一氧化钛基金属陶瓷仿金材料的制备及性能研究  

Preparation and Properties of TiO Based Cermets Imitated Gold

作　　者：李庆奎[1] 赵红亮[1] 钟晖[2] 钟海云[2] 

机构地区：[1]郑州大学科学与工程材料学院,河南郑州450002 [2]中南大学冶金科学与工程学院,湖南长沙410083

出　　处：《稀有金属》2005年第3期279-284,共6页Chinese Journal of Rare Metals

摘　　要：研究了粉末冶金法制备Fe25%Cr Si/TiO金属陶瓷仿金材料的工艺及材料性能。结果表明,1400℃以前快速升温和延长1400～1460℃升温时间,有利于提高金属陶瓷的强度;随着粘结相含量的增加,所要求的粘结相中最低Si含量减少,金属陶瓷组织细化,抗弯强度、韧性、密度提高,但与24KAu之间的色度差增大;粘结相含量在6%～8%,金属陶瓷具有较好的综合性能,是一种性能优良的新型仿金材料。Preparation processes and properties of Fe-25%Cr-Si/TiO cermets imitated gold by P/M technique were investigated. The results indicate that increase the temperature rising speed below 1400 ℃ with the holding time during 1400～1460 ℃ which is helpful to achieve higher cermets strength. As the Si content needed in the binder phase decreases, the cermets structure becomes fine. Its flexural strength, toughness and density increase, and the chromatism compared with 24KAu augmented with the increase of binder phase content. The TiO-based cermets with 6%～8% binder phase possesses preferable compositive properties is a new kind of imitated gold with excellent property.

关 键 词：一氧化钛 仿金材料 金属陶瓷 

分 类 号：TG148[一般工业技术—材料科学与工程]