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production of xrd of refractory materials

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

    2020-8-6 · inexpensive raw materials [4,8,11]. Fly ash and kaolin are among the raw materials widely used in the production of refractory materials. Research has proven the nature of additives such as MgO in the fabrication of refractory materials and promoted their utilization in various applications [26]. The use of MgO and AlF33H2O, with fly

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  • Int. Journal of Refractory Metals & Hard Materials

    2021-1-22 · XRD pattern for the production of WC from interrupted high energy ball milling of W and C, corresponding to (a) initial mixture, (b) 4 h, (c) 8 h and (d) 12 h of milling, at BPR of 10:1 and milling speed of 300 rpm, respectively. Fig. 1. W–C phase diagram [5]. 2 S. Bolokang et al./Int. Journal of Refractory Metals & Hard Materials xxx (2009 ...

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  • Utilization of coal fly ash as a raw material for ...

    2021-3-20 · 1. Introduction. The pot lining in the Hall-Héroult cell is mainly composed of carbonaceous materials (carbon cathodes and side carbon blocks) and refractory materials (dry barrier materials and insulation bricks) (Xie et al., 2020).The lining structure becomes deformed or even broken by the penetration and corrosion of both high-temperature molten salt and metallic sodium, resulting in ...

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  • X-Ray diffraction (XRD) :: Anton Paar Wiki

    X-Ray diffraction is used for the investigation of crystalline materials. All crystalline materials have one thing in common: their components are arranged in a regular manner. Read on to get an introduction to X-ray diffraction and non-ambient X-ray diffraction, instrumental design aspects, and more.

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  • Composition and Refractory Properties of Mixtures of ...

    2013-12-24 · elaboration of mullite refractory materials between 1500˚C and 1600C. An X-ray diffraction ˚ (XRD) analysis showed that the refractory samples are composed of mullite, corundum and silica. The length of the mullite crystals was meas- ured by a method of image analysis of scanning electron microscopy (SEM). Chemical and mechanical properties of

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  • Ceramics - Industrial Minerals - XRD - Advancing

    2019-10-29 · XRD analysis for ceramic manufacturing. Recently, XRD specialists here analyzed samples of ball clay, kaolin, magnetite and feldspar with the ARL EQUINOX 100 X-ray Diffractometer to determine the phase composition in mineral samples used for the production of ceramic materials. A benchtop diffractometer, the ARL EQUINOX has been shown to be a ...

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  • Fabrication of sustainable insulation refractory ...

    2019-5-1 · For refractory materials, phonons and photons are the key media for thermal conductivity, and their contribution depends on the temperature mainly. At low temperatures (<300 °C) energy flow in materials mainly occurs via lattice vibrations (phonons) at speed of sound and significantly decreased to a lower value at higher temperatures, where ...

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  • Processes | Free Full-Text | Recovery of Raw Materials ...

    Products of the refractory industry are key for the production of heavy industry goods such as steel and iron, cement, aluminum and glass. Corresponding industries are dependent on thermal processes to manufacture their products, which in turn would not be possible if there were no refractory materials, such as refractory bricks or refractory mixes. For the production of refractory materials ...

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  • Facile Route for Preparing Refractory Materials from ...

    2019-5-26 · The feasibility of a facile technological route to preparation of refractory materials from a ferronickel slag with the addition of sintered magnesia was verified in this study based on the thermodynamics analysis and the experimental exploration of the effect of the sintered magnesia addition on the phase transformation of ferronickel slag during the sintering process. For the first time, the ...

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  • Properties of Ugandan minerals and fireclay refractories

    2006-3-19 · Firing of refractory materials results into a densified thermally stable structure, and bond development through partial vitrification, sintering and/or crystallization. This final process of firing gives raw materials their refractory properties and hence the properties of the final product. 1.3 Materials and manufacture of fireclay refractories

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  • Development of AZS Refractories ... - Materials

    2006-4-13 · * commercial composition ** low amount of ZrO 2 *** AZS with SiC and MgO respectively All raw materials were dried at a temperature of about 110°C during 18 h, three grams of each one of the compositions presented in the Table 1, were mixed, homogenized and pressed to form specimens of 2.5 x 0.5 x 0.5 cm with 13350 N of load, sufficient to compact the dust and to obtain the samples.

