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ceramics free full text improvement in slag resistanceeffect of spinel content on slag attack resistance of high

Current Location : Home > ceramics free full text improvement in slag resistanceeffect of spinel content on slag attack resistance of high

  • Effect of spinel content on slag attack resistance of high

    High alumina refractory castables based on the Al 2 O 3-MgO-CaO diagram ternary system were prepared using tabular alumina white electrofused corundum calcined alumina synthetic spinel dead-burned magnesia dolomite and calcium aluminate cement as starting raw materials.Two kinds of slags with 9.02 and 4.14 CaO/SiO 2 ratios were studied for slag resistance by means of crucible tests.

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  • Evolution of in Situ Refractories in the 20th Century

    The full text of this article hosted at iucr is unavailable due to technical difficulties. The history of refractories during the 20th century is used in this review to illustrate how techniques‐such as slag splashing in situ spinel generation Effect of Magnesia Addition on Physical Properties and Slag Attack Resistance of

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  • A Review on Recent Advances on Magnesia-Doloma

    Addition of CuO up to 2 wt. improved the hydration resistance but it was not significantly high in comparison to that of 1 wt. CuO. The use of a higher level of CuO in lime did not show any further improvement in hydration resistance. The CaO forms a low melting compound (2CaO.CuO) with CuO which helps liquid phase sintering of lime.

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  • Corrosion of refractories in lead smelting reactorsUBC

    Corrosion of refractories by slag is a complex phenomenon which depending on the particular system involves many processes such as chemical wear (corrosion) and physical or mechanical wear (erosion) which may act synergistically. No single model can explain all cases of corrosion nor can it explain all corrosion mechanisms of a particular refractory in different environments but the

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  • Materials Free Full-Text Improving Corrosion

    The corrosion of refractories in contact with high temperature aluminum-magnesium alloys leads to contamination of the Al-Mg alloy products by solid impurities from degraded refractories. Where both the spinel and corundum phases form in the refractories cracks are generated and propagated by diffusion of molten Al-Mg resulting in severe corrosion.

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  • Full text of "Engineering Science Vol-14"Internet Archive

    Search Metadata Search text contents Search TV news captions Search archived websites Advanced Search. Sign up for free Log in Full text of "Engineering Science Vol-14" See other formats

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  • ISIJ InternationalJST

    In the case of high P 2 O 5 content a leachate with higher P concentration and lower Ca and Si concentrations was obtained exhibiting excellent selective leaching of P. Increasing the Fe 2 O 3 content in slag not only promoted the dissolution of P but also decreased the dissolution ratios of other elements. With the increase in slag basicity

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  • Evolution of in Situ Refractories in the 20th Century

    The full text of this article hosted at iucr is unavailable due to technical difficulties. The history of refractories during the 20th century is used in this review to illustrate how techniques‐such as slag splashing in situ spinel generation Effect of Magnesia Addition on Physical Properties and Slag Attack Resistance of

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  • (PDF) Improvement in Slag Resistance of No-Cement

    Download full-text PDF Download full-text PDF This explains why LCC-SP had the lowest resistance to slag attack. Ceramics The main variables considered are the spinel content and grain

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  • Effect of Spinel Kinds on Properties of Alumina—Spinel

    Nov 01 2014 · Alumina–spinel castables have also been developed with in situ spinel‐forming material where fine MgO powder taken in batch reacts with Al 2 O 3 fines to form spinel on firing and fine spinel formed " in situ " by the reaction of MgO–Al 2 O 3 in the matrix of alumina–magnesia castable increases resistance to corrosion and slag

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  • Recycling Practices of Spent MgO-C Refractories

    The recycling options of spent MgO-C refractories from an electrical arc furnace (EAF) have been evaluated. The economic quality of spent refractories and products made from it the ease of implementation of a recycling practice and the interest of steel melt shops were considered. It was decided that the best option of most EAF shops would be to recycle spent MgO-C refractory as a

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  • Full text of "Transactions"

    Search metadata Search text contents Search TV news captions Search archived web sites Advanced Search. upload UPLOAD person. Librivox Free Audiobook. Dj Silver Knight Martial Philosophy KevLoe s WAV. Full text of "Transactions"

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  • Promoting spinel formation and growth for preparation of

    Jan 27 2020 · The study provides a method for improving the quality of the refractory material prepared from ferronickel slag by promoting the spinel formation and growth in the slag which was sintered with sintered magnesia and chromium oxide in a broad sintering temperature range from 1200°C to 1500°C.

