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xrd of refractory material using method

  • XRD characterization of refractory powders by

    A method has been developed for rapid determination of ZrO2, HfO2, Al2O3, SiO2, Fe2O3, TiO2, CaO, MgO and Y2O3 in zirconia refractory by X-ray fluorescence spetrometry.

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  • (PDF) Evaluation of Non Crystalline Phase in AZS ...

    XRD pattern of refractory material and reference patterns of identified crystallographic structures Electron microscopy studies of the microstructure. In order to gain more understanding on the source of the inclusions found in the glass products, a detailed inspection of the refractory materials is essential.

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  • Characterization of ceramic oxide refractories by XRF

    of refractory material for high thermal applications [5,26], and ... XRD technique for structure investigation, and SEM technique for ... Rice husk silica was obtained using alkali extraction method

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  • Analysis of refractory materials - EAG Laboratories

    2013-12-24 · compared. These were obtained by three different methods using in the X ray powder diffraction XRD ( ) techniques. The first method consists in the linear interpolation of the base lines of the diffractograms compared to the amorphous silica and the fully crystalline quartz. The other two methods are based in the application of the Rietveld method.

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  • Preparation of refractory cordierite using amorphous rice ...

    Refractory metal diboride is a kind of excellent ultra-high temperature ceramics and could be applied as thermal shielding material for supersonic aircraft. In this paper, a two-step reaction process for the synthesis of refractory metal diboride powders was proposed using refractory metal oxide, carbon black (C), B 4 C, and calcium Ca as raw ...

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  • Evaluation of Non Crystalline Phase in AZS Refractories by ...

    2016-2-18 · of refractory material for high thermal applications [5, 26], and found that the fracture toughness increases with increasing sin- tering temperature from 1250 to 1 300 ° …

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  • A universal method for the synthesis of refractory

    2016-5-15 · Fig. 2(a)–(f) displays the XRD patterns of the samples sintered at different temperatures.The phases identified with the PDF diffraction lines using search-match method , clearly show the presence of spinel (PDF-21-11520) with the most intense peak at 2θ=36.92°, µ-cordierite (PDF-14-0249) at 2θ=13.45°, α-cordierite (PDF-13-0294) at 2θ=10.48°, and cristobalite (PDF-39-1425) at 2θ=21.2°.

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  • XRD characterization of refractory powders by

    2021-5-22 · X-ray diffraction (XRD) is an effective method for identifying the phases present in unknown polycrystalline powders. The analysis is performed by comparing the diffraction pattern collected from an unknown sample with the diffraction patterns of known compounds. The automated process is called Search/Match (S/M) analysis. XRD is an important technique in the manufacture of ceramic materials.

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  • Characterization of ceramic oxide refractories by XRF

    A method has been developed for rapid determination of ZrO2, HfO2, Al2O3, SiO2, Fe2O3, TiO2, CaO, MgO and Y2O3 in zirconia refractory by X-ray fluorescence spetrometry.

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  • Characterization and Qualitative Analysis of Some

    2001-4-21 · 2.1 X-ray Diffraction (XRD) Analysis Representative samples of the clays were separately crushed and milled to fine particles. The mineral phases within the samples were identified by powdered X-ray diffractometry method. The samples were first subjected to X-ray scanning using the Philips PW 1830 X-ray diffractometry with a cu-anode.

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  • XRD characterization of refractory powders by

    2021-4-7 · X-ray diffraction (XRD) is an effective method for identifying the phases present in unknown polycrystalline powders. The analysis is performed by comparing the diffraction pattern collected from an unknown sample with the diffraction patterns of known compounds. The automated process is called Search/Match (S/M) analysis. XRD is an important technique in the manufacture of ceramic materials.

    Get Price
  • Ceramic Materials Characterization Using X-Ray

    2020-7-2 · Powder X-ray diffraction (XRD) techniques can trace their origin to the pioneering work of Debye and Scherrer in Europe (1916) and Hull in the U.S. (1917).1 Their results dispelled the belief that grinding a single crystal to a powder would destroy crystallinity. In 1938, Hanawalt, Rinn and Frevel published over 1,000 reference XRD patterns tabulated as diffraction spacings (d-spacings) and ...