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  • Valorization of Ferronickel Slag into Refractory

    2018-11-20 · Preparation of refractory materials from ferronickel slag by sintering over a broad temperature range (1200°C to 1500°C) with addition of sintered magnesia was explored. The thermodynamic calculations indicated that the amounts of newly generated high-melting-point forsterite and spinel phases increase with increasing temperature. The experimental analysis demonstrated that …

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  • Production of Steel | Metallurgical and Materials

    CO3: To know details about several aspects involved in production of steel like refractories, carbon footprint and India’s role in steelmaking CO4: To identify and choose a production methodology for a particular type of steel from given raw materials and set of conditions by applying theoretical knowledge and technological principles

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  • X-ray diffraction (XRD) | Rigaku Global Website

    2 天前 · From research to production and engineering, XRD is an indispensable method for materials characterization and quality control. Rigaku has developed a range of X-ray diffractometers, in co-operation with academic and industrial users, which provide the most technically advanced, versatile and cost-effective diffraction solutions available today.

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  • Int. Journal of Refractory Metals & Hard Materials

    2021-1-22 · XRD pattern for the production of WC from interrupted high energy ball milling of W and C, corresponding to (a) initial mixture, (b) 4 h, (c) 8 h and (d) 12 h of milling, at BPR of 10:1 and milling speed of 300 rpm, respectively. Fig. 1. W–C phase diagram [5]. 2 S. Bolokang et al./Int. Journal of Refractory Metals & Hard Materials xxx (2009 ...

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  • Int. Journal of Refractory Metals and Hard Materials

    2017-1-5 · Investigations in production scale with intentionally contaminated tungsten oxide showed that bronzes can ... Int. Journal of Refractory Metals and Hard Materials 62 (2017) 87–96 ⁎ Corresponding author at: Wolfram Bergbau und Hütten AG, 8543 St. Martin, Austria. ... XRD and SEM examination of powder bed after 5 min reduction time in dry ...

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  • ELECTROCHEMICAL PRODUCTION OF MOLYBDENUM

    2020-1-1 · ELECTROCHEMICAL PRODUCTION OF MOLYBDENUM REFRACTORY METAL POWDERS . Akpınar, Bengisu . Master of Science, Metallurgical and Materials Engineering . Supervisor: Prof. Dr. İshak Karakaya. Co-Supervisor: Assist. Prof. Dr. Metehan Erdoğan. December 2019, 51 pages. Molybdenum (Mo) is a refractory metal and mostly used as an alloying agent in cast

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  • UNTRADITIONAL SYNTHESIS OF BORON-CONTAINING

    2020-11-5 · ) and production of dense boron carbide (B 4 C) based materials. Using SEM, TEM, XRD and analytical chemical methods, it was shown that diborides of titanium and zirconium have appropriate properties for production of dense ceramic materials. Using the method of mechanically-assisted sintering high-dense B 4 C-based ceramic materials was obtained.

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  • Behaviour of Refractory Materials for Sustainable Use

    2019-4-1 · Abstract: With the development of boiler rooms using biomass, the limitation of premature wear of refractory ceramic products by chemical corrosion became a major issue to limit the premature shutdown of the installations. In this context, the French industrial technical Center for Ceramics (SFC) and its partner ICAR conducted a complete study aimed to understand the mechanisms that control ...

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  • Int. Journal of Refractory Metals and Hard Materials

    2013-4-10 · Conversion of W 2C to WC phase during mechano-chemical synthesis of nano-size WC–Al 2O 3 powder using WO 3–2Al–(1+x)C mixtures M. Sakaki a,⁎, M.Sh. Bafghi b, J. Vahdati Khaki c, Q. Zhang d, F. Saito d a Department of Materials Engineering, Malayer University, Malayer, Iran b School of Metallurgy and Materials Engineering, Iran University of Science and Technology (IUST), Narmak, …

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  • 21. Preparation of refractory

    2021-4-15 · materials, in which it was found that H-cordierite crystallization occurred at 900 oc, followed by the formation Il-cordierite at temperature of 1200 oc and complete transformation of into u- cordierite at 1350 oc. In general, the characteristics of refractory cordierite for ther- mal insulator are influenced by complex relationship between

