微波烧结TiC颗粒增强铝基复合材料  

Preparation of TiC Particles Reinforced Aluminum Matrix Composites (AMCs) by Microwave Sintering

作　　者：王文彬[1,2] 王文焱[1,2] 谢敬佩[1,2] 王爱华[3] 郑蕊蕊[3] 

机构地区：[1]河南科技大学材料科学与工程学院 [2]河南省有色金属材料科学与加工技术重点实验室 [3]华中科技大学材料科学与工程学院

出　　处：《特种铸造及有色合金》2013年第12期1172-1175,共4页Special Casting & Nonferrous Alloys

基　　金：国家重点基础研究发展计划(973计划)资助项目(2012CB619600)

摘　　要：采用微波烧结的方法,制备了Al及TiC/Al和TiC/Al-12Si基复合材料。比较了它们的显微形貌、物相组成、硬度和致密度。结果表明,微波烧结粉末粒度较小的试样所得到的组织和性能较好;TiC增强相的加入抑制了基体晶粒的长大;微波烧结制备的TiC/Al-12Si复合材料,TiC分布相对均匀,Si相以棒条状和片状存在,有新相Al9Si稳定化合物生成;复合材料的基体不同,增强相TiC的形态和分布有很大差异。Al and TiC particles reinforced aluminum matrix composites （TiC/Al, TiC/Al-12Si） were prepared by microwave sintering method. The microscopic morphology, phase constituent, hardness and relative density of the samples prepared were analyzed comparatively. The results show that the micro- structure and properties of the samples prepared exhibit satisfy with small particle size by microwave sintering. With adding TiC particles, the growth of the matrix grains is inhibited. In TiC/Al-12Si compos ites prepared by the microwave sintering, TiC is relatively uniformly distributed with existence of the silicon phase in the shape of bar strip and sheet, and a new stable phase Al9Si can be observed. The morphology and distribution of the reinforced phase TiC are relavant with the different matrix materials.

关 键 词：微波烧结 AL基复合材料 TIC颗粒 显微组织 致密度 

分 类 号：TB333[一般工业技术—材料科学与工程]