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refractory material shows the characteristic phenomena like temperature applications

  • refractory material shows the characteristic

    refractory material shows the characteristic phenomena like temperature applications Nacre-like ceramic refractories for high temperature ... 2018-4-1 · A nacre-like ceramic containing alumina platelets separated by aluminium borate (9Al 2 O 3 ·2B 2 O 3) as refractory secondary phase was designed to obtain ceramic composites with enhanced ...

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  • OSA | Temperature stability of thin film refractory ...

    The observed maximum operating temperature in air (i.e. the annealing temperature after which metallic behaviour was lost) for each material is plotted against the plasma frequency as reported in literature [19,21,22,23,24,35]. In general, it appears oxide materials such as SRO exhibit superior stability in air than the pure metals and TiN ...

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  • Nacre-like ceramic refractories for high temperature ...

    2018-4-1 · A nacre-like ceramic containing alumina platelets separated by aluminium borate (9Al 2 O 3 ·2B 2 O 3) as refractory secondary phase was designed to obtain ceramic composites with enhanced mechanical properties at high temperature.

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  • Refractory concretes uniaxial compression behaviour

    2011-12-1 · Two refractory concretes with the same matrix composition, one based on andalusite aggregate and the other on bauxite aggregate, have been studied at temperatures ranging from room temperature to 1200 °C maximal temperature.Samples dried at 110 °C during 24 h to create dried standard specimens and others, fired at different temperatures, were subjected to several uniaxial …

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  • Recent advances in silica-alumina refractory: A review ...

    2014-6-1 · Aluminosilicate refractories are manufactured using refractory clays, sillimanite minerals, bauxite, and mixtures of alumina and silica sand. They will refer, somewhat arbitrarily, to common crystalline compounds with melting temperatures of at least 1500 °C .The major categories of traditional refractories are fire clays, high alumina, and silica.

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  • Multiscale modeling for the simulation of damage

    2013-4-1 · Thus, large R values are feasible for a material to be used in refractory applications. 3. Numerical examples and discussion3.1. Calculation of stress intensity factors and R-curves. The anisotropic, non-linear material damage law is implemented into the Finite Element Code ABAQUS using the subroutine environment UMAT.

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  • Modelling of high-chromia refractory spalling in

    2008-12-1 · One of the most severe refractory degradation mechanisms is spalling, which can occur by either volume-expansion phenomena (compressive stresses) or by volume-shrinkage phenomena (tensile stresses). A volume-shrinkage model is benchmarked to high-chromia refractory material properties and performance under gasifier operating conditions.

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  • Development and exploration of refractory high

    2018-10-1 · Open literature publications, in the period from 2010 to the end of January 2018, on refractory high entropy alloys (RHEAs) and refractory complex concentrated alloys (RCCAs) are reviewed. While RHEAs, by original definition, are alloys consisting of five or more principal elements with the concentration of each of these elements between 5 and 35 at.%, RCCAs can contain three or …

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  • Top 10 Materials with the Highest Melting Point in the

    Distinctive points of the curves could be correlated to specific corrosion phenomena, like melting or infiltration. The applied methods include a first characterization of the material with open porosity, density and in-situ high-temperature (HT)-RFDA measurements as well as a study of the slag behavior.

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  • OSA | Temperature stability of thin film refractory ...

    The observed maximum operating temperature in air (i.e. the annealing temperature after which metallic behaviour was lost) for each material is plotted against the plasma frequency as reported in literature [19,21,22,23,24,35]. In general, it appears oxide materials such as SRO exhibit superior stability in air than the pure metals and TiN ...

    Get Price
  • Development and exploration of refractory high

    2018-6-8 · Poor room temperature (RT) ductility, poor oxidation resistance, and high density limit the applications of many conventional refractory alloys, and these motivate RCCA research efforts on oxidation resistance, low density compositions, and on the development of …

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  • An Index of Refractory Organics - EPA

    ----- environment. A material described as refractory is characterized by a resis- tance to degradation to 002» H20 and N03 (end products of the ambient aquatic oxidation). 5. TOD» Total Oxygen Demand - Determined on the Ionics Kfcdel 225 TOD analyzer (mg/L as 02). This is a high temperature (900°C) catalyzed aerobic oxidation. 6.

