β-Sialon对金属复合不烧铝碳材料高温力学性能的影响  

Effects of bauxite based β-Sialon additive on thermal mechanical properties of Al/Si containing unfired Al_2O_3-C slide plate material

作　　者：岳卫东[1] 石凯 钟香崇[1] 

机构地区：[1]郑州大学高温功能材料河南省重点实验室,河南郑州450052 [2]河南省伯马股份有限公司,河南新乡453000

出　　处：《钢铁研究》2007年第3期4-7,共4页Research on Iron and Steel

摘　　要：研究了加入矾土基β-Sialon对金属Al/Si复合不烧滑板材料高温力学性能的影响。加入矾土基β-Sialon后,材料具有如下特性:(1)高温抗折强度-温度曲线保持原有特性,在1 400℃时强度仍达到40MPa以上;(2)残余强度保持率随着矾土基β-Sialon加入量的增加而略有提高,抗热震性稍有改善。还讨论了材料的高温力学性能与物相组成和显微结构的关系。This paper studies the effects of bauxite based β-Sialon additive on the thermal mechanical properties of Al/Si containing unfired Al2O3-C slide plate material. The slide plate material with bauxite based β-Sialon additive showed the following features. （1） MOR-T curves remained its original characteristics and HMOR at 1 400℃ was more than 40 MPa; （2） With raising the content of bauxite based β-Sialon additive, both residual strength ratio and thermal shock resistance were improved slightly. In addition, the effects of phase compositions and microstructure of the slide plate material on its mechanical properties are also discussed.

关 键 词：矾土基β—Sialon 金属复合 抗折强度 抗热震性 显微结构 

分 类 号：TB333[一般工业技术—材料科学与工程]