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  • Surfaces of refractory products modified by low ...

    silicon dioxide and alumina oxide. Moreover, refractory materials exhibit 4-9% strengthening. 1. Introduction . Refractory materials and the equipment used for glass manufacturing allow considerably to increase service life of basic production facilities and reduce both energy and manufacturing costs. At …

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  • Development of AZS Refractories ... - Materials

    2006-4-13 · * commercial composition ** low amount of ZrO 2 *** AZS with SiC and MgO respectively All raw materials were dried at a temperature of about 110°C during 18 h, three grams of each one of the compositions presented in the Table 1, were mixed, homogenized and pressed to form specimens of 2.5 x 0.5 x 0.5 cm with 13350 N of load, sufficient to compact the dust and to obtain the samples.

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  • PRODUCTION AND CHARACTERIZATION OF CARBON

    2018-11-5 · refractory materials for many of its industries [6, 7]. Recently, the government of this country (Nigeria) has adopted a policy with the ultimate aim of encouraging production of automobile locally; this may be elusive without resuscitating our iron and steel industry.

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  • ELECTROCHEMICAL PRODUCTION OF MOLYBDENUM

    2021-5-31 · From research to production and engineering, XRD is an indispensable method for materials characterization and quality control. Rigaku has developed a range of X-ray diffractometers, in co-operation with academic and industrial users, which provide the most technically advanced, versatile and cost-effective diffraction solutions available today.

    Get Price
  • X-Ray diffraction (XRD) :: Anton Paar Wiki

    2020-1-1 · ELECTROCHEMICAL PRODUCTION OF MOLYBDENUM REFRACTORY METAL POWDERS . Akpınar, Bengisu . Master of Science, Metallurgical and Materials Engineering . Supervisor: Prof. Dr. İshak Karakaya. Co-Supervisor: Assist. Prof. Dr. Metehan Erdoğan. December 2019, 51 pages. Molybdenum (Mo) is a refractory metal and mostly used as an alloying agent in cast

    Get Price
  • Production of High Refractory Y2O3 Submicron Particles ...

    NA-XRD is also an important technique for material research which uses minerals as raw materials for e.g. sensor devices, ferroelectrics piezoelectrics or permanent magnets. Furthermore cements and especially their hydration/dehydration reactions are frequently studied with non-ambient diffraction.

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  • UNTRADITIONAL SYNTHESIS OF BORON-CONTAINING

    2016-11-29 · UCTEA Chamber of Metallurgical & Materials Engineers Proceedings Book 276 IMMC 2016 | 18th International Metallurgy & Materials Congress Production of High Refractory Y2O3 Submicron Particles by the Ultrasonic Spray Pyrolysis (USP) and Sol-Gel Methods Doğan Arslan, Onur Tüysüz, Tolga Eker, Esra Yudar, Elif Emil,

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  • Surfaces of refractory products modified by low ...

    2020-11-5 · ) and production of dense boron carbide (B 4 C) based materials. Using SEM, TEM, XRD and analytical chemical methods, it was shown that diborides of titanium and zirconium have appropriate properties for production of dense ceramic materials. Using the method of mechanically-assisted sintering high-dense B 4 C-based ceramic materials was obtained.

    Get Price
  • (PDF) Characterizations of Semi-Silica Refractory

    silicon dioxide and alumina oxide. Moreover, refractory materials exhibit 4-9% strengthening. 1. Introduction . Refractory materials and the equipment used for glass manufacturing allow considerably to increase service life of basic production facilities and reduce both energy and manufacturing costs. At …

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  • Recycling of Secondary Aluminium Production Waste in ...

    2271 Eng. & Tech. Journal ,Vol.32, Part (A), No.9, 2014 Characterizations of Semi-Silica Refractory Bricks Produced from Local Iraqi Materials 2.3.2 Mineralogical Analysis XRD results of raw materials kaolin and white sand are shown in fig. (2) and (3) that kaolinite contains kaolin and quartz.

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  • Effects of Alumina Cement on the Refractory Properties of ...