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  • Combustion joining of refractory materials:

    Simultaneously, carbon from the composite material is dissolved into the liquid-metal layer, leading to the formation of a refractory phase (TiC) with a much higher viscosity than the metal. Because the characteristic squeezing rate is much higher than the characteristic diffusion time, the thickness of the final joining layer is essentially ...

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  • Olivine refractory bricks for heat storage applications ...

    The self-bonded material was fired at approximately 1454° C. (2650° F.), the kaolin-bonded material was sintered at approximately 1427° C. (2600° F.). The results obtained in this phase of the study are summarized in Table V, which shows a range of fired densities of 2.563-2.805 g/cm 3. The green and fired densities were found to depend ...

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  • US4306030A - Carbon-containing refractory - Google

    The invention relates to precluding the shortcomings intrinsic to the conventional unburned carbon-containing refractory bricks, i.e., oxidization under high temperature conditions and the incidental decarbonization, the phenomenon of exfoliation and detachment of the fragile layers, and more particularly to obtaining thereby unburned carbon-containing refractory bricks having the high ...

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  • Cathodoluminescence (CL) Microscopy Application to ...

    2016-8-29 · Refractories are ceramic materials possessing high thermal shock properties and slag corrosion resistance, as well as creep resistance at high temperatures. They are used in large quantities in steel making furnaces, metal smelting vessels, and glass melting tanks, and are made from very refractory minerals such as lime, periclase, corundum, spinel, and zirconia.

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  • Flash Sintering of Alumina-based Ceramics

    2017-4-5 · ii. The material shows a transition from insulator to conductor-like[6–8,16]; iii. The sample starts to emit light[17–20]. If these three phenomena occur together, the Flash Event (FE) takes place. In some materials like titania and zirconia during the FE also texture [21] and new phases

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  • Roadmap on metasurfaces - IOPscience

    2019-7-1 · As refractory plasmonic materials are inherently robust, they often require special growth conditions to reduce optical losses and require sophisticated etch chemistry to pattern them. A new material platform would also require the characterization of high-temperature optical properties to design the MS structures for different applications.

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  • Optical Absorption and Thermal Effects of Plasmonic ...

    2016-9-12 · Temperature change can strongly modify the field enhancement and absorption characteristics of plasmonic devices. A deep understanding of the temperature dependence of the optical and thermal phenomena in plasmonic structures has a great importance in a variety of research areas, including plasmonics and near‐field irradiative heat transfer.

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  • Material Science and Engineering Notes - Wiki-How

    2021-5-29 · Refractory Materials. In general, Products applied at temperatures greater than 600*C are referred to as refractories. In particular, the materials which withstand a temperature up to 1500* C, it is called a refractory material. If the temperature is more than 1800*C, it is designated as highly refractory. Thermal Expansion of Refractory Material

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  • An Index of Refractory Organics - EPA

    ----- environment. A material described as refractory is characterized by a resis- tance to degradation to 002» H20 and N03 (end products of the ambient aquatic oxidation). 5. TOD» Total Oxygen Demand - Determined on the Ionics Kfcdel 225 TOD analyzer (mg/L as 02). This is a high temperature (900°C) catalyzed aerobic oxidation. 6.

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  • Combustion joining of refractory materials:

    Simultaneously, carbon from the composite material is dissolved into the liquid-metal layer, leading to the formation of a refractory phase (TiC) with a much higher viscosity than the metal. Because the characteristic squeezing rate is much higher than the characteristic diffusion time, the thickness of the final joining layer is essentially ...

    Get Price
  • Olivine refractory bricks for heat storage applications ...

    The self-bonded material was fired at approximately 1454° C. (2650° F.), the kaolin-bonded material was sintered at approximately 1427° C. (2600° F.). The results obtained in this phase of the study are summarized in Table V, which shows a range of fired densities of 2.563-2.805 g/cm 3. The green and fired densities were found to depend ...

    Get Price
  • 10.1016/j.jmatprotec.2004.04.365 | DeepDyve

    1 Introduction There is a trend to increase the use of unshaped refractory castables in various industries like steel-making, cement production, energy production and waste incineration. In several applications, they are more economical and easier to use than shaped refractories and they can exhibit excellent mechanical properties.