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  • Refractory Material Testing - Lab Testing Services for ...

    2020-3-5 · The concept of testing CCS of a refractory material has perhaps, come from metallurgy. This is because for any refractory brick it is rather; rare that it would fail simply due to load on it in cold condition and therefore, the determination of cold crushing strength does not appear to be important from that point of view.

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  • Technological properties of high alumina refractories with ...

    2018-11-23 · batch was done by using XRD and scanning electron microscope as well as EDAX. The amount of water that rendered the raw clay material plastic (i.e., plasticity) was determined using the Atterberg method (BS 13771975). Bulk densities of the calcined bauxite and the clay raw material were determined. Densification parameters of the fired

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  • A Simple and Novel Route for Synthesis of Vanadium

    2019-7-12 · and this method is also regarded as an economical method for commercial production [17,18]. In this paper, it developed a simple and convenient route by combining solution combustion synthesis (SCS) and carbother-mal reduction method to prepare VC nanoparticles. Solution combustion synthesis (SCS) is a well-known method for the prepara -

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  • Studies on Synthesis and Characterization of Magnesia ...

    2018-12-29 · The material has been sintered in the ... fractometer (PANalytical) by X’Celerator operating at 40 kV and 30 mA, using Ni-filtered CuKα radiation. The XRD data were recorded with step size of 0.05˚ (2θ), step time of 75 sec, from 10˚ to 90˚. ... tangular bars was measured by three point bending method using an Instron-1185 universal ...

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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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  • Materials | Free Full-Text | Fabrication of Refractory ...

    XRD was used to identify the crystalline phases of the material and reveal information about its chemical composition, by comparing the obtained data to that in the reference databases. The XRD technique is a non-destructive test, and it is an important tool for evaluating minerals, polymers, corrosion products, and unknown materials using ...

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  • Characterization of the aluminas formed during the

    2020-9-23 · the XRD patterns identified using the JCPDS data base and the DIFFRACplus EVA were software by Bruker AXS. XRD pattern refinement method . It is well known that the Rietveld method is a powerful tool for calculation of structural parameters from diffraction patterns of polycrystalline bulk materials recorded in Bragg-Brentano geometry.

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  • X-ray diffraction (XRD) | Rigaku

    2021-5-23 · X-ray diffraction (XRD) is one of the most important non-destructive tools to analyze all kinds of matter—ranging from fluids, to powders and crystals. From research to production and engineering, XRD is an indispensable method for materials characterization and quality control.

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  • Combining XRF and XRD analyses and sample

    A method was developed where the sample is pre-reacted for an hour in a muffle furnace at 500ºC, above the melting temperature of LiNO 3 but below the dissociation temperature. The reaction was evaluated using Differential Scanning Calorimetry (DSC) and XRD to evaluate the reaction and confirm completion of the

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  • Ceramic Materials Characterization Using X-Ray

    2020-7-2 · Powder X-ray diffraction (XRD) techniques can trace their origin to the pioneering work of Debye and Scherrer in Europe (1916) and Hull in the U.S. (1917).1 Their results dispelled the belief that grinding a single crystal to a powder would destroy crystallinity. In 1938, Hanawalt, Rinn and Frevel published over 1,000 reference XRD patterns tabulated as diffraction spacings (d-spacings) and ...

    Get Price
  • MONOCLINIC - TETRAGONAL ZIRCONIA

    2016-2-25 · range between 25-1400-100°C using reversible mode with heating rate of 10°C∙min-1. Oxidizing atmosphere were used by introducing analytical air and using alumina crucibles and calcinated alumina (Al 2 O 3) as reference. XRD pattern treatments Garvie Nicholson (G-N) method is based in X-ray diffraction and estimate the m-ZrO 2 and t-ZrO 2 ...

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  • Analysis and Prediction of Corrosion of Refractory ...

