硅酸盐学报2006，Vol.34Issue(7)：782-787,6.
热压法制备Al2O3/TiB2/AlN/TiN复合陶瓷
FABRICATION OF Al2O3/TiB2/AlN/TiN COMPOSITE CERAMIC BY A HOT-PRESSED SINTERING PROCESS
摘要
Abstract
Aluminium (Al), Al3Ti and TiB2 were incorporated into alumina matrix ceramic materials in the form of aluminium titanium boracium (AlTiB) master alloys. Composites of Al2O3/TiB2/AlN/TiN were fabricated by a technique of transitory liquid phase sintering, in which new phases of AlN and TiN were respectively formed by the chemical reactions that take place among Al, Ti and N2 (the protective atmosphere). The hardness, the fracture toughness and the bending strength of the composites were tested. Meanwhile, the relationship between AlTiB content and mechanical properties of alumina matrix ceramic materials was analyzed. The influences of temperature (1 500 ℃and 1 600 ℃) on the relative density and mechanical properties of the composites were described.The effects of fracture mechanism on mechanical properties of the composites were researched together with the refining performance of AlTiB master alloys.关键词
氧化铝/铝钛硼中间合金/复合陶瓷/细化特性Key words
alumina/aluminium titanium boracium master alloys/composites/refining performance分类
化学化工引用本文复制引用
刘长霞,张建华,张希华,孙军龙..热压法制备Al2O3/TiB2/AlN/TiN复合陶瓷[J].硅酸盐学报,2006,34(7):782-787,6.基金项目
教育部科学技术研究重点(03101) （03101）
山东省杰出中青年科学家奖励基金(03BS103)资助项目. （03BS103）
