镁粉的高温水反应特性研究  

Characteristics of reaction between magnesium and water at high temperature

作　　者：周星[1] 张炜[1] 李是良[1] 

机构地区：[1]国防科技大学航天与材料工程学院,长沙410073

出　　处：《固体火箭技术》2009年第3期302-305,共4页Journal of Solid Rocket Technology

基　　金：国家安全重大基础研究课题子专题(613500103)

摘　　要：采用管式炉模拟发动机的高温环境（600～900℃），研究了镁粉与水的反应特性，得到了反应率与温度、镁粉粒度的关系和添加剂对反应的影响。结果表明，Mg／H2O反应的反应率随温度增加而增大，随粒径减小而增大，添加剂对反应有促进作用，Mg／H2O反应的表观活化能为24．67kJ／mol。The characteristics of the reaction between magnesium and water at high temperature between 600℃ and 900℃ were studied by means of the tube furnace. The effects of temperature, magnesium size and additives on reaction degree were derived. The results indicate that the reaction degree of magnesium/water increases with increase of temperature and reduction of particle size. The reaction degree of magnesium/water is enhanced by additives. The apparent activation energy of magnesium/water reaction is 24.67 kJ/mol.

关 键 词：水反应金属燃料 镁粉 反应率 添加剂 

分 类 号：V512[航空宇航科学与技术—航空宇航推进理论与工程]