نتایج جستجو برای: refractory materials

تعداد نتایج: 492200  

Journal: :Journal of the American Ceramic Society 1919

2014

The use of sintered CaO as a refractory material is not uncommon. Refractory material based on lime as the lining of the Bessemer converter was applied for the first time in 1875 in order to carry out desulphuring and dephosphoring of the molten pig iron. Due to interaction of the porous burned CaO with the atmospheric moisture during dead time followed by damage and disintegration of this case...

In this study, the composition of magnesium aluminate spinle and the converter mud were used as raw materials to in-situ formation of hercynite phase in magnesite-hercynite refractory bricks. The pressed samples were sintered at 1400 and 1500℃ and then, the phase composition of bricks was evaluated after firing at 1400℃. Besides, the effect of nano-magnesia particles addition on the properties ...

2015
M. Jones A. Cockburn R. Lupoi W. O’Neill

Near fully dense tungsten coatings onto molybdenum substrates have been demonstrated using the Supersonic Laser Deposition (SLD) process. This is a characteristic that is not readily achievable with refractory materials. The tensile strength of the tungsten deposited coatings, 724MPa, is comparable to that of wrought tungsten with no evidence of melting or substrate grain growth. The results ha...

Journal: :Processes 2021

Products of the refractory industry are key for production heavy goods such as steel and iron, cement, aluminum glass. Corresponding industries dependent on thermal processes to manufacture their products, which in turn would not be possible if there were no materials, bricks or mixes. For primary raw materials semi-finished products corundum, bauxite zircon used. Industrial recycling reduce de...

برزگر, محمد, جباری بر, فرناز, جعفری روحی, امیر حسین, جویبان, ابوالقاسم, رشیدی, محمد رضا, ملکیان, آرمن,

Background & objective: Due to high kinetic variation of antiepileptic medications in children, judgment on the efficacy of intravenous phenytoin and phenobarbital in treatment of refractory status epilepsy, requires measurement of serum levels of the drugs. The aim of this study was determine and compare serum levels of phenytoin and phenobarbital, as the two major and common first- line drugs...

RIGAUD M., ,

At first, trends in the steel industry are briefly reviewed, taking into consideration bothmanagerial and technical issues. As a consequence of this review, the importance of electricfurnace technology and of secondary metallurgy is being underlined. The same sequence iffollowed to describe the refractory industry. Specific issues concerning the latest developments oncarbon-containing castables...

Journal: :Metallurgy and Foundry Engineering 2012

Journal: :NOVYE OGNEUPORY (NEW REFRACTORIES) 2018

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