Taking black corundum particals as ceramics component,hypereutectoid steel as matrix metal,and Si-Fe as alloy,the crucibles of composites made of three layer components were obtained.

• 采用黑刚玉为陶瓷,过共析钢为基体金属,硅铁为合金构成三层复合材料坩埚。目的分别是抵抗铝金属液体的浸蚀,使材料具有一定强度且能抵抗高温气体的氧化。