    2015-6-21 · Recycling of Secondary Aluminium Production Waste in Processing of Mullite Based Refractory Ceramics D. Kirsever *, N. K. Karabulut, N. Toplan, H. O. Toplan Sakarya Universit,y Metallurgy and Materials Engineering, 54187 Sakarya, urkTey This work describes the studies to reuse secondary aluminium production waste (SAPW) derived from alu-

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  • Int. Journal of Refractory Metals & Hard Materials

    2021-1-22 · XRD pattern for the production of WC from interrupted high energy ball milling of W and C, corresponding to (a) initial mixture, (b) 4 h, (c) 8 h and (d) 12 h of milling, at BPR of 10:1 and milling speed of 300 rpm, respectively. Fig. 1. W–C phase diagram [5]. 2 S. Bolokang et al./Int. Journal of Refractory Metals & Hard Materials xxx (2009 ...

    Get Price
  • Production of High Refractory Y2O3 Submicron Particles ...

    2016-11-29 · UCTEA Chamber of Metallurgical & Materials Engineers Proceedings Book 276 IMMC 2016 | 18th International Metallurgy & Materials Congress Production of High Refractory Y2O3 Submicron Particles by the Ultrasonic Spray Pyrolysis (USP) and Sol-Gel Methods Doğan Arslan, Onur Tüysüz, Tolga Eker, Esra Yudar, Elif Emil,

    Get Price
  • UNTRADITIONAL SYNTHESIS OF BORON-CONTAINING

    2020-11-5 · ) and production of dense boron carbide (B 4 C) based materials. Using SEM, TEM, XRD and analytical chemical methods, it was shown that diborides of titanium and zirconium have appropriate properties for production of dense ceramic materials. Using the method of mechanically-assisted sintering high-dense B 4 C-based ceramic materials was obtained.

    Get Price
  • Development of Refractory Materials for Ladle Lining

    2020-9-30 · At the initial stage of production, the Refractory Materials for Ladle Lining of 120t ladle is made of alumina-magnesia machine-made bricks, the thickness of the bottom brick is 300 mm, and the thickness of the wall brick is 160 mm. In the early stage, the life of the ladle can be up to 90 furnaces when it is cast directly on the ladle.

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  • STUDIES ON PHASE FORMATION IN HIGH ALUMINA

    2013-12-10 · Aluminous Materials 11 2.2. Production of High Alumina Cement 12 2.3. Calcium Aluminate Phases present in CACs 13 ... Mineralogical or XRD (Quantitative) Analysis 38 4.3. Characterization of castable group D 48 4.3.1. Chemical Analysis 48 ... In the first generation of unshaped refractory the HACs were the one and

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  • Refractory Ceramics of Clay and Alumina Waste

    2021-3-17 · The effective use of waste materials not only helps to solve a complex environmental problem such as pollution and the conservation of natural resources, but also produces materials with high added value. 2. Experimental Procedures Two clays (X and Y) and alumina waste (AW) were used as precursor raw materials for the production of test specimens.

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  • Facile Route for Preparing Refractory Materials from ...

    2018-2-2 · The feasibility of a facile technological route to preparation of refractory materials from a ferronickel slag with the addition of sintered magnesia was verified in this study based on the thermodynamics analysis and the experimental exploration of the effect of the sintered magnesia addition on the phase transformation of ferronickel slag during the sintering process.

    Get Price
  • PREMIUM ALUMINA FOR REFRACTORY APPLICATIONS

    2020-5-29 · refractory formulations. Aggregates are the backbone of a refractory formulation and provide dimensional stability to the refractory products. The coarser fractions add thermal shock and corrosion resistance. All Almatis alumina-based aggregates are manufactured from high purity raw materials. The well-controlled production processes result

    Get Price
  • Omowumi O.J, “Characterization of some Nigerian

    Influence of Grog Size on the Performance of NSU Clay-Based Dense Refractory Bricks. American Journal of Materials Science and Engineering. 2016; 4(1):7-12. doi: 10.12691/ajmse-4-1-2. Correspondence to: Adindu C. Iyasara, Department of Ceramic and Glass Technology, Akanu Ibiam Federal Polytechnic, Unwana, Nigeria.

