反应烧结碳化硅陶瓷航天器燃烧室的研制

采用反应烧结碳化硅陶瓷制备形状较复杂且尺寸精度要求高的某航天器燃烧室。研制结果表明：用反应烧结碳化硅陶瓷制备某航天器燃烧室是合适的，其强度随Ｓｉ含量的变化而有较大变化，在本文试验条件下，制件的最佳Ｓｉ含量为１０．５％ ；该方法适于制备使用温度在１５００℃以下尺寸精度要求高的高温结构件。

Development of reaction bonded SiC ceramics spacecraft combustion chamher

The process of the application of reaction bonded SiC ceramics to the manufacture of spacecraft combustion chamber was investigated.The results showed that spacecraft combustion chamber made from reaction bonded SiC ceramics is acceptable and results of the experiment is satisfactory.The strength of parts with reaction bonded SiC ceramics is changing with silicon content.Under the this article testing condition,the optimum silicon content is 10.5%.The method of reaction bonded SiC ceramics is suited for manufacture parts of complicated structure and higher size precision.