    2020-10-23 · Analysis of the corrosion product by X-ray diffraction (XRD) showed no corrosion product formation. Studies have shown that thermodynamic calculation can accurately predict the thermodynamic mechanism of alkali metal corrosion to refractory materials, and MgO is a good anti-alkali metal corrosion refractory material.

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  • PRODUCTION AND CHARACTERIZATION OF CLAY

    2014-7-30 · production of refractory materials for industrial use. The current work is aimed at this the possibility of utilizing these vast available material (palm kernel shell) in the fabrication of refractory materials. In view of all these facts, there is therefore every need to produce, characterize, evaluate and improve the refractory properties of

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  • Manufacturing and Analysis of High-Performance

    Refractory high-entropy alloys (HEAs) have excellent mechanical properties, which could make them the substitutes of some superalloys. However, the high melting point of refractory HEAs leads to processing problems when using traditional processing techniques. In this study, a single BCC solid solution of NbMoTaW alloy was formed by selective laser melting (SLM) with a linear energy density of ...

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  • Preparation of Refractory Calcium Aluminate Cement

    2016-8-16 · XRD and the mechanical strength was evaluated by splitting tensile tests, using commercial cement as a reference. Furthermore, the phases were semi-quantified using the Rietveld method. The results show that hydration and sonochemical action increased the …

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  • Analysis and Prediction of Corrosion of Refractory ...

    2020-10-23 · Analysis of the corrosion product by X-ray diffraction (XRD) showed no corrosion product formation. Studies have shown that thermodynamic calculation can accurately predict the thermodynamic mechanism of alkali metal corrosion to refractory materials, and MgO is a good anti-alkali metal corrosion refractory material.

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  • Introduction: X-Ray Diffraction

    2019-11-19 · • XRD is a powerful experimental technique used to determine the – crystal structure and its lattice parameters (a,b,c,a,b,g) and – spacing between lattice planes (hkl Miller indices)this interplanar spacing (d hkl) is the distance between parallel planes of atoms or ions.

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  • Rietveld Refinement X-Ray Diffraction (XRD)

    The powerful X-Ray Diffraction (XRD) technique, the Rietveld Refinement method was originally used for crystal structure analysis. However, this method is presently used to great effect in Quantitative Phase Analysis affording greater precision over traditional quantitative XRD techniques.

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  • Mineralogical Analyses – Stazione Sperimentale del

    To determine the abundance of glassy phase within a sample of ceramic or refractory material, the method of the internal standard is used: a known quantity of a crystalline phase that is certainly not present in the sample is added to the sample, and a quantitative XRD analysis is carried out. On the basis of the degree of overestimation of the percentage abundance of the internal standard in ...

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  • THE USE OF THE RIETVELD METHOD TO STUDY THE

    size of 0.04 and counting time 1s/step, and using post-diffraction graphite monochromator with a NaI detector. 3. Results and Discussion Qualitative XRD was conducted by comparing the diffraction lines with the standard PCPDF files using search-match method. Based on our investigations in 2009 [22], a search-match method using PDF file

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  • Phase evolution of refractory high-entropy alloy

    The average Williamson–Hall method was used to estimate d and ε after eliminating the instrumental broadening using Si standard [Reference Prince and Stalick 19]. The XRD analysis was carried out using X'Pert HighScore Plus (version 4.1) software (Malvern Panalytical Ltd., Royston, United Kingdom).

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  • PRODUCTION AND CHARACTERIZATION OF CLAY

    2014-7-30 · production of refractory materials for industrial use. The current work is aimed at this the possibility of utilizing these vast available material (palm kernel shell) in the fabrication of refractory materials. In view of all these facts, there is therefore every need to produce, characterize, evaluate and improve the refractory properties of

    Get Price
  • Eco-friendly Synthesis of Magnesium Oxide Nanoparticles ...

    2021-5-20 · half maximum (FWHM) of the XRD patterns using the well- known Scherrer formula: where D is the crystallite size (nm), β is the full width at half maximum of the peak, λ is the X-ray wavelength of Cu Kα= 0.154 nm and θ is the Bragg angle [29]. Using the above method we obtained an average size of 14 nm for MgO nanoparticles.

