作者：HIROYUKISUNAYAMA;YOSHIYA MATSUDA;MASAYASU KAWAHARA;
作者單位：Mechanical Engineering and Materials Science, Kumamoto University, Student, now Japan Casting and Forging Corp.
刊名：Journal of the Technical Association of Refractories
ISSN：0285-0028
出版年：2004-01-05
卷：24
期：3
起頁：228
止頁：0
分類號：TQ175
語種：英文
關(guān)鍵詞：
內(nèi)容簡介Clarification of the effect of the microstructure on the oxidation rate of magnesia-carbon refractories, used under reduced pressure for steelmaking in ladles, converters and decarburizing vessels, is important to improve the oxidation resistance of the refractories. Previous researchers reported that the overall oxidation process was controlled by the diffusion of oxygen through the porous decarburized layer, but little work has been done on the relationship between the oxidation rate and the microstructure of magnesia-carbon refractories. The authors have reported on the precise measurement of the oxidation rates for cubic samples using a thermo-balance3'. In this study, the relationship between the maximum grain size of magnesia and the oxidation rate of the magnesia-carbon refractory was evaluated.
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