| 掺CeO_2的MgO－CaO系中CaO和MgO的晶粒生长动力学 |
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| 引用本文： | 赵惠忠,张文杰,汪厚植.掺CeO_2的MgO－CaO系中CaO和MgO的晶粒生长动力学[J].武汉科技大学学报(自然科学版),1996(4). |
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| 作者姓名： | 赵惠忠 张文杰 汪厚植 |
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| 作者单位： | 材料科学与工程学院 |
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| 摘 要： | 研究了ＭｇＯ－ＣａＯ系耐火材料中主要氧化物ＣａＯ和ＭｇＯ在高温下的晶粒生长动力学，发现ＣｅＯ２的存在降低了ＣａＯ和ＭｇＯ的晶粒生长活化能，提高了结构基元的扩散速率，促进了ＣａＯ和ＭｇＯ晶粒的生长，从而揭示了掺ＣｅＯ２的ＭｇＯ－ＣａＯ系耐火材料抗水化性提高的本质
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| 关 键 词： | MgO－CaO材料 动力学 氧化铈 |
GRAIN GROWTH KINETICS OF CaO AND MgO IN MgO CaO SYSTEM DOPED WITH CeO 2 |
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| Zhao Huizhong,Zhang Wenje,Wang Houzhi.GRAIN GROWTH KINETICS OF CaO AND MgO IN MgO CaO SYSTEM DOPED WITH CeO 2[J].Journal of Wuhan University of Science and Technology(Natural Science Edition),1996(4). |
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| Authors: | Zhao Huizhong Zhang Wenje Wang Houzhi |
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| Institution: | Zhao Huizhong Zhang Wenje Wang Houzhi |
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| Abstract: | The grain growth kinetics of CaO and MgO which are major oxide in the MgO CaO refractories systems is investigated.It was found that the presence of CeO 2 accelerates the grain growth of CaO and MgO by decreasing the activation energy of CaO and MgO and increasing the diffusion rate of structure unit,thus the essence of hydration resistance improving in MgO CaO refracories doped with CeO 2 is revealed. |
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| Keywords: | MgO CaO material kinetics ceria |
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