摘要
本文报道了以TiN、Al和BN为原料通过反应热压法制备TiB2／AlN复合陶瓷的实验结果，对该反应的热力学过程，产物的物相、微观结构与形貌进行了研究与讨论．结果表明，原料在800℃左右开始反应，随着温度的升高反应越完全，1700℃左右完全反应．通过SEM观察发现，生成的TiB2／AlN复合陶瓷具有很高的致密度，晶粒尺寸细小且分布均匀，通过反应得到的AlN晶粒具有大量的层状和李晶结构．
In this paper using TiN, Al and BN as raw materials, reactive hot presing method wasproposed to produce TiB2/AlN ceramic composites. The thermodynamic processing of the reaction, thephase, microstructure and morphology of the samples were studied. The results showed that the rawmaterials begin to react at about 800℃, with raising temperature the raw materials reacted more andmore completely and they could react completely at about 1700 ℃. The sample has high density andsmall gain size, and the acquired phases are distributed uniformly. The AlN phases in the sample hasplenty of laminated and twin structures.
出处
《金属学报》
SCIE
EI
CAS
CSCD
北大核心
1999年第6期659-662,共4页
Acta Metallurgica Sinica
基金
清华大学校内研究基金!96-10
