Al_2O_3/W层状复合材料的制备

Preparation of Alumina/W Laminated Composites

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．

Layered composites Al 2O 3/W was prepared using centrifugal slip casting and hot pressing sintering. The effects of different Al 2O 3 and metal layer thickness on the mechanical properties of the mutilayered composites were studied. Results indicated that strengh and fracture toughness of Al 2O 3/W laminated composites were depened not only the thickness of Al 2O 3 and metal layer, but also thickness ratio of ceramic-metal layer.