RA. Physics, 8 травня 2024, 79–86. http://dx.doi.org/10.54503/0002-3035-2024-59.1-79.

Full text

Abstract:

Монокристаллический нитрид бора с кубической симметрией (c-BN) представляет собой сверхтвердый материал с широкой запрещенной зоной и со значительным потенциалом для применения при экстремальных температурах и давлениях. Тем не менее, его практическому использованию в технологии и материаловедении препятствуют две основные проблемы: (i) сложность производства высококачественных пленок c-BN и (ii) проблема эффективного n- и pлегирования его матрицы. Данное теоретическое исследование посвящено выяв-лению пределов растворимости кремния (Si) и углерода (C) в c-BN и нитриде бора типа вюрцит (WZ-BN)

APA, Harvard, Vancouver, ISO, and other styles

38

Baird, James K., and Jeffrey J. Weimer. "The chemical reaction critical point exponent." Journal of Chemical Physics 162, no. 24 (2025). https://doi.org/10.1063/5.0268329.

Full text

Abstract:

The principle of critical point universality is thought to govern critical phenomena in systems as disparate as ferromagnets, pure fluids, and binary liquid mixtures exhibiting a miscibility gap ending in a critical point of solution. The goal of any critical point theory is to determine how a given thermophysical property of interest depends upon the reduced temperature, t=(T−Tc)/Tc, where T is the thermostat temperature, and Tc is the critical temperature. Two theoretical formulations are available. The Landau mean field theory ignores fluctuations in composition in the critical region, whil

APA, Harvard, Vancouver, ISO, and other styles

39

Fredi, Giulia, Andrea Dorigato, Alessandro Dussin, et al. "Compatibilization of Polylactide/Poly(ethylene 2,5-furanoate) (PLA/PEF) Blends for Sustainable and Bioderived Packaging." Molecules 27, no. 19 (2022). https://doi.org/10.3390/molecules27196371.

Full text

Abstract:

Despite the advantages of polylactide (PLA), its inadequate UV-shielding and gas-barrier properties undermine its wide application as a flexible packaging film for perishable items. These issues are addressed in this work by investigating the properties of melt-mixed, fully bioderived blends of polylactide (PLA) and poly(ethylene furanoate) (PEF), as a function of the PEF weight fraction (1–30 wt %) and the amount of the commercial compatibilizer/chain extender Joncryl ADR 4468 (J, 0.25–1 phr). J mitigates the immiscibility of the two polymer phases by decreasing and homogenizing t

APA, Harvard, Vancouver, ISO, and other styles

We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!