    Get Price
  • Roadmap on metasurfaces - IOPscience

    2019-7-1 · As refractory plasmonic materials are inherently robust, they often require special growth conditions to reduce optical losses and require sophisticated etch chemistry to pattern them. A new material platform would also require the characterization of high-temperature optical properties to design the MS structures for different applications.

    Get Price
  • Optical Absorption and Thermal Effects of Plasmonic ...

    2016-9-12 · Temperature change can strongly modify the field enhancement and absorption characteristics of plasmonic devices. A deep understanding of the temperature dependence of the optical and thermal phenomena in plasmonic structures has a great importance in a variety of research areas, including plasmonics and near‐field irradiative heat transfer.

    Get Price
  • Heating events in the nascent solar system recorded

    Equilibrium condensation of solar gas is often invoked to explain the abundance of refractory elements in planets and meteorites. This is partly motivated, by the observation that the depletions in both the least and most refractory rare earth elements (REEs) in meteoritic group II calcium-aluminum–rich inclusions (CAIs) can be reproduced by thermodynamic models of solar nebula condensation ...

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  • Defect Structure Versus Superconductivity in MeB2 ...

    2012-10-17 · Figure 14 shows the magnetization as a function of temperature measured in the zero field cooled (ZFC) and field cooled (FC) condition in the K 0.05 MoO 2-sample. A superconducting temperature can be clearly observed at T C = 4 K in the sample. Furthermore, a magnetic ordering is noticed at T M = 65 K.

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  • 10.1016/j.jmatprotec.2004.04.365 | DeepDyve

    1 Introduction There is a trend to increase the use of unshaped refractory castables in various industries like steel-making, cement production, energy production and waste incineration. In several applications, they are more economical and easier to use than shaped refractories and they can exhibit excellent mechanical properties.

    Get Price
  • Mathematical Modeling of Flow and Heat Transfer

    2010-6-1 · Beerkens, 5 in addition to reviewing furnace modeling literature, described key phenomena involved in glass melting and auxiliary processes (e.g., evaporation from glass melt surface, refractory corrosion) and summarized transport equations governing flow and heat transfer phenomena in the glass melt. One of the most important areas highlighted ...

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  • Structural and optical characterization of Cr2O3 ...

    2014-2-25 · The structural, optical and dielectric properties of as-grown Cr 2 O 3 nanostructures are demonstrated in this paper. FTIR spectroscopy, revealed the characteristic peaks of Cr–O bond stretching vibrations. Energy band gap (3.2 eV) of the nanostructures has been determined using the results of UV-VIS-NIR spectrophotometer. The dielectric properties of the material were checked in …

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  • Material platforms for optical metasurfaces

    Optical metasurfaces are judicously engineered electromagnetic interfaces that can control and manipulate many of light’s quintessential properties, such as amplitude, phase, and polarization. These artificial surfaces are composed of subwavelength arrays of optical antennas that experience resonant light-matter interaction with incoming electromagnetic radiation. Their ability to ...

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  • “Hot” in Plasmonics: Temperature‐Related Concepts

    Ding et al. demonstrated the assembly of light-induced actuating nanotransducers (ANTs), see Figure 4a-i,ii. 48 Such actuators allow the transformation of thermal energy into physical motion, essential to applications in robotics, 208 sensing, 210 storage devices, and smart windows. 211 By binding the temperature-responsive polymer pNIPAM to ...

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  • Processing of solid solution, mixed uranium/refractory ...

    2019-8-9 · Temperature measurements were made using a MaxlineTM, model MX-MRO4, temperature acquisition and control system with infrared thermometers. As discussed above, these so-called 'two color' sensors operate by measuring the ratio of two infrared wavelengths, 63 0.7 and 1.07 microns, and are not susceptible to errors in temperature measurement owing to

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  • spectroscopy ch 3 - New Jersey Institute of Technology

    2005-11-28 · Table .3 shows the characteristic absorption wavelengths for some functional groups. For instance a peak found at 2960-2870 cm -1 is usually due to the absorbance by the methyl group. Other frequencies indicate certain functional groups such as aromatic rings, OH groups, NH groups, etc. Absorbance peaks correlated with the presence of certain ...

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  • Articles | International Journal of GEOMATE

    2021-5-31 · The shear strength of MSWIBA is like natural sand. The resilient modulus decreased with the increase of deviator stress in the case of R90 sample and increased with the increase of deviator stress in the case of R95. The numerical method results also show that MSWIBA material can be used as construction material such as roadbed and foundation ...

