三维网络结构SiC/Fe基复合材料制备以及组织性能的研究  

Preparation and Microstructure Properties of Three-Dimensional Network Structure SiC/Fe Matrix Composites

作　　者：陈亮[1] 常庆明[1,2] 章杰 朱威 CHEN Liang;CHANG Qingming;ZHANG Jie;ZHU Wei(School of Materials and Metallurgy,Wuhan University of Science and Technology,Wuhan 430081,China;The State Key Laboratory of Refractories and Metallurgy,Wuhan University of Science and Technology,Wuhan 430081,China)

机构地区：[1]武汉科技大学材料与冶金学院,湖北武汉430081 [2]武汉科技大学省部共建耐火材料与冶金国家重点实验室,湖北武汉430081

出　　处：《热加工工艺》2022年第6期79-83,92,共6页Hot Working Technology

基　　金：国家自然科学基金资助项目(51074116)。

摘　　要：采用有机泡沫浸渍法(PSD)制备出抗压强度为0.3 MPa的三维网络结构碳化硅陶瓷预制体,并用氧化铝浆料对预制体进行二次挂浆(真空浸渗)处理,预制体的抗压强度提高到0.78 MPa;对二次挂浆前后的预制体进行常压浇注制备三维网络结构SiC/Fe基复合材料,并对复合材料结合界面和耐磨性分析。结果表明,复合材料的界面清晰、结合紧密并且无中间产物产生;复合材料的耐磨性能是基体材料的2.1~3.2倍,并且三维网络结构碳化硅陶瓷的抗压强度越高,复合材料的耐磨性越好。The 3D network silicon carbide ceramic preforms with compressive strength of 0.3 MPa were prepared by the organic foam impregnation method(PSD). The preform was treated with alumina slurry for secondary slurry(vacuum infiltration), and the compressive strength of the preform was increased to 0.78 MPa. The 3D network SiC/Fe matrix composites were prepared by normal pressure pouring of preforms before and after secondary slurry. The bonding interface and wear resistance of the composites were analyzed. The results show that, the interface of the composites is clear, tightly bonded and without intermediate products. The wear resistance of the composites is 2.1-3.2 times of that of the matrix materials, and the higher the compressive strength of the composites is, the better the wear resistance of the composites is.

关 键 词：三维网络结构SiC SiC/Fe复合材料 抗压强度 耐磨性能 

分 类 号：TB333.13[一般工业技术—材料科学与工程]