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Showing 1 to 20 of 28 for “"refractories"”.
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Phosphate bonding in refractories
Thesis (Sc.D.) Massachusetts Institute of Technology. Dept. of Metallurgy, 1950
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Carbon monoxide attack of refractories
<p>"The disintegration and failure of fire clay refractories due to the action of carbon monoxide has been studied tor a period at about fifty years. The most important application is in blast furnace refractories. Similar failures due to carbon deposition, involving other gases such as methane, …
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Heat balances of furnaces using insulating refractories
Thesis (B.S.)--Massachusetts Institute of Technology, Dept. of Metallurgy, 1940.
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Reaction between copper reverberatory slag and refractories
Thesis: M.S., Massachusetts Institute of Technology, Department of Metallurgy, 1944
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Dry pressed lightweight refractories from Virginia kyanite
… less than commercial grades of insulating refractories recommended for service at 2900-3000℉.
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Anti wetting additives for aluminosilicate refractories in molten aluminum contact applications
<p>"Aluminosilicate based refractories are widely used in furnace installations for melting aluminum because they are inexpensive, readily available and generally exhibit the properties desired from a refractory material. However, they face severe corrosion and degradation issues due to the …
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Development of a Novel Thermal Shock test for isostatically Pressed Carbon-Bonded Refractories
… of the novelty of Laser Doppler Vibrometry for refractories damage assessment, the outputs of this method were validated against acoustic-emission signals recorded during stress-strain cycles in separate mechanical tests; damage metrics were examined in both time and frequency domains. During …
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Development of lightweight insulating refractories for steelmaking and other high-temperature process industries
Thesis (M.S.)--Massachusetts Institute of Technology, Sloan School of Management, 1996, and Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Materials Science & Engineering, 1996.
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Effect of various gases on CO disintegration of monolithic refractories for coal gasifiers
Three monolithic refractories (a 90+ wt.% alumina Castable, a 50+ wt.% alumina castable, and a 90+ wt.% alumina phosphate-bonded ramming mix) doped with up to 2.0 wt.% Fe and 2.0 Fe wt.% Fe₂O₃ were tested for CO disintegration in a 100 hr. test similar to. ASTM C-288. The effects of CO₂, NH₃, H₂, …
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MOLTEN STEEL INTERACTIONS WITH TUNDISH LININGS AND REFRACTORY GLAZES
… steel is in contact with two main types of refractories: the working lining of the tundish used to serve as an intermediate vessel between the ladle and copper mold, and the various glazed carbon-bearing refractories used to control the flow of steel from the ladle to the tundish and from …
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Determination of progressive corrosion of clay flux blocks
<p>"The Problem. Corrosion of refractories by molten corrosive liquids like molten slags and glasses is of general occurrence in those parts of the furnaces where they come in contact with the liquids. The life of a furnace generally depends upon the progressive rate of corrosion of the …
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An investigation of the characteristics of high alumina refractory castables
… or concretes, a comparatively new member of the refractories family, are an admixture of highly aluminous cements and graded refractory aggregates, blended in predetermined proportions very much like structural concrete. The refractory aggregates must contain a large amount of fines contrary to …
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Development of internal pressure monitoring system for control of explosive spalling in refractory castables
… initial heating of hydraulically bonded castable refractories, dehydration of cement phases causes build-up of high levels of internal steam pressure. If this pressure exceeds material strength, explosive spalling results. A probe capable of measuring internal steam pressures"in-situ" has been …
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Einfluss von Aluminiumoxid- und Titanoxid-Additiven auf die Thermoschockbeständigkeit von MgO-teilstabilisiertem Zirkonoxid
… production, ever greater demands are made on refractories with respect to thermal shock and corrosion. A group of ZrO2-spinel composite materials was therefore developed at the Institute of Ceramic Components in Mechanical Engineering at RWTH Aachen University, which combines the good …
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A study on thermal conductivity of six unexplored Nigerian clays for possible refractory and insulating materials
Refractories are mineral and chemical based materials, with high heat resistance properties. Refractory manufacturing typically uses clay as the main raw material. The study aims to investigate six unexplored Nigerian clay based on the suitability of their chemical, physical, mechanical and thermal …
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Finite element simulation of creep behavior in enhanced refractory material for glass furnace
… of refractory materials, particularly in silica refractories. Thus, the refractories used in the oxy-fuel-fired furnace are subjected to high temperatures and stresses during its service life. Considerable creep could occur in the furnace, if the refractory material is not creep resistant.;In …
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Catalytic reaction in the process of carbon monoxide disintegration
… to more fully understand the disintegration of refractories when exposed to CO for long periods of time. Based on computer generated equilibrium phase maps (SOLGASMIX program), experimental kinetic data including activation energies and x-ray diffraction data of iron phases, the following …
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