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  • Material platforms for optical metasurfaces in ...

    2018-6-27 · Recently, it has been shown that thin dielectric coated nanostructured metal can be used for refractory plasmonics and nonlinear optics applications, by improving the temperature stability of the structured metal , . For stronger field confinement and high-temperature applications beyond noble metals’ capabilities, new plasmonic materials are ...

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  • Roadmap on plasmonics - IOPscience

    2018-3-9 · 1 Center for Nano-Optics (CeNO) and Department of Physics and Astronomy, Georgia State University, Atlanta, GA 30303, United States of America . 2 Hildegard-Jadamowitz-Str.26, 10243 Berlin, Germany . 3 Center for Nano Optics, University of Southern Denmark, Campusvej 55, DK-5230 Odense M, Denmark . 4 School of Electrical & Computer Engineering and Birck Nanotechnology Center, …

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  • Emerging interface materials for electronics thermal ...

    Thermal management is becoming a critical technology challenge for modern electronics with decreasing device size and increasing power density. One key materials innovation is the development of advanced thermal interfaces in electronic packaging to enable efficient heat dissipation and improve device perfor Journal of Materials Chemistry C Recent Review Articles Journal of Materials Chemistry ...

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  • Understanding the heap biooxidation of sulfidic

    An investigation has been conducted into the nature and rates of the physical, chemical, biological, and thermal processes involved in the heap biooxidation of pyrite from refractory gold ores. A heap-scale model of the ideal process was developed, aided by a systematic experimental approach, which accounts for the following phenomena. Grain-Scale Kinetics - The thermal and chemical ...

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  • Thermal degradation of refractory layered

    Emissivity-tunable metamaterials of layered refractory metal and dielectric have great potentials as a simple thermophotovoltaic (TPV) selective emitter due to its near-omnidirectional, polarization-independent, and broadband selective emissivity. However, it is known that the stability of the layered structure is limited by the oxidation of metals. While there still exists ambiguity ...

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  • Plasmonic properties of refractory titanium nitride

    The development of plasmonic and metamaterial devices requires the research of high-performance materials, alternative to standard noble metals. Renewed as refractory stable compound for durable coatings, titanium nitride has been recently proposed as an efficient plasmonic material. Here, by using a first principles approach, we investigate the plasmon dispersion relations of TiN bulk and we ...

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  • Materials Science News - Elsevier

    2021-5-26 · The material has so-called charge-density wave (CDW) phases where the crystal distorts like a wave in response to temperature and light intensity. These structural changes have a profound effect on the material’s electronic properties including resistivity, which enables the material to demonstrate a metal-to-insulator transition.

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  • aluminabricks, Author at RS Kiln Refractory Bricks

    2021-4-1 · The heavy refractory materials used in ceramic kilns are similar to those in the glass industry, mainly acid refractory bricks, neutral refractory bricks, and some special refractory bricks. The basis for selecting bricks is mainly determined by the firing temperature of the kiln, the atmosphere, the corrosiveness of the molten material, and ...

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  • “Hot” in Plasmonics: Temperature‐Related Concepts

    Ding et al. demonstrated the assembly of light‐induced actuating nanotransducers (ANTs), see Figure 4a‐i,ii. 48 Such actuators allow the transformation of thermal energy into physical motion, essential to applications in robotics, 208 sensing, 210 storage devices, and smart windows. 211 By binding the temperature‐responsive polymer pNIPAM ...

    Get Price
  • Advanced Materials: Vol 31, No 40 - Wiley

    2019-10-4 · In article number 1903239, Junsheng Yu, Wei Huang, Ziyi Ge, Tobin J. Marks, Antonio Facchetti, and co‐workers present a spontaneous passivation method to greatly improve the performance of perovskite solar cells (PSCs) by using a zwitterionic small‐molecule electrolyte.This bottom‐up passivation is a novel and promising strategy to overcome outstanding issues impeding PSC …

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  • Material properties particularly suited to be measured ...

    The fact that measurements done on a 2D material weakly bound to a substrate can be used to extract the value of κ for the free-standing 2D material, is a big experimental advantage which should make it possible to measure κ(T) for the free-standing material simply by varying the temperature of the substrate. So far no such temperature ...

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