摘要
从热力学上对Mg-Ti-B-O体系的自蔓延反应进行了理论分析,计算了稀释剂MgO、TiB2含量和预热温度对反应绝热温度的影响.结果表明,随着稀释剂MgO、TiB2含量和预热温度的不同反应绝热温度也不同,在同一预热温度下,随着稀释剂含量的增加绝热温度降低;同一体系中在稀释剂含量相同时,随着预热温度的升高绝热温度也升高;随着预热温度的不断升高,燃烧反应能自我维持的稀释剂的临界值也逐渐升高.
A thermodynamic analysis was carried out on the self -propagating high-temperature synthesis of TiB2 in Mg-Ti- B-O system. The influence of preheating temperature and the amount of diluents on the adiabatic temperature has been taken into consideration. The results show that with different preheating temperature and diluents quantity, the adiabatic temperoture is different. At the same preheating temperature, the adiabatic temperature will drop with the increase of the amount of diluents. In the same system with the same amount of diluents, the adiabatic temperature will rise with the increase of preheating temperature. Cansequently, the critical quantity of dilnents which can carry through the combustion reaction by itself will increase gradually with the increasing of the preheating temperature.
出处
《西安建筑科技大学学报（自然科学版）》
CSCD
北大核心
2006年第5期728-730,共3页
Journal of Xi'an University of Architecture & Technology(Natural Science Edition)
关键词
自蔓延
TIB2
绝热温度
self propagating high-temperature synthesis
TiB2 adiabatic temperature
