纯铝与石墨、SiC和Al2O3的润湿性（英文）

被引：7

作者：

包萨日娜 ^{[1
]}

唐恺 ^{[2
]}

Anne KVITHYLD ^{[2
]}

Thorvald ENGH ^{[1
]}

Merete TANGSTAD ^{[1
]}

机构：

[1] Department of Materials Science and Engineering,Norwegian University of Science and Technology,NO-,Trondheim,Norway

[2] SINTEF Materials and

来源：

Transactions of Nonferrous Metals Society of China | 2012年 / 22卷 / 08期

关键词：

润湿性; 润湿角; 铝; 氧化铝; SiC; 石墨;

D O I：

暂无

中图分类号：

TG146.21 [];

学科分类号：

摘要：

纯铝与过滤材料和夹杂物之间的润湿性是影响铝的过滤性能的重要因素。在10-8bar真空条件下于1000～1300°C,研究液态铝与氧化铝、SiC和石墨之间的润湿角。为了描述铝的过滤和浇铸等在低温条件下铝与陶瓷的润湿行为,使用半经验模型进行研究。计算出的700°C的纯铝与氧化铝的润湿角为97°,与玻璃体石墨的为92°,与单晶和多晶石墨的为126°,与单晶的为SiC79°。结果表明:在浇铸温度下铝不能润湿氧化铝和石墨(或者Al4C3),但可以润湿SiC。因此,为了让铝能够浸润过滤材料,在铝过滤时需要施加一个压力差作为推动力。提高温度也可以改善铝与陶瓷间的润湿性。

引用

页码：1930 / 1938

页数：9

共 16 条

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