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  • A continuous high-temperature purification reactor

    2019-7-23 · The more common refractory insulation materials mainly include high-purity silicic acid, high-alumina fiber felt, high-temperature furnace design will also have an impact on the insulation effect, in most cases, many technicians in order to make the structure design simpler, will use a single insulation layer, although this has certain ...

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  • Development of Refractory Materials for Ladle Lining

    2020-9-30 · At the initial stage of production, the Refractory Materials for Ladle Lining of 120t ladle is made of alumina-magnesia machine-made bricks, the thickness of the bottom brick is 300 mm, and the thickness of the wall brick is 160 mm. In the early stage, the life of the ladle can be up to 90 furnaces when it is cast directly on the ladle.

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

    2017-1-5 · Investigations in production scale with intentionally contaminated tungsten oxide showed that bronzes can ... Int. Journal of Refractory Metals and Hard Materials 62 (2017) 87–96 ⁎ Corresponding author at: Wolfram Bergbau und Hütten AG, 8543 St. Martin, Austria. ... XRD and SEM examination of powder bed after 5 min reduction time in dry ...

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

    2014-4-6 · An investigation of the fabrication of tungsten carbide–alumina composite powder from WO 3, Al and C reactants through microwave-assisted SHS process M. Sakakia,⁎, A. Karimzadeh Behnamib, M.Sh. Bafghib a Department of Materials Engineering, Faculty of Engineering, Malayer University, Malayer 65719-95863, Iran b School of Metallurgy and Materials Engineering, Iran University of …

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  • 21. Preparation of refractory

    2021-4-15 · materials, in which it was found that H-cordierite crystallization occurred at 900 oc, followed by the formation Il-cordierite at temperature of 1200 oc and complete transformation of into u- cordierite at 1350 oc. In general, the characteristics of refractory cordierite for ther- mal insulator are influenced by complex relationship between

    Get Price
  • STUDIES ON PHASE FORMATION IN HIGH ALUMINA

    2013-12-10 · Aluminous Materials 11 2.2. Production of High Alumina Cement 12 2.3. Calcium Aluminate Phases present in CACs 13 ... Mineralogical or XRD (Quantitative) Analysis 38 4.3. Characterization of castable group D 48 4.3.1. Chemical Analysis 48 ... In the first generation of unshaped refractory the HACs were the one and

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

    2013-4-10 · Conversion of W 2C to WC phase during mechano-chemical synthesis of nano-size WC–Al 2O 3 powder using WO 3–2Al–(1+x)C mixtures M. Sakaki a,⁎, M.Sh. Bafghi b, J. Vahdati Khaki c, Q. Zhang d, F. Saito d a Department of Materials Engineering, Malayer University, Malayer, Iran b School of Metallurgy and Materials Engineering, Iran University of Science and Technology (IUST), Narmak, …

    Get Price
  • PRECAST REFRACTORIES

    2014-8-8 · firing and finishing of precast refractory shapes. Being at the forefront in providing quality materials and outstanding technical support is critical. Our capabilities include: 100,000 sq. ft. casting facility constructed specifically for shapes production High intensity paddle mixers capable of handling large cast shapes

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  • PREMIUM ALUMINA FOR REFRACTORY APPLICATIONS

    2020-5-29 · refractory formulations. Aggregates are the backbone of a refractory formulation and provide dimensional stability to the refractory products. The coarser fractions add thermal shock and corrosion resistance. All Almatis alumina-based aggregates are manufactured from high purity raw materials. The well-controlled production processes result

    Get Price
  • Characterization of the Firing Steps and Phases

    2011-8-1 · 1. Introduction. The production of cement clinker is one of the most important industrial processes at world scale. Many technological innovations have been developed in order to increase the production at a lower cost, having in mind that the materials are exposed to …

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  • Characterization of Ladle Furnace Slag from Carbon

    2013-9-1 · A promising type of steel slag for applications is the ladle furnace (LF) slag, which is also known as the basic slag, the reducing slag, the white slag, and the secondary refining slag. The LF slag is a byproduct from further refining molten steel after coming out of a basic oxygen furnace (BOF) or an electric arc furnace (EAF). The use of the LF slag in further applications requires ...

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