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  • Defect Study of MgO-CaO Material Doped with CeO2

    2013-9-16 · MgO-CaO refractories were prepared using analytical reagent chemicals of Ca(OH) 2 and Mg(OH) 2 as starting materials and CeO 2 as dopant, then sintered at 1650°C for 3 h. The effect of CeO 2 powders on the defect of MgO-CaO refractories was investigated. The sample characterizations were analyzed by the techniques of XRD and SEM.

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  • Preparation & Characterization of Insulating Rice Husk

    2020-4-30 · Standard method for determining thermal conductivity of refractories by Hot Cross-Wire method as per ASTM C-1113 were used. The thermal conductivity tests are particularly important for insulating refractories where the thermal gradients from the hot face to the cold face dictate the use of a refractory material for the specific uses.

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  • THE USE OF THE RIETVELD METHOD TO STUDY THE

    size of 0.04 and counting time 1s/step, and using post-diffraction graphite monochromator with a NaI detector. 3. Results and Discussion Qualitative XRD was conducted by comparing the diffraction lines with the standard PCPDF files using search-match method. Based on our investigations in 2009 [22], a search-match method using PDF file

    Get Price
  • Int. Journal of Refractory Metals and Hard Materials

    2017-2-10 · Bruker D8 Advance X-ray diffractometer (XRD) with Cu Kα radiation (λ = 0.15418 nm) at 40 kV and 40 mA, using a continuous scan mode. A quick scan at 4°/min was primarily performed within a wide range of 2θ =25–105° to give a general exhibition of diffraction peaks. A slower scan rate of 1°/min was further used over

    Get Price
  • Technological properties of high alumina refractories with ...

    2018-11-23 · batch was done by using XRD and scanning electron microscope as well as EDAX. The amount of water that rendered the raw clay material plastic (i.e., plasticity) was determined using the Atterberg method (BS 13771975). Bulk densities of the calcined bauxite and the clay raw material were determined. Densification parameters of the fired

    Get Price
  • Micro X-Ray Diffraction (µXRD) | Lucideon

    The Micro X-Ray Diffraction (µXRD) method allows for small volumes of material to be probed. A parallel beam of X-rays are collimated to form a small range (between 300 and 1,000 microns in diameter) before irradiating a sample.

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  • Fabrication of Refractory Materials from Coal Fly Ash ...

    2020-8-6 · expensive to manage and di cult to dispose of, and therefore using it in various applications, such as engineering projects, is the most favorable method for the management of this type of waste [33]. The focus was, therefore, to fabricate refractory materials from fly ash, and make contrasting analyses with those fabricated from kaolin.

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  • Recovery of Refractory Metals from Steelmaking Dust

    2017-7-4 · refractory metals whose physical and chemical properties make them valuable elements for the steel industry [1]. These rare refractory metals occur in limited amounts in nature. Thus the need to develop technologies that can be used to recover such refractory metals from secondary sources has been of great interest for many researchers.

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  • Instrumental characterization of clay by XRF, XRD and FTIR

    2019-4-9 · using standard sieves of mesh sizes having geometrical mean particle diameters 140, 100 and 50 μm. The chemical constituents and LOI at 800°C were determined by the Indian standard method (Indian Standard Methods of Chemical Analysis of Fireclay and Refractory Materials 1960). The clay was analysed for its vibrational spectra with

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  • Synthesis of Lithium Oxide Composite with Refractory

    2019-1-31 · with refractory metals (Nb and Mo) are also expected as candidate of cathode material due to its good cyclic stability and battery characteristics [3, 4]. The solid phase method and the liquid phase method have been used in the synthesis of cathode materials. However, productivity in those methods are insufficient for

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  • XRD Phase Identification | Malvern Panalytical

    Powering the next generation of XRD research. Multipurpose X-ray diffractometers for your analytical needs. More details More details ; Technology: X-ray Diffraction (XRD) Measurement type: Phase identification: X-ray tube anode material: Cu /Co (option) Cu, Co,Cr, Mn, Fe, Mo, Ag: More details Request a quote : More details Request a quote