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  • Effect of spinel content on slag attack resistance of high

    Journal of the European Ceramic Society 27 (2007) 4623–4631 Effect of spinel content on slag attack resistance of high alumina refractory castables L.A. D´ıaz a R. Torrecillas a ∗

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  • Ceramics International Vol 38 Issue 2 Pages

    Effects of Sb content on electrical properties of lead-free piezoelectric (K 0.4425 Na 0.52 Li 0.0375) (Nb 0.9625−x Sb x Ta 0.0375)O 3 ceramics Xuming Pang Jinhao Qiu

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  • Ceramics Free Full-Text Correlation of Thermo-Elastic

    Corrosion is one of the most common wear mechanisms of refractories. Corrosive attacks lead to chemical and microstructural changes. Hot corrosion compromises chemical and/or physical interactions. Thus the process is complex and not yet fully understood. Currently corrosion is investigated post mortem by means of X-ray diffraction or scanning electron microscopy.

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  • Effect of spinel content on slag attack resistance of high

    Journal of the European Ceramic Society 27 (2007) 4623–4631 Effect of spinel content on slag attack resistance of high alumina refractory castables L.A. D´ıaz a R. Torrecillas a ∗

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  • ISIJ InternationalJST

    The results indicated that the slag crust presented apparent layer structure as the solid slag layer and viscous layer which primarily consisted of gehlenite (Ca 2 Al 2 SiO 7) calcium aluminate (CaAl 4 O 7) magnesia-alumina spinel (MgAl 2 O 4) pleonaste (Mg 0.7 Fe 0.23 Al 1.97 O 4) kaliophilite (KAlSiO 4) and metallic iron.

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  • Reactive processing of ceramic binding systems for

    The general applied objective of this project is to develop hydratable alumina-bonded castables of properties comparable to the high-temperature fired basic bricks. This work is focused on improving the sintering of the ceramic binding systems at relatively low temperatures ( 1300°C) through incorporation of ultrafine powders. Ultrafine magnesium aluminate spinel powders were synthesized

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  • Microstructural analysis of corroded alumina-spinel

    Jan 01 1997 · Microstructures are determined before and after slag corrosion testing in an attempt to elucidate the mechanism of corrosive attack by a typical ladle slag composition. 2 Experimental The castable formulation (Table 1) was chosen to optimize resistance to slag penetration.7 Four diff- erent grades of sintered spinel were used contain- ing 67

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  • Ceramics Free Full-Text Improvement in Slag Resistance

    The corrosion resistance of spinel containing cement bonded castables has been extensively investigated in the past. However corrosion of no-cement refractory castables (NCC) has not been widely studied since the use of NCC has been relatively limited up till now. This paper focuses on the slag resistance of NCCs and the often-used spinel

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  • Magnesia-Based Cements A Journey of 150 Years and

    This review examines the detailed chemical insights that have been generated through 150 years of work worldwide on magnesium-based inorganic cements with a focus on both scientific and patent literature. Magnesium carbonate phosphate silicate-hydrate and oxysalt (both chloride and sulfate) cements are all assessed. Many such cements are ideally suited to specialist applications in precast

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  • 12th INTERNATIONAL CERAMICS CONGRESS PART H.

    Another 25 papers consider such topics as geopolymer binders in composite cements and ceramic-like materials the role of alkaline cations in geomaterial foams new geopolymers based on electric arc furnace slag bond strengths in geopolymer and cement concretes and recycling industrial wastewater by immobilizing it in geopolymer cement.

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  • Full text of "SP 37-3 Handbook for Refractories Part 3

    Full text of "SP 37-3 Handbook for Refractories Part 3 Refractories for Cement Kiln System" See other formats -k t Disclosure to Promote the Right To Information Whereas the Parliament of India has set out to provide a practical regime of right to information for citizens to secure access to information under the control of public authorities in order to promote transparency and

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  • ISIJ InternationalJST

    In the case of high P 2 O 5 content a leachate with higher P concentration and lower Ca and Si concentrations was obtained exhibiting excellent selective leaching of P. Increasing the Fe 2 O 3 content in slag not only promoted the dissolution of P but also decreased the dissolution ratios of other elements. With the increase in slag basicity

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  • 1-s2.0-SX-main Refractory Ceramics

    1-s2.0-SX-mainFree download as PDF File (.pdf) Text File (.txt) or read online for free. refractories

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  • A Review on Recent Advances on Magnesia-Doloma

    Addition of CuO up to 2 wt. improved the hydration resistance but it was not significantly high in comparison to that of 1 wt. CuO. The use of a higher level of CuO in lime did not show any further improvement in hydration resistance. The CaO forms a low melting compound (2CaO.CuO) with CuO which helps liquid phase sintering of lime.

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