摘要
将金属A l、A l3Ti和TiB2以A lTiB中间合金的形式引入A l2O3基体材料中,采用热压原位反应生成法制备了A l2O3/TiB2/A lN/TiN复合陶瓷材料。复合材料在烧结过程处于过渡液相烧结,并有新相A lN和TiN生成;对热压烧结后材料的硬度、断裂韧性和抗弯强度进行了测试和分析;分析了复合材料力学性能随A lTiB体积百分含量的变化规律;探讨了复合材料断面断裂方式的变化对其力学性能的影响;并对A lTiB中间合金的细化特性进行了分析。
In the present work, Al, in the form of AlTiB master alloys. of transitory liquid phase sintering, the chemical reactions fracture toughness taking Al3Ti and TiB2 are incorporated into alumina matrix ceramic materials Composite of Al2O3/TiB2/AlN/TiN are fabricated by the technology during which new phases of AlN and TiN are respectively produced by place among Al, Ti and N2 （the protective atmosphere）. The hardness, the and the bending strength of the composites are tested. Meanwhile, the relations of volume content of AlTiB master alloys and mechanical properties of alumina matrix ceramic materials are analyzed. The effects of fracture mechanism on the mechanical properties of the composites are researched together with the refining performances of AlTiB master alloys.
出处
《人工晶体学报》
EI
CAS
CSCD
北大核心
2006年第4期830-834,共5页
Journal of Synthetic Crystals
基金
教育部科学技术研究重点项目(No.03101)
山东省杰出中青年科学家奖励基金(No.03BS103)
