Preparation of Alumina /W Laminated Composites

Abstract

采用流态成型－离心注浆成型、热压烧结成功地制备了Ａｌ２Ｏ３／Ｗ层状复合材料，研究了Ａｌ２Ｏ３层、金属Ｗ层的厚度对层状复合材料力学性能的影响．结果表明，Ａｌ２Ｏ３／Ｗ层状复合材料的抗弯强度和断裂韧性不仅与Ａｌ２Ｏ３层、金属Ｗ层的厚度有关，而且与Ａｌ２Ｏ３／Ｗ层厚比有关．Abstract　Layered compo sites Al2O3 /W was prepa red using cent ri fugal slip casting and hot pressing sintering. The effect s of di fferent Al2O3 and metal layer thickness on the mechanical properties of the mutilay ered compo sites w ere studied. Resul ts indica ted that streng h and f racture toug hness of Al2O3 /W lamina ted compo sites w ere depened no t only the thickness o f Al2O3 a nd metal layer, but also thickness ratio o f ceramic- metal layer