摘要
采用静态自蔓延高温合成法在碳钢钢管内壁生成一层均匀致密的陶瓷涂层，研究了不同组成的陶瓷涂层相组成及显微组织。结果表明，添加适量的ＳｉＯ２作为稀释剂，可以生成低熔点的硅铝化合物Ａｌ６Ｓｉ２Ｏ１３，减少了涂层孔隙，改善了陶瓷涂层的组织结构。
A uniform dense ceramic coating on the inner surface of steel pipe is formed by static SHS process.The phase constituent and microstructure of ceramic coating with different compositions were investigated.The results show that adding appropriate SiO_2 as diluent can produce aluminum silicate Al_6Si_2O_13 with low melting point,decrease porosity of ceramic coating and densify its structure.
关键词
陶瓷涂层
稀释剂
静态铝热法
燃料合成
static SHS (self-propogating high temperature synthesis)
ceramic coating
diluent