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  • Instrumental characterization of clay by XRF, XRD and FTIR

    2019-4-9 · using standard sieves of mesh sizes having geometrical mean particle diameters 140, 100 and 50 μm. The chemical constituents and LOI at 800°C were determined by the Indian standard method (Indian Standard Methods of Chemical Analysis of Fireclay and Refractory Materials 1960). The clay was analysed for its vibrational spectra with

    Get Price
  • In situ and operando X-ray Diffraction gives insight

    In situ and operando XRD X-ray diffraction (XRD) is a powerful tool for the characterization of battery materials. XRD is a laboratory technique using monochromatic X-rays to probe atoms in a material to reveal structural information, such as crystal form, lattice dimensions, crystallite size, defects in the crystal structure, and preferred ...

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  • Int. Journal of Refractory Metals and Hard Materials

    2017-2-10 · Bruker D8 Advance X-ray diffractometer (XRD) with Cu Kα radiation (λ = 0.15418 nm) at 40 kV and 40 mA, using a continuous scan mode. A quick scan at 4°/min was primarily performed within a wide range of 2θ =25–105° to give a general exhibition of diffraction peaks. A slower scan rate of 1°/min was further used over

    Get Price
  • Technological properties of high alumina refractories with ...

    2018-11-23 · batch was done by using XRD and scanning electron microscope as well as EDAX. The amount of water that rendered the raw clay material plastic (i.e., plasticity) was determined using the Atterberg method (BS 13771975). Bulk densities of the calcined bauxite and the clay raw material were determined. Densification parameters of the fired

    Get Price
  • Phase Quantification Using XRD | Malvern Panalytical

    Typical applications include the quantification of minerals for grade control of rocks and ores, clinker and cement phases in building material industries, and bath ratio or ‘potflux’ analysis in aluminum smelters. Providing detection limits in the range of 0.1 to 1 wt.% per phase, XRD is suitable for quality control.

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  • Fabrication of Refractory Materials from Coal Fly Ash ...

    2020-8-6 · expensive to manage and di cult to dispose of, and therefore using it in various applications, such as engineering projects, is the most favorable method for the management of this type of waste [33]. The focus was, therefore, to fabricate refractory materials from fly ash, and make contrasting analyses with those fabricated from kaolin.

    Get Price
  • XRD Phase Identification | Malvern Panalytical

    Powering the next generation of XRD research. Multipurpose X-ray diffractometers for your analytical needs. More details More details ; Technology: X-ray Diffraction (XRD) Measurement type: Phase identification: X-ray tube anode material: Cu /Co (option) Cu, Co,Cr, Mn, Fe, Mo, Ag: More details Request a quote : More details Request a quote

    Get Price
  • Synthesis of Nanocrystalline MgO Particles by

    2014-6-3 · 3. Results and Discussion 3.1. XRD Pattern of Nano-MgO Powder. In the present work, Mg(NO 3) 2 ·6H 2 O is used as oxidizer and C 6 H 12 N 4 is used as reducing agent. Similar to the oxidation number concept, the valency of the oxidizing elements is considered as negative and the reducing elements as positive in solution combustion calculations [].Accordingly, the elemental …

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  • Method for making ceramic matrix composites using ...

    The present invention provides a method for making a ceramic matrix composite comprising forming an infiltrated fiber reinforcement by infiltrating a plurality of plies of a fibrous material with a precursor polymer which decomposes to a substantially pure product selected from the group consisting of a refractory metal carbide and a refractory metal boride, and exposing the infiltrated fiber ...

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  • SciELO - Cerâmica, Volume: 67, Número: 382,

    2021-5-25 · Abstract The spinel ferrite system Ni1-xZnxFe2O4 (x=0-0.7, Δx=0.1) was prepared by wet chemical co-precipitation method using sulfates of respective metal ions. The electrical resistivity and dielectric properties of the prepared samples have been studied as a function of temperature, frequency, and Zn content (x).

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