目前,在汽车结构中越来越多地采用多孔陶瓷,即含有纤维成分的合成材料。纤维既可用结晶(丝状单晶、多晶)纤维,也可用非结晶(如玻璃)纤维,一般多用玻璃纤维。玻璃纤维的原料多、价廉,比结晶纤维结实且耐高温,特别是含硅富铝的玻璃纤维。这种纤维由氧化硅和氧化铝组成(1:1),每根纤维长3～4mm,直径2～3μm。 At present, porous ceramics are increasingly used in automobile structures, that is, synthetic materials containing fiber components. Fiber can be used both crystalline (filamentous single crystal, polycrystalline) fiber, can also be used non-crystalline (such as glass) fiber, the general multi-purpose fiberglass. Glass fiber raw materials, cheap, stronger than the crystalline fiber and high temperature, especially silicon-rich aluminum-rich glass fiber. This fiber consists of silica and alumina (1: 1), each fiber length 3 ~ 4mm, diameter 2 ~ 3μm.