硅酸铝短纤维增强铝硅合金复合材料的界面结构  

INTERFACE STRUCTURE OF ALUMINOSILICATE SHORT FIBRE REINFORCED AlSi ALLOY COMPOSITE

作　　者：操光辉[1] 吴申庆[1] 舒光冀[1] 沈光骏[1] 

机构地区：[1]东南大学

出　　处：《复合材料学报》1999年第2期73-76,共4页Acta Materiae Compositae Sinica

摘　　要：用挤压铸造法制备硅酸铝短纤维（Ａｌ２Ｏ３·ＳｉＯ２）增强铝硅（Ａｌ－Ｓｉ）合金复合材料，并利用透射电镜观察了Ａｌ２Ｏ３·ＳｉＯ２纤维与Ａｌ－Ｓｉ合金基体界面。结果表明：硅酸铝纤维局部区域与合金中的镁及预制件中的粘结剂起反应，反应生成物分别为ＭｇＡｌ２Ｏ４和Ｓｉ３（ＰＯ４）４。Aluminosilicate(Al2O3 SiO2) short fibre reinforced AlSi alloy composite was fabricated by means of squeeze casting and the interface between aluminosilicate fibre and AlSi alloy matrix was studied by TEM. The experimental results show that the reaction products between aluminosilicate fibre and magnesium in AlSi alloy and binder in preform are MgAl2O4(spinel) and Si3(PO4)4.

关 键 词：短纤维 复合材料 界面结构 硅酸铝 铝硅合金 

分 类 号：TB331.03[一般工业技术—材料科学与工程]