摘要
通过注浆成型，空气中反应烧结等工艺过程，制备了一种透气性Ｍｕｌｉｔｅ－Ｆｅ２Ｏ３－Ｆｅ陶瓷－金属复合材料，运用ＸＲＤ（高温及常温），ＴＧ－ＤＴＡ等方法，考察了反应烧结过程中的相演变行为及冷至室温后试样心部至表面的相组成变化，对实验结果进行了热力学及动力学分析。
Mullite FeO Fe ceramic metal composite samples were prepared by slip casting the slurry consisting of mullite ,iron powders and hydrolysates of ethyl silicate,followed by sintering at air atmosphere. The TG-DTA experiments and elevated temperature XRD experiments were employed to investigate phase evolution behavior of samples during sintering at temperature ranging from 800 to 1250℃, and room temperature XRD experiments were employed to investigate phase distribution from the core to surface of sintered samples.The results demonstrated the phase components of the core were different from the surface.The phase transformation behavior was discussed thermodynamically and kinetically.
出处
《中国陶瓷》
CAS
CSCD
北大核心
1997年第6期8-11,共4页
China Ceramics
关键词
相结构
莫来石
陶瓷
金属
复合材料
透气性
烧结
XRD phase analysis Mullite Ceramic-metal composite Gas-permeability
