摘要
研究了凝胶注成型过程中 ,排胶对坯体强度及其显微结构的影响 .研究发现 ,随着排胶温度的升高 ,排胶过程具有阶段性 :当温度低于 2 0 0℃时 ,坯体强度稍有下降 ;当温度升至 35 0～ 5 0 0℃时 ,由于坯体内部高分子网络逐渐软化、分解 ,强度显著下降 ;当温度高于 5 0 0℃时 ,由于坯体内部局部烧结 ,强度则逐渐回升 .
The variation of strength and microstructure of green bodies were studied in the course of binders' burning out. The results show that the burnout course could be divided into three stages. When temperature is below 200 degree C, the mechanical properties of green bodies decrease with temperature increasing. When temperature increases to 350～500 degree C, the strength decreases sharply because the organic net formed in shaping course becomes softening and decompositing. And when temperature increases to 900 degree C, the strength increases gradually because of the partial sintering occured in the body.
出处
《西安交通大学学报》
EI
CAS
CSCD
北大核心
2001年第11期1198-1200,共3页
Journal of Xi'an Jiaotong University
基金
西安交通大学科学研究